Eight-channel double-laser MZI56G chip

Abstract

The utility model relates to the technical field of silicon optical modulation chips, and particularly discloses an eight-channel dual-laser MZI56G chip. Comprising an optical input port I1, an optical output port O1, an optical output port O2, an optical output port O3, an optical output port O4, an optical splitter BSI1, an optical splitter BS1, an optical splitter BS2, an optical splitter BS3, a first MZI photoelectric modulator, a second MZI photoelectric modulator, a third MZI photoelectric modulator, a fourth MZI photoelectric modulator, an optical splitter BSO1, an optical splitter BSO2, an optical splitter BSO3, an optical splitter BSO4, a photodiode MPDI1, a photodiode MPD1O, a photodiode MPD2O and a photodiode MPD3O. The utility model relates to a photoelectric diode MPD4O, and aims to solve the problems of high application cost and high packaging cost due to the fact that 8 paths of independent DFB (Distributed Feedback) or EML (Empirical Mode Laser) are generally used by an optical module above 8 * 100G in the prior art.

Description

Technical Field

[0001] This application relates to the field of silicon photonics modulation chip technology, specifically to an eight-channel dual-laser MZI56G chip. Background Technology

[0002] Existing 8x100G and above optical modules generally use 8 separate DFB or EML lasers, which has problems such as high application cost and high packaging cost. Summary of the Invention

[0003] The purpose of this application is to provide an eight-channel dual-laser MZI56G chip to solve the problem that existing optical modules of 8x100G and above generally use eight separate DFB or EML lasers, which have high application costs and high packaging costs.

[0004] To achieve the above objectives, this application provides an eight-channel dual-laser MZI56G chip, comprising: an optical input port I1, an optical output port O1, an optical output port O2, an optical output port O3, an optical output port O4, a beam splitter BSI1, a beam splitter BS1, a beam splitter BS2, a beam splitter BS3, a first MZI opto-modulator, a second MZI opto-modulator, a third MZI opto-modulator, a fourth MZI opto-modulator, a beam splitter BSO1, a beam splitter BSO2, a beam splitter BSO3, a beam splitter BSO4, photodiodes MPDI1, MPD10, MPD20, MPD30, and MPD40, wherein...

[0005] The optical input port I1 is connected to the optical input terminal of the beam splitter BSI1, the first optical output terminal of the beam splitter BSI1 is connected to the optical input terminal of the photodiode MPDI1, and the second optical output terminal of the beam splitter BSI1 is connected to the optical input terminal of the beam splitter BS1.

[0006] The first optical output terminal of the beam splitter BS1 is connected to the optical input terminal of the beam splitter BS2, and the second optical output terminal of the beam splitter BS1 is connected to the optical input terminal of the beam splitter BS3.

[0007] The first optical output terminal of the beam splitter BS2 is connected to the optical input terminal of the first MZI opto-modulator, and the second optical output terminal of the beam splitter BS2 is connected to the optical input terminal of the second MZI opto-modulator.

[0008] The first optical output terminal of the beam splitter BS3 is connected to the optical input terminal of the third MZI opto-modulator, and the second optical output terminal of the beam splitter BS3 is connected to the optical input terminal of the fourth MZI opto-modulator.

[0009] The optical output terminal of the first MZI optomodulator is connected to the optical input terminal of the beam splitter BSO1, the first optical output terminal of the beam splitter BSO1 is connected to the optical input terminal of the photodiode MPD1O, and the second optical output terminal of the beam splitter BSO1 is connected to the optical output port O1.

[0010] The optical output terminal of the second MZI optomodulator is connected to the optical input terminal of the beam splitter BSO2, the first optical output terminal of the beam splitter BSO2 is connected to the optical input terminal of the photodiode MPD2O, and the second optical output terminal of the beam splitter BSO2 is connected to the optical output port O2.

[0011] The optical output terminal of the third MZI optomodulator is connected to the optical input terminal of the beam splitter BSO3, the first optical output terminal of the beam splitter BSO3 is connected to the optical input terminal of the photodiode MPD3O, and the second optical output terminal of the beam splitter BSO3 is connected to the optical output port O3.

[0012] The optical output terminal of the fourth MZI opto-modulator is connected to the optical input terminal of the beam splitter BSO4, the first optical output terminal of the beam splitter BSO4 is connected to the optical input terminal of the photodiode MPD4O, and the second optical output terminal of the beam splitter BSO4 is connected to the optical output port O4.

[0013] Optionally, it also includes: optical input port I2, optical output port O5, optical output port O6, optical output port O7, optical output port O8, beam splitter BSI2, beam splitter BS4, beam splitter BS5, beam splitter BS6, fifth MZI opto-modulator, sixth MZI opto-modulator, seventh MZI opto-modulator, eighth MZI opto-modulator, beam splitter BSO5, beam splitter BSO6, beam splitter BSO7, beam splitter BSO8, photodiode MPD50, photodiode MPD60, photodiode MPD70, and photodiode MPD80, wherein...

[0014] The optical input port I2 is connected to the optical input terminal of the beam splitter BSI2, the first optical output terminal of the beam splitter BSI2 is connected to the optical input terminal of the photodiode MPDI2, and the second optical output terminal of the beam splitter BSI2 is connected to the optical input terminal of the beam splitter BSI4.

[0015] The first optical output terminal of the beam splitter BSI4 is connected to the optical input terminal of the beam splitter BSI5, and the second optical output terminal of the beam splitter BSI4 is connected to the optical input terminal of the beam splitter BSI6.

[0016] The first optical output terminal of the beam splitter BSI5 is connected to the optical input terminal of the fifth MZI opto-modulator, and the second optical output terminal of the beam splitter BSI5 is connected to the optical input terminal of the sixth MZI opto-modulator.

[0017] The first optical output terminal of the beam splitter BSI6 is connected to the optical input terminal of the seventh MZI opto-modulator, and the second optical output terminal of the beam splitter BSI6 is connected to the optical input terminal of the eighth MZI opto-modulator.

[0018] The optical output terminal of the fifth MZI optomodulator is connected to the optical input terminal of the beam splitter BSO5, the first optical output terminal of the beam splitter BSO5 is connected to the optical input terminal of the photodiode MPD5O, and the second optical output terminal of the beam splitter BSO5 is connected to the optical output port O5.

[0019] The optical output terminal of the sixth MZI optomodulator is connected to the optical input terminal of the beam splitter BSO6, the first optical output terminal of the beam splitter BSO6 is connected to the optical input terminal of the photodiode MPD6O, and the second optical output terminal of the beam splitter BSO6 is connected to the optical output port O6.

[0020] The optical output terminal of the seventh MZI optomodulator is connected to the optical input terminal of the beam splitter BSO7, the first optical output terminal of the beam splitter BSO7 is connected to the optical input terminal of the photodiode MPD7O, and the second optical output terminal of the beam splitter BSO7 is connected to the optical output port O7.

[0021] The optical output terminal of the eighth MZI opto-modulator is connected to the optical input terminal of the beam splitter BSO8, the first optical output terminal of the beam splitter BSO8 is connected to the optical input terminal of the photodiode MPD8O, and the second optical output terminal of the beam splitter BSO8 is connected to the optical output port O8.

[0022] Optionally, the beam splitters BSI1 and BSI2 are 5% to 95% one-to-two optical power splitting devices, wherein the first optical output terminals of the beam splitters BSI1 and BSI2 output 5% of the input optical wave energy, and the second optical output terminals of the beam splitters BSI1 and BSI2 output 95% of the input optical wave energy.

[0023] Optionally, the beam splitters BS1, BS2, BS3, BS4, BS5, and BS6 are 50% to 50% one-to-two optical power splitting devices, wherein the first and second optical output terminals of the beam splitters BS1, BS2, BS3, BS4, BS5, and BS6 respectively output 50% of the input optical wave energy.

[0024] Optionally, the optical input port I1, optical input port I2, optical output port O1, optical output port O2, optical output port O3, optical output port O4, optical output port O5, optical output port O6, optical output port O7, and optical output port O8 are all edge couplers set on the silicon photonics modulation chip.

[0025] Optionally, the two electrical modulation signal input terminals of the first MZI opto-modulator are respectively connected to the radio frequency (RF) ports RF1P and RF1N on the silicon photonics modulation chip; the two electrical modulation signal input terminals of the second MZI opto-modulator are respectively connected to the RF ports RF2P and RF2N on the silicon photonics modulation chip; the two electrical modulation signal input terminals of the third MZI opto-modulator are respectively connected to the RF ports RF3P and RF3N on the silicon photonics modulation chip; and the two electrical modulation signal input terminals of the fourth MZI opto-modulator are respectively connected to the RF ports RF4P and RF4N on the silicon photonics modulation chip. N, the two electrical modulation signal input terminals of the fifth MZI opto-modulator are respectively connected to the radio frequency ports RF5P and RF5N on the silicon photonic modulation chip; the two electrical modulation signal input terminals of the sixth MZI opto-modulator are respectively connected to the radio frequency ports RF6P and RF6N on the silicon photonic modulation chip; the two electrical modulation signal input terminals of the seventh MZI opto-modulator are respectively connected to the radio frequency ports RF7P and RF7N on the silicon photonic modulation chip; and the two electrical modulation signal input terminals of the eighth MZI opto-modulator are respectively connected to the radio frequency ports RF8P and RF8N on the silicon photonic modulation chip.

[0026] Optionally, the two voltage terminals of the first MZI opto-modulator are respectively connected to VPN1 and VDD1 terminals on the silicon photonics modulation chip; the two voltage terminals of the second MZI opto-modulator are respectively connected to VPN2 and VDD2 terminals on the silicon photonics modulation chip; the two voltage terminals of the third MZI opto-modulator are respectively connected to VPN3 and VDD3 terminals on the silicon photonics modulation chip; the two voltage terminals of the fourth MZI opto-modulator are respectively connected to VPN4 and VDD4 terminals on the silicon photonics modulation chip; the two voltage terminals of the fifth MZI opto-modulator are respectively connected to VPN5 and VDD5 terminals on the silicon photonics modulation chip; the two voltage terminals of the sixth MZI opto-modulator are respectively connected to VPN6 and VDD6 terminals on the silicon photonics modulation chip; the two voltage terminals of the seventh MZI opto-modulator are respectively connected to VPN7 and VDD7 terminals on the silicon photonics modulation chip; and the two voltage terminals of the eighth MZI opto-modulator are respectively connected to VPN8 and VDD8 terminals on the silicon photonics modulation chip.

[0027] Optionally, the beam splitters BSO1, BSO2, BSO3, BSO4, BSO5, BSO6, BSO7, and BSO8 are 5% to 95% one-to-two optical power splitting devices, wherein the first optical output terminals of beam splitters BSO1, BSO2, BSO3, BSO4, BSO5, BSO6, BSO7, and BSO8 output 5% of the input optical wave energy and input it to the photodiodes MPD1O, MPD2O, MPD3O, and MPD4O, respectively. The optical input terminals of photodiodes MPD4O, MPD5O, MPD6O, MPD7O, and MPD8O, and the second optical output terminals of beam splitters BSO1, BSO2, BSO3, BSO4, BSO5, BSO6, BSO7, and BSO8 output 95% of the input optical wave energy and input it to the optical output ports O1, O2, O3, O4, O5, O6, O7, and O8, respectively.

[0028] Optionally, the two electrical output terminals of the photodiode MPDI1 are respectively connected to the IPD1+ and IPD1- terminals provided on the silicon photonic modulation chip, and the two electrical output terminals of the photodiode MPDI2 are respectively connected to the IPD2+ and IPD2- terminals provided on the silicon photonic modulation chip.

[0029] The two electrical output terminals of photodiode MPD1O are respectively connected to the OPD1+ and OPD1- terminals on the silicon photonic modulation chip; the two electrical output terminals of photodiode MPD2O are respectively connected to the OPD2+ and OPD2- terminals on the silicon photonic modulation chip; the two electrical output terminals of photodiode MPD3O are respectively connected to the OPD3+ and OPD3- terminals on the silicon photonic modulation chip; and the two electrical output terminals of photodiode MPD4O are respectively connected to the OPD4+ and OPD4- terminals on the silicon photonic modulation chip. The two electrical output terminals of photodiode MPD5O are respectively connected to the OPD5+ and OPD5- terminals on the silicon photonic modulation chip. The two electrical output terminals of photodiode MPD6O are respectively connected to the OPD6+ and OPD6- terminals on the silicon photonic modulation chip. The two electrical output terminals of photodiode MPD7O are respectively connected to the OPD7+ and OPD7- terminals on the silicon photonic modulation chip. The two electrical output terminals of photodiode MPD8O are respectively connected to the OPD8+ and OPD8- terminals on the silicon photonic modulation chip.

[0030] The embodiments of this application have the following advantages:

[0031] Compared to existing technologies, the 8x56G baud rate silicon photonic modulation chip based on MZI technology provided by the above technical solution includes an eight-channel high-bandwidth MZI opto-modulator and a corresponding monitoring optical power photodiode, which can be used in any 8-channel 56G baud / channel rate application. This integrated solution replaces the single-channel laser approach, reducing the application and packaging costs of the optical module. Attached Figure Description

[0032] To more clearly illustrate the embodiments of this application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0033] Figure 1 A circuit structure block diagram of an eight-channel dual-laser MZI56G chip provided for at least one embodiment of this application. Detailed Implementation

[0034] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication of two elements. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0036] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0037] This application provides an eight-channel dual-laser MZI56G chip, referenced... Figure 1 ,include:

[0038] Optical input port I1, optical output port O1, optical output port O2, optical output port O3, optical output port O4, beam splitter BSI1, beam splitter BS1, beam splitter BS2, beam splitter BS3, first MZI opto-modulator, second MZI opto-modulator, third MZI opto-modulator, fourth MZI opto-modulator, beam splitter BSO1, beam splitter BSO2, beam splitter BSO3, beam splitter BSO4, photodiode MPDI1, photodiode MPD1O, photodiode MPD2O, photodiode MPD3O, photodiode MPD4O, wherein...

[0039] The optical input port I1 is connected to the optical input terminal of the beam splitter BSI1, the first optical output terminal of the beam splitter BSI1 is connected to the optical input terminal of the photodiode MPDI1, and the second optical output terminal of the beam splitter BSI1 is connected to the optical input terminal of the beam splitter BS1.

[0040] The first optical output terminal of the beam splitter BS1 is connected to the optical input terminal of the beam splitter BS2, and the second optical output terminal of the beam splitter BS1 is connected to the optical input terminal of the beam splitter BS3.

[0041] The first optical output terminal of the beam splitter BS2 is connected to the optical input terminal of the first MZI opto-modulator, and the second optical output terminal of the beam splitter BS2 is connected to the optical input terminal of the second MZI opto-modulator.

[0042] The first optical output terminal of the beam splitter BS3 is connected to the optical input terminal of the third MZI opto-modulator, and the second optical output terminal of the beam splitter BS3 is connected to the optical input terminal of the fourth MZI opto-modulator.

[0043] The optical output terminal of the first MZI optomodulator is connected to the optical input terminal of the beam splitter BSO1, the first optical output terminal of the beam splitter BSO1 is connected to the optical input terminal of the photodiode MPD1O, and the second optical output terminal of the beam splitter BSO1 is connected to the optical output port O1.

[0044] The optical output terminal of the second MZI optomodulator is connected to the optical input terminal of the beam splitter BSO2, the first optical output terminal of the beam splitter BSO2 is connected to the optical input terminal of the photodiode MPD2O, and the second optical output terminal of the beam splitter BSO2 is connected to the optical output port O2.

[0045] The optical output terminal of the third MZI optomodulator is connected to the optical input terminal of the beam splitter BSO3, the first optical output terminal of the beam splitter BSO3 is connected to the optical input terminal of the photodiode MPD3O, and the second optical output terminal of the beam splitter BSO3 is connected to the optical output port O3.

[0046] The optical output terminal of the fourth MZI opto-modulator is connected to the optical input terminal of the beam splitter BSO4, the first optical output terminal of the beam splitter BSO4 is connected to the optical input terminal of the photodiode MPD4O, and the second optical output terminal of the beam splitter BSO4 is connected to the optical output port O4.

[0047] In some embodiments, the system further includes: optical input port I2, optical output port O5, optical output port O6, optical output port O7, optical output port O8, beam splitter BSI2, beam splitter BS4, beam splitter BS5, beam splitter BS6, fifth MZI opto-modulator, sixth MZI opto-modulator, seventh MZI opto-modulator, eighth MZI opto-modulator, beam splitter BSO5, beam splitter BSO6, beam splitter BSO7, beam splitter BSO8, photodiode MPD50, photodiode MPD60, photodiode MPD70, and photodiode MPD80, wherein...

[0048] The optical input port I2 is connected to the optical input terminal of the beam splitter BSI2, the first optical output terminal of the beam splitter BSI2 is connected to the optical input terminal of the photodiode MPDI2, and the second optical output terminal of the beam splitter BSI2 is connected to the optical input terminal of the beam splitter BSI4.

[0049] The first optical output terminal of the beam splitter BSI4 is connected to the optical input terminal of the beam splitter BSI5, and the second optical output terminal of the beam splitter BSI4 is connected to the optical input terminal of the beam splitter BSI6.

[0050] The first optical output terminal of the beam splitter BSI5 is connected to the optical input terminal of the fifth MZI opto-modulator, and the second optical output terminal of the beam splitter BSI5 is connected to the optical input terminal of the sixth MZI opto-modulator.

[0051] The first optical output terminal of the beam splitter BSI6 is connected to the optical input terminal of the seventh MZI opto-modulator, and the second optical output terminal of the beam splitter BSI6 is connected to the optical input terminal of the eighth MZI opto-modulator.

[0052] The optical output terminal of the fifth MZI optomodulator is connected to the optical input terminal of the beam splitter BSO5, the first optical output terminal of the beam splitter BSO5 is connected to the optical input terminal of the photodiode MPD5O, and the second optical output terminal of the beam splitter BSO5 is connected to the optical output port O5.

[0053] The optical output terminal of the sixth MZI optomodulator is connected to the optical input terminal of the beam splitter BSO6, the first optical output terminal of the beam splitter BSO6 is connected to the optical input terminal of the photodiode MPD6O, and the second optical output terminal of the beam splitter BSO6 is connected to the optical output port O6.

[0054] The optical output terminal of the seventh MZI optomodulator is connected to the optical input terminal of the beam splitter BSO7, the first optical output terminal of the beam splitter BSO7 is connected to the optical input terminal of the photodiode MPD7O, and the second optical output terminal of the beam splitter BSO7 is connected to the optical output port O7.

[0055] The optical output terminal of the eighth MZI opto-modulator is connected to the optical input terminal of the beam splitter BSO8, the first optical output terminal of the beam splitter BSO8 is connected to the optical input terminal of the photodiode MPD8O, and the second optical output terminal of the beam splitter BSO8 is connected to the optical output port O8.

[0056] In some embodiments, the beam splitters BSI1 and BSI2 are 5% to 95% one-to-two optical power splitting devices, wherein the first optical output terminals of the beam splitters BSI1 and BSI2 output 5% of the input optical wave energy, and the second optical output terminals of the beam splitters BSI1 and BSI2 output 95% of the input optical wave energy.

[0057] Specifically, the beam splitters BSI1 and BSI2 are 5% to 95% one-to-two optical power splitting devices. The first optical output terminals of beam splitters BSI1 and BSI2 output 5% of the input optical wave energy and input it to the optical power monitoring photodiodes MPDI1 and MPDI2, respectively. The second optical output terminals of beam splitters BSI1 and BSI2 output 95% of the input optical wave energy and input it to beam splitters BS1 and BS4, respectively.

[0058] In some embodiments, the beam splitters BS1, BS2, BS3, BS4, BS5, and BS6 are 50% to 50% one-to-two optical power splitting devices, wherein the first and second optical output terminals of the beam splitters BS1, BS2, BS3, BS4, BS5, and BS6 respectively output 50% of the input optical wave energy.

[0059] In some embodiments, the optical input port I1, optical input port I2, optical output port O1, optical output port O2, optical output port O3, optical output port O4, optical output port O5, optical output port O6, optical output port O7, and optical output port O8 are all edge couplers disposed on the silicon photonics modulation chip.

[0060] Specifically, optical input ports I1 and I2 provide two edge couplers for the input of the local oscillator, which are respectively connected to the two beam splitters BSI1 and BSI2. Optical output ports O1, O2, O3, O4, O5, O6, O7, and O8 provide eight edge couplers for the eight-channel output.

[0061] Specifically, photodiodes MPDI1 and MPDI2 are used for monitoring the optical power of the input channel.

[0062] Specifically, photodiodes MPD1O, MPD2O, MPD3O, MPD4O, MPD5O, MPD6O, MPD7O, and MPD8O are used for optical power monitoring of the eight output channels.

[0063] In some embodiments, the two electrical modulation signal input terminals of the first MZI opto-modulator are respectively connected to the radio frequency (RF) ports RF1P and RF1N on the silicon photonic modulation chip; the two electrical modulation signal input terminals of the second MZI opto-modulator are respectively connected to the RF ports RF2P and RF2N on the silicon photonic modulation chip; the two electrical modulation signal input terminals of the third MZI opto-modulator are respectively connected to the RF ports RF3P and RF3N on the silicon photonic modulation chip; and the two electrical modulation signal input terminals of the fourth MZI opto-modulator are respectively connected to the RF ports RF4P and RF1N on the silicon photonic modulation chip. F4N, the two electrical modulation signal input terminals of the fifth MZI opto-modulator are respectively connected to the radio frequency ports RF5P and RF5N on the silicon photonic modulation chip; the two electrical modulation signal input terminals of the sixth MZI opto-modulator are respectively connected to the radio frequency ports RF6P and RF6N on the silicon photonic modulation chip; the two electrical modulation signal input terminals of the seventh MZI opto-modulator are respectively connected to the radio frequency ports RF7P and RF7N on the silicon photonic modulation chip; and the two electrical modulation signal input terminals of the eighth MZI opto-modulator are respectively connected to the radio frequency ports RF8P and RF8N on the silicon photonic modulation chip.

[0064] Specifically, the first MZI optoelectronic modulator, the second MZI optoelectronic modulator, the third MZI optoelectronic modulator, the fourth MZI optoelectronic modulator, the fifth MZI optoelectronic modulator, the sixth MZI optoelectronic modulator, the seventh MZI optoelectronic modulator, and the eighth MZI optoelectronic modulator are respectively Figure 1 The MZI modulators 1-8 (MZI modulator: MZI optoelectronic modulator, i.e., Mach-Zehnder interferometer modulator) are individual MZI modulators that modulate the differential RF electrical signal input from the RF ports (RF1P / RF1N-RF8P / RF8N) onto the output optical signal wavelength of the beam splitters BS2, BS3, BS5, and BS6. The RF input provides eight pairs of RF drive signal pads for the eight-channel modulator, operating in differential mode (P / N).

[0065] In some embodiments, the two voltage terminals of the first MZI opto-modulator are respectively connected to VPN1 and VDD1 terminals on the silicon photonics modulation chip; the two voltage terminals of the second MZI opto-modulator are respectively connected to VPN2 and VDD2 terminals on the silicon photonics modulation chip; the two voltage terminals of the third MZI opto-modulator are respectively connected to VPN3 and VDD3 terminals on the silicon photonics modulation chip; the two voltage terminals of the fourth MZI opto-modulator are respectively connected to VPN4 and VDD4 terminals on the silicon photonics modulation chip; the two voltage terminals of the fifth MZI opto-modulator are respectively connected to VPN5 and VDD5 terminals on the silicon photonics modulation chip; the two voltage terminals of the sixth MZI opto-modulator are respectively connected to VPN6 and VDD6 terminals on the silicon photonics modulation chip; the two voltage terminals of the seventh MZI opto-modulator are respectively connected to VPN7 and VDD7 terminals on the silicon photonics modulation chip; and the two voltage terminals of the eighth MZI opto-modulator are respectively connected to VPN8 and VDD8 terminals on the silicon photonics modulation chip.

[0066] Specifically, VDD is an external input DC voltage, which is input to the DC bias terminal of the Mach-Zehnder interferometer modulator, and VPN is an external input DC voltage, which is input to the PN junction of the high-frequency section of the Mach-Zehnder interferometer modulator.

[0067] In some embodiments, the beam splitters BSO1, BSO2, BSO3, BSO4, BSO5, BSO6, BSO7, and BSO8 are 5% to 95% one-to-two optical power splitting devices. The first optical output terminals of beam splitters BSO1, BSO2, BSO3, BSO4, BSO5, BSO6, BSO7, and BSO8 output 5% of the input optical wave energy, which is then input to photodiodes MPD10, MPD20, and MPD30, respectively. The optical input terminals of photodiodes MPD4O, MPD5O, MPD6O, MPD7O, and MPD8O, and the second optical output terminals of beam splitters BSO1, BSO2, BSO3, BSO4, BSO5, BSO6, BSO7, and BSO8 output 95% of the input light wave energy, which is then input to optical output ports O1, O2, O3, O4, O5, O6, O7, and O8, respectively.

[0068] In some embodiments, the two electrical output terminals of the photodiode MPDI1 are respectively connected to the IPD1+ and IPD1- terminals provided on the silicon photonics modulation chip, and the two electrical output terminals of the photodiode MPDI2 are respectively connected to the IPD2+ and IPD2- terminals provided on the silicon photonics modulation chip.

[0069] The two electrical output terminals of photodiode MPD1O are respectively connected to the OPD1+ and OPD1- terminals on the silicon photonic modulation chip; the two electrical output terminals of photodiode MPD2O are respectively connected to the OPD2+ and OPD2- terminals on the silicon photonic modulation chip; the two electrical output terminals of photodiode MPD3O are respectively connected to the OPD3+ and OPD3- terminals on the silicon photonic modulation chip; and the two electrical output terminals of photodiode MPD4O are respectively connected to the OPD4+ and OPD4- terminals on the silicon photonic modulation chip. The two electrical output terminals of photodiode MPD5O are respectively connected to the OPD5+ and OPD5- terminals on the silicon photonic modulation chip. The two electrical output terminals of photodiode MPD6O are respectively connected to the OPD6+ and OPD6- terminals on the silicon photonic modulation chip. The two electrical output terminals of photodiode MPD7O are respectively connected to the OPD7+ and OPD7- terminals on the silicon photonic modulation chip. The two electrical output terminals of photodiode MPD8O are respectively connected to the OPD8+ and OPD8- terminals on the silicon photonic modulation chip.

[0070] In summary, compared with existing technologies, the 8x56G baud rate silicon photonic modulation chip based on MZI technology provided in this application includes an eight-channel high-bandwidth MZI optoelectronic modulator and a corresponding monitoring optical power photodiode, which can be used in any 8-channel 56G baud / channel rate application. This integrated solution replaces the single-channel laser approach, reducing the application and packaging costs of the optical module.

[0071] Note that, unless otherwise explicitly stated, all features disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by alternative features for achieving the same, equivalent, or similar purpose. Therefore, unless explicitly stated otherwise, each disclosed feature is merely one example of a set of equivalent or similar features. Where used, "further," "preferably," "even further," and "more preferably" are simple starting points for describing another embodiment based on the foregoing embodiments, the combination of which with the foregoing embodiments constitutes the complete configuration of another embodiment. Any combination of several "further," "preferably," "even further," or "more preferably" settings following the same embodiment constitutes yet another embodiment.

[0072] In the implementation of functions and steps, the corresponding functions and steps in the various embodiments may occur in a different order than those shown. For example, two consecutive functions and steps may actually be executed or implemented substantially in parallel, and they may sometimes be executed or implemented in reverse order, depending on the functions involved.

[0073] Although this application has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of this application fall within the scope of protection claimed in this application.

Claims

1. An eight-channel dual-laser MZI56G chip, characterized in that, include: Optical input port I1, optical output port O1, optical output port O2, optical output port O3, optical output port O4, beam splitter BSI1, beam splitter BS1, beam splitter BS2, beam splitter BS3, first MZI opto-modulator, second MZI opto-modulator, third MZI opto-modulator, fourth MZI opto-modulator, beam splitter BSO1, beam splitter BSO2, beam splitter BSO3, beam splitter BSO4, photodiode MPDI1, photodiode MPD1O, photodiode MPD2O, photodiode MPD3O, photodiode MPD4O, wherein... The optical input port I1 is connected to the optical input terminal of the beam splitter BSI1, the first optical output terminal of the beam splitter BSI1 is connected to the optical input terminal of the photodiode MPDI1, and the second optical output terminal of the beam splitter BSI1 is connected to the optical input terminal of the beam splitter BS1. The first optical output terminal of the beam splitter BS1 is connected to the optical input terminal of the beam splitter BS2, and the second optical output terminal of the beam splitter BS1 is connected to the optical input terminal of the beam splitter BS3. The first optical output terminal of the beam splitter BS2 is connected to the optical input terminal of the first MZI opto-modulator, and the second optical output terminal of the beam splitter BS2 is connected to the optical input terminal of the second MZI opto-modulator. The first optical output terminal of the beam splitter BS3 is connected to the optical input terminal of the third MZI opto-modulator, and the second optical output terminal of the beam splitter BS3 is connected to the optical input terminal of the fourth MZI opto-modulator. The optical output terminal of the first MZI optomodulator is connected to the optical input terminal of the beam splitter BSO1, the first optical output terminal of the beam splitter BSO1 is connected to the optical input terminal of the photodiode MPD1O, and the second optical output terminal of the beam splitter BSO1 is connected to the optical output port O1. The optical output terminal of the second MZI optomodulator is connected to the optical input terminal of the beam splitter BSO2, the first optical output terminal of the beam splitter BSO2 is connected to the optical input terminal of the photodiode MPD2O, and the second optical output terminal of the beam splitter BSO2 is connected to the optical output port O2. The optical output terminal of the third MZI optomodulator is connected to the optical input terminal of the beam splitter BSO3, the first optical output terminal of the beam splitter BSO3 is connected to the optical input terminal of the photodiode MPD3O, and the second optical output terminal of the beam splitter BSO3 is connected to the optical output port O3. The optical output terminal of the fourth MZI opto-modulator is connected to the optical input terminal of the beam splitter BSO4, the first optical output terminal of the beam splitter BSO4 is connected to the optical input terminal of the photodiode MPD4O, and the second optical output terminal of the beam splitter BSO4 is connected to the optical output port O4.

2. The eight-channel dual-laser MZI56G chip according to claim 1, characterized in that, Also includes: Optical input port I2, optical output port O5, optical output port O6, optical output port O7, optical output port O8, beam splitter BSI2, beam splitter BS4, beam splitter BS5, beam splitter BS6, fifth MZI opto-modulator, sixth MZI opto-modulator, seventh MZI opto-modulator, eighth MZI opto-modulator, beam splitter BSO5, beam splitter BSO6, beam splitter BSO7, beam splitter BSO8, photodiode MPD5O, photodiode MPD6O, photodiode MPD7O, photodiode MPD8O, wherein... The optical input port I2 is connected to the optical input terminal of the beam splitter BSI2, the first optical output terminal of the beam splitter BSI2 is connected to the optical input terminal of the photodiode MPDI2, and the second optical output terminal of the beam splitter BSI2 is connected to the optical input terminal of the beam splitter BSI4. The first optical output terminal of the beam splitter BSI4 is connected to the optical input terminal of the beam splitter BSI5, and the second optical output terminal of the beam splitter BSI4 is connected to the optical input terminal of the beam splitter BSI6. The first optical output terminal of the beam splitter BSI5 is connected to the optical input terminal of the fifth MZI opto-modulator, and the second optical output terminal of the beam splitter BSI5 is connected to the optical input terminal of the sixth MZI opto-modulator. The first optical output terminal of the beam splitter BSI6 is connected to the optical input terminal of the seventh MZI opto-modulator, and the second optical output terminal of the beam splitter BSI6 is connected to the optical input terminal of the eighth MZI opto-modulator. The optical output terminal of the fifth MZI optomodulator is connected to the optical input terminal of the beam splitter BSO5, the first optical output terminal of the beam splitter BSO5 is connected to the optical input terminal of the photodiode MPD5O, and the second optical output terminal of the beam splitter BSO5 is connected to the optical output port O5. The optical output terminal of the sixth MZI optomodulator is connected to the optical input terminal of the beam splitter BSO6, the first optical output terminal of the beam splitter BSO6 is connected to the optical input terminal of the photodiode MPD6O, and the second optical output terminal of the beam splitter BSO6 is connected to the optical output port O6. The optical output terminal of the seventh MZI optomodulator is connected to the optical input terminal of the beam splitter BSO7, the first optical output terminal of the beam splitter BSO7 is connected to the optical input terminal of the photodiode MPD7O, and the second optical output terminal of the beam splitter BSO7 is connected to the optical output port O7. The optical output terminal of the eighth MZI opto-modulator is connected to the optical input terminal of the beam splitter BSO8, the first optical output terminal of the beam splitter BSO8 is connected to the optical input terminal of the photodiode MPD8O, and the second optical output terminal of the beam splitter BSO8 is connected to the optical output port O8.

3. The eight-channel dual-laser MZI56G chip according to claim 2, characterized in that, The beam splitters BSI1 and BSI2 are 5% to 95% one-to-two optical power splitting devices, wherein the first optical output terminals of beam splitters BSI1 and BSI2 output 5% of the input optical wave energy, and the second optical output terminals of beam splitters BSI1 and BSI2 output 95% of the input optical wave energy.

4. The eight-channel dual-laser MZI56G chip according to claim 2, characterized in that, The beam splitters BS1, BS2, BS3, BS4, BS5, and BS6 are 50% to 50% one-to-two optical power splitting devices, wherein the first and second optical output terminals of beam splitters BS1, BS2, BS3, BS4, BS5, and BS6 respectively output 50% of the input optical wave energy.

5. The eight-channel dual-laser MZI56G chip according to claim 2, characterized in that, The optical input port I1, optical input port I2, optical output port O1, optical output port O2, optical output port O3, optical output port O4, optical output port O5, optical output port O6, optical output port O7, and optical output port O8 are all edge couplers set on the silicon photonics modulation chip.

6. The eight-channel dual-laser MZI56G chip according to claim 2, characterized in that, The first MZI opto-modulator has two electrical modulation signal input terminals connected to RF1P and RF1N on the silicon photonic modulation chip, respectively. The second MZI opto-modulator has two electrical modulation signal input terminals connected to RF2P and RF2N on the silicon photonic modulation chip, respectively. The third MZI opto-modulator has two electrical modulation signal input terminals connected to RF3P and RF3N on the silicon photonic modulation chip, respectively. The fourth MZI opto-modulator has two electrical modulation signal input terminals connected to RF4P and RF4N on the silicon photonic modulation chip, respectively. The two electrical modulation signal input terminals of the fifth MZI opto-modulator are respectively connected to the radio frequency ports RF5P and RF5N on the silicon photonic modulation chip. The two electrical modulation signal input terminals of the sixth MZI opto-modulator are respectively connected to the radio frequency ports RF6P and RF6N on the silicon photonic modulation chip. The two electrical modulation signal input terminals of the seventh MZI opto-modulator are respectively connected to the radio frequency ports RF7P and RF7N on the silicon photonic modulation chip. The two electrical modulation signal input terminals of the eighth MZI opto-modulator are respectively connected to the radio frequency ports RF8P and RF8N on the silicon photonic modulation chip.

7. The eight-channel dual-laser MZI56G chip according to claim 2, characterized in that, The two voltage terminals of the first MZI opto-modulator are respectively connected to the VPN1 terminal and VDD1 terminal on the silicon photonics modulation chip; the two voltage terminals of the second MZI opto-modulator are respectively connected to the VPN2 terminal and VDD2 terminal on the silicon photonics modulation chip; the two voltage terminals of the third MZI opto-modulator are respectively connected to the VPN3 terminal and VDD3 terminal on the silicon photonics modulation chip; the two voltage terminals of the fourth MZI opto-modulator are respectively connected to the VPN4 terminal and VDD4 terminal on the silicon photonics modulation chip; the two voltage terminals of the fifth MZI opto-modulator are respectively connected to the VPN5 terminal and VDD5 terminal on the silicon photonics modulation chip; the two voltage terminals of the sixth MZI opto-modulator are respectively connected to the VPN6 terminal and VDD6 terminal on the silicon photonics modulation chip; the two voltage terminals of the seventh MZI opto-modulator are respectively connected to the VPN7 terminal and VDD7 terminal on the silicon photonics modulation chip; and the two voltage terminals of the eighth MZI opto-modulator are respectively connected to the VPN8 terminal and VDD8 terminal on the silicon photonics modulation chip.

8. The eight-channel dual-laser MZI56G chip according to claim 2, characterized in that, The beam splitters BSO1, BSO2, BSO3, BSO4, BSO5, BSO6, BSO7, and BSO8 are 5% to 95% one-to-two optical power splitting devices. The first optical output terminals of beam splitters BSO1, BSO2, BSO3, BSO4, BSO5, BSO6, BSO7, and BSO8 output 5% of the input optical wave energy, which is then input to photodiodes MPD1O, MPD2O, MPD3O, and MPD4O, respectively. The optical input terminals of photodiodes MPD4O, MPD5O, MPD6O, MPD7O, and MPD8O, and the second optical output terminals of beam splitters BSO1, BSO2, BSO3, BSO4, BSO5, BSO6, BSO7, and BSO8 output 95% of the input optical wave energy and input it to the optical output ports O1, O2, O3, O4, O5, O6, O7, and O8, respectively.

9. The eight-channel dual-laser MZI56G chip according to claim 2, characterized in that, The two electrical output terminals of the photodiode MPDI1 are respectively connected to the IPD1+ and IPD1- terminals provided on the silicon photonic modulation chip, and the two electrical output terminals of the photodiode MPDI2 are respectively connected to the IPD2+ and IPD2- terminals provided on the silicon photonic modulation chip. The two electrical output terminals of photodiode MPD1O are respectively connected to the OPD1+ and OPD1- terminals on the silicon photonic modulation chip; the two electrical output terminals of photodiode MPD2O are respectively connected to the OPD2+ and OPD2- terminals on the silicon photonic modulation chip; the two electrical output terminals of photodiode MPD3O are respectively connected to the OPD3+ and OPD3- terminals on the silicon photonic modulation chip; and the two electrical output terminals of photodiode MPD4O are respectively connected to the OPD4+ and OPD4- terminals on the silicon photonic modulation chip. The two electrical output terminals of photodiode MPD5O are respectively connected to the OPD5+ and OPD5- terminals on the silicon photonic modulation chip. The two electrical output terminals of photodiode MPD6O are respectively connected to the OPD6+ and OPD6- terminals on the silicon photonic modulation chip. The two electrical output terminals of photodiode MPD7O are respectively connected to the OPD7+ and OPD7- terminals on the silicon photonic modulation chip. The two electrical output terminals of photodiode MPD8O are respectively connected to the OPD8+ and OPD8- terminals on the silicon photonic modulation chip.

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