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Multi-wavelength wavelength division multiplexing and demultiplexing optical assembly

A wavelength division multiplexing and multi-wavelength technology, which is applied in the fields of optical communication and 5G, can solve the problems of restricting the number of Z-Block channels, affecting the coupling efficiency of the system, and the parallelism cannot reach high precision, etc., and achieves a mature manufacturing/assembly process , excellent performance and high assembly yield

Pending Publication Date: 2021-10-12
FUZHOU PHOTOP QPTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Under the existing technology, due to certain tolerances in the processing and assembly of the Z-Block, after the optical signals of different wavelengths are separated by the Z-Block, the parallelism between the beams often cannot achieve high precision. The worse the parallelism is, this greatly affects the coupling efficiency of the system, which in turn restricts the number of channels of the Z-Block

Method used

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  • Multi-wavelength wavelength division multiplexing and demultiplexing optical assembly
  • Multi-wavelength wavelength division multiplexing and demultiplexing optical assembly
  • Multi-wavelength wavelength division multiplexing and demultiplexing optical assembly

Examples

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Embodiment 1

[0059] Such as Figures 6 to 9 As shown in one, the multi-wavelength wavelength division multiplexing and demultiplexing optical components of this embodiment include:

[0060] Optical interface component 1, used for inputting or outputting optical signals;

[0061] 1 three-port wavelength division multiplexing and demultiplexing subassembly 2, the three-port wavelength division multiplexing and demultiplexing subassembly 2 has a common port 21 and two branch ports 22, and the common port 21 is used for optical The optical signal input by the interface component is divided into two branch ports 22 for output or the optical signals input by the two branch ports 22 are combined;

[0062] Two Z-Block type wavelength division multiplexing and demultiplexing subassemblies 3 correspond to and connect with the unconnected tributary ports 22 of one three-port wavelength division multiplexing and demultiplexing subassembly 2, and are used to receive The connected three-port wavelengt...

Embodiment 2

[0081] The brief implementation structure diagram of this implementation is as follows Figure 10 shown.

[0082] In this embodiment, compared with Embodiment 1, a three-port wavelength division multiplexing and demultiplexing subassembly 2 and a Z-Block type wavelength division multiplexing and demultiplexing subassembly 3 are added. By connecting two three-port wavelength division multiplexing and demultiplexing subassemblies 2 in series, the wavelength division multiplexing and demultiplexing function of three groups of central wavelength optical signals can be realized; the three groups of central wavelength optical signals can be transmitted through the Z- After the Block structure wavelength division multiplexing and demultiplexing subcomponents, 12 wavelength signals can be demultiplexed.

[0083] The three groups of central wavelengths in this embodiment are respectively:

[0084] The first group: 1511nm, 1531nm, 1551nm, 1571nm;

[0085] The second group: 1271nm, 12...

Embodiment 3

[0090] The three-dimensional schematic diagram and structural schematic diagram of the embodiment of the present invention are respectively as Figure 11 and Figure 12 As shown, the structure diagram of the Z-Block type WDM demultiplexing subassembly 3 with 4 channels is as follows Figure 13 and Figure 14 shown. The implementation structure of this embodiment is basically the same as that of Embodiment 1, and the optical interface assembly 1 and the three-port wavelength division multiplexing and demultiplexing subassembly 2 are all the same as Embodiment 1, except that the transmission unit 36 ​​is replaced by an optical fiber array Right-angle prism, the lens array 35 is glued on the polished end face of the optical fiber array, and the wave-division-multiplexed optical signal after passing through the Z-Block is directly coupled into the optical fiber waveguide of the optical fiber array after passing through the lens array. The optical fiber array can achieve high-pr...

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Abstract

The invention discloses a multi-wavelength wavelength division multiplexing and demultiplexing optical assembly. The optical assembly comprises an optical interface assembly; a standard interface used for transmitting optical signals; N three-port wavelength division multiplexing and demultiplexing sub-assemblies each of which is provided with a common port and two branch ports, wherein the common port is used for shunting the optical signals input by the optical interface assembly into the two branch ports for output or combining the optical signals input by the two branch ports; and the (N+1) Z-Block type wavelength division multiplexing and demultiplexing sub-assemblies which are in one-to-one correspondence and connection with the unconnected branch ports of the N three-port wavelength division multiplexing and demultiplexing sub-assemblies. The optical assembly is high in assembly yield and low in cost, can cover the whole wavelength range from an O wave band to the C and L wave bands, can easily realize the wavelength division multiplexing and demultiplexing of a plurality of (more than or equal to 8) wavelengths, has the advantages of low cost, reliability, small size and the like, can be applied to themulti-wavelength ROSA, TOSA, BOSA and passive WDM devices, and meets the industrial-grade standard requirements in the industry.

Description

technical field [0001] The invention relates to the technical fields of optical communication and 5G, in particular to a multi-wavelength wavelength division multiplexing and demultiplexing optical component. Background technique [0002] Wavelength Division Multiplexing (WDM, Wavelength Division Multiplexing) is to combine two or more optical carrier signals of different wavelengths (carrying various information) at the sending end through a multiplexer (also known as a multiplexer, Multiplexer, MUX for short) Together, and coupled to the same optical fiber of the optical line for transmission; at the receiving end, the optical carriers of various wavelengths are separated by a demultiplexer (also known as a demultiplexer, Demultiplexer, DEMUX for short), and then transmitted by The optical receiver does further processing to recover the original signal. This technology of simultaneously transmitting two or more optical signals of different wavelengths in the same optical ...

Claims

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Application Information

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IPC IPC(8): G02B6/293
CPCG02B6/29389G02B6/2938G02B6/29395
Inventor 贾旭于光龙林应龙
Owner FUZHOU PHOTOP QPTICS CO LTD
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