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A Soliton Generation System Based on Black Phosphorus Saturable Absorber

A saturable absorption, optical soliton technology, used in lasers, phonon exciters, laser parts and other directions, can solve problems such as central wavelength instability

Inactive Publication Date: 2020-05-22
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the defect that the central wavelength of the optical soliton generated by the existing optical soliton generation system is easily affected by environmental parameters and cause the central wavelength to be unstable, the present invention provides an optical soliton generation system with a stable central wavelength. When the central wavelength of the soliton shifts, the present invention uses a compensation circuit to suppress the influence of the external environment, thereby keeping the central wavelength of the optical soliton generated by the system unchanged, thereby improving the stability of the central wavelength of the optical soliton

Method used

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  • A Soliton Generation System Based on Black Phosphorus Saturable Absorber
  • A Soliton Generation System Based on Black Phosphorus Saturable Absorber
  • A Soliton Generation System Based on Black Phosphorus Saturable Absorber

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Embodiment 1

[0031] Embodiment 1 Overall structure of the present invention

[0032] like figure 1 As shown, the overall structure of the present invention has, the input end of polarization controller 1 (HFPC-11-1064-S-9 / 125-3U all-fiber polarization controller produced by OZ-OPTICS Company) and the first optical coupler 11 (produced by OZ-OPTICS company, the model is FUSED-12-1064-7 / 125-90 / 10-3U-3mm, the splitting ratio is 90:10) is connected to the 90% output end, and the output end of polarization controller 1 is connected to 1 The common input terminals of ×N optical switch 2 (the model of MFOS-12-9 / 125-S-1060-3U produced by OZ-OPTICS Company) are connected to the common input terminals, and the N output terminals of 1×N optical switch 2 Respectively through N different single-mode optical fibers in the optical fiber group 3 (SM1500 ordinary single-mode optical fiber of FIBERCORE Company) and 1×N optical coupler 4 (the model produced by OZ-OPTICS Company is FUSED-12-1060-7 / 125-50 / 5...

Embodiment 2

[0033] Embodiment 2 Center wavelength tuning device

[0034] like figure 2As shown, the structure of the central wavelength tuning device 6 is that a semiconductor thermoelectric cooler 64 (TEC12705) is sandwiched between the lower surface of the aluminum block 61 and the upper surface of the heat sink 65; the thermistor 63 (10kΩ@ 25°) and the Bragg grating 62 (JH-FGA-A101) are pasted on the upper surface of the aluminum block 61; the thermistor 63 is connected with the thermistor input end of the temperature control circuit 22; the semiconductor thermoelectric cooler 64 is connected with the temperature control circuit The current output end of 22 is connected; One end of Bragg grating 62 is connected with the second port of optical circulator 66 (the PIOC3-15 optical circulator that THORLABS company produces), and the first port of optical circulator 66 is used as center wavelength tuning device 6 The input end is connected to the black phosphorus saturable absorber 5 , an...

Embodiment 3

[0035] Embodiment 3 function conversion circuit

[0036] The structure of the function conversion circuit 18 is that one end of the capacitor C3 is connected to the pin 12 of the trigonometric function converter U1 and one end of the resistor R2, and the other end of the capacitor C3 is used as the input terminal of the function conversion circuit 18, which is denoted as the port ACOS_in , connected to the output end of the photoelectric conversion circuit 17; the other end of the resistor R2 is grounded; the pins 2, 3, 4, 5, 8, 11, 13 of the trigonometric function converter U1 are grounded, and the pins 9, 10 are connected to the capacitor C2 One end is connected to -12V power supply, the other end of capacitor C2 is grounded; pin 6 of trigonometric function converter U1 is connected to pin 7, pin 16 is connected to +12V power supply and one end of capacitor C1, and the other end of capacitor C1 is grounded; The pin 1 of the trigonometric function converter U1 is connected to...

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Abstract

The invention provides an optical soliton generation system based on a black phosphorus saturable absorber, and belongs to the technical field of photoelectronic equipment. The main structure of the optical soliton generation system comprises a polarization controller (1), 1*N optical switches (2), an optical fiber group (3), 1*N optical couplers (4), the saturable absorber (5), a center wavelength tuning device (6) and the like. According to the optical soliton generation system, multiple different types of optical solitons can be generated, use is convenient, and the output optical soliton center wavelength is stable when environmental parameters change.

Description

technical field [0001] The invention belongs to the technical field of optoelectronic equipment, in particular to an optical soliton generation system based on a black phosphorus saturable absorber. Background technique [0002] Optical solitons are a special form of ultrashort light pulses that maintain their shape, amplitude and speed during propagation. The characteristics of optical solitons determine that it has a wide range of application prospects in the field of communication. First, its communication capacity is large: the transmission code rate can generally reach 20Gb / s, and the highest can reach more than 100Gb / s. Secondly, it has low bit error rate and anti-interference ability. Strong: Optical solitons remain unchanged during transmission and the adiabatic characteristics of optical solitons determine that the bit error rate of optical soliton transmission is much lower than conventional optical fiber communication, and even error-free optical fiber communicati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/13H01S3/04H01S3/067
CPCH01S3/0405H01S3/067H01S3/1305
Inventor 高博霍佳雨汝玉星吴戈
Owner JILIN UNIV