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Multi-type optical soliton generation system composed of dispersion-compensation optical fiber group

A dispersion compensation and generation system technology, applied in the direction of phonon exciters, lasers, laser components, etc., can solve the problems of single-form optical solitons, poor repeatability, etc., and achieve stability and repeatability, and fast switching speed Effect

Inactive Publication Date: 2014-09-10
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing optical soliton generation system that can only produce single-form optical solitons and poor repeatability, and provide a method that can generate multiple types of optical solitons, and is convenient to switch between different types of optical solitons. Optical soliton generation device with consistent parameters and stable results

Method used

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  • Multi-type optical soliton generation system composed of dispersion-compensation optical fiber group
  • Multi-type optical soliton generation system composed of dispersion-compensation optical fiber group
  • Multi-type optical soliton generation system composed of dispersion-compensation optical fiber group

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Embodiment 1

[0022] The overall structure of the system in Embodiment 1, the preferred parameters of each component have been marked in brackets behind the component.

[0023] The common input end of 1×N optical switch 1 (the model of MFOS-12-9 / 125-S-1060-3U produced by OZ-OPTICS Company) is connected to the common input port of 1×2 optical coupler 11 (Gould Fiber Optics Produced by the company, the model is 22-1-27-98-20-1×2-12-FC / PC-1, the splitting ratio is 80:20), and 80% of the output terminals of 1×N optical switch 1 are connected. The output end passes through N dispersion compensating fibers of different lengths in the dispersion compensating fiber group 2 (DCF38 dispersion compensating fiber of THORLABS company) and 1×N optical coupler 3 (the model produced by OZ-OPTICS company is FUSED-12-1060 -7 / 125-50 / 50-3U-3mm fiber coupler) N input ports are connected, and the common output port of 1×N optical coupler 3 passes through saturable absorber 4 (Germany BATOP company SA-1064-25 -2...

Embodiment 2

[0024] Embodiment 2 An embodiment that can generate double solitons (ordinary solitons and dissipative solitons)

[0025] like figure 1 As shown, in this embodiment, N is taken as 2, and the first path of light provides the energy for energy level transition to the ytterbium-doped fiber, and the propagation direction of this path of light is in figure 1The center is counterclockwise, and it is emitted by the pump light source 9 (I0980SB0500PA pump source from Innovative Photonic Solutions, the maximum single-mode output optical power is 500mW, and the center wavelength is 980nm). The pump light source 9 is connected to the 980nm end of the optical wavelength division multiplexer 8 (980-1060nm single-mode fiber wavelength division multiplexer of Shenzhen Flyin Optronics Company), and the laser light sent by the pump light source is introduced into the fiber resonator cavity of the laser (also that is figure 1 in the loop shown in ). The common end of the optical wavelength d...

Embodiment 3

[0029] Embodiment 3 An embodiment that can generate 8 kinds of ordinary optical solitons

[0030] refer to figure 1 , N is 8 in this embodiment. The ordinary single-mode fiber 5 in the embodiment 1 is changed from 9m to 10m, and the type is unchanged; the ytterbium-doped optical fiber 7 is changed from 0.6m to 0.7m, and the type is unchanged; 1×8 all-fiber optical switch with model number MFOS-18-9 / 125-S-1060-3U (manufactured by OZ-OPTICS); 1×N optical coupler 4 is changed from 1×2 optical coupler to BC- The 1×8 optical coupler produced by OPTICS is SP-1060nm-AV-1×8-S302; the dispersion compensation fiber group 2 is composed of 2 dispersion compensation fibers and changed to 8 dispersion compensation fibers, and the fiber type remains unchanged , and the lengths are 13m, 14m, 15m, 16m, 17m, 18m, 19m, 20m respectively; other devices and connection methods remain unchanged, and an 8 kinds of common soliton generating devices can be formed.

[0031] When the 1×8 optical switch...

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Abstract

The invention belongs to the technical field of the fiber optic lasers and in particular relates to a device capable of generating a plurality of types of optical solitons. The structure of the device comprises a 1*N optical switch (1), a dispersion-compensation optical fiber group (2), a 1*N optical coupler (3), a saturable absorber (4), a single mode optical fiber (5), an optical coupler (6), a ytterbium doped fiber (7), a light wavelength division multiplexer (8), a pump light source (9), an adjustable optical fiber (10) and a 1*2 optical coupler (11). The device is capable of obtaining a plurality of types of optical solitons such as scattered soliton monopulse, ordinary optical soliton monopulse and bound-state multi-solitons of the two optical pulses by selecting the dispersion-compensation optical fibers different in length; the environmental parameters of the system are not changed during switching between different optical pulses, and the device is high in switching speed, convenient to use and good in repeatability.

Description

technical field [0001] The invention belongs to the technical field of fiber lasers, in particular to a device capable of generating multiple types of optical solitons. Background technique [0002] Optical solitons, also known as ultrashort optical pulses, have a very high repetition rate of ordinary optical solitons, generally up to 20GHz, up to 100GHz, and have the ability of conformal transmission. They are ideal optical carriers for the new generation of optical fiber communication systems. The use of optical solitons for optical fiber communication also has the advantages of low bit error rate, long distance without repeaters, and full fiber gain compensation can be used. [0003] In addition to ordinary optical solitons, common optical solitons also have parabolic self-similars. The repetition frequency of this kind of self-similar is relatively low, generally around several hundred megahertz, but its peak power is high and the single pulse energy is large, so it can...

Claims

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Application Information

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IPC IPC(8): H01S3/067H01S3/098H01S3/10
Inventor 吴戈高博田小建于思瑶
Owner JILIN UNIV
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