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Optical soliton generation device based on passive mode-locked ytterbium-doped fiber laser

A technology of ytterbium-doped optical fiber and generating device, which is applied in the direction of lasers, laser components, phonon exciters, etc., can solve the problems of poor repeatability and single-form optical solitons, and achieve the effect of fast switching speed

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

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Problems solved by technology

[0007] 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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  • Optical soliton generation device based on passive mode-locked ytterbium-doped fiber laser
  • Optical soliton generation device based on passive mode-locked ytterbium-doped fiber laser
  • Optical soliton generation device based on passive mode-locked ytterbium-doped fiber laser

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Embodiment 1

[0024] The overall structure of the system in Embodiment 1, the preferred parameters of each component have been marked in brackets behind the component.

[0025] The common input end of 1×N optical switch 2 (the model of MFOS-12-9 / 125-S-1060-3U produced by OZ-OPTICS Company) passes through the common input terminal with polarization controller 1 (produced by OZ-OPTICS Company) HFPC-11-1064-S-9 / 125-3U all-fiber polarization controller) single-mode fiber and 1×2 optical coupler 11 (manufactured by OZ-OPTICS, model is FUSED-12-1064-7 / 125 -90 / 10-3U-3mm, the splitting ratio is 90:10), and 90% of the output ends of the 1×N optical switch 2 are connected to each other, and the N output ends of the 1×N optical switch 2 are respectively connected to the 1 The N input ends of ×N optical coupler 4 (the optical fiber coupler whose model is FUSED-12-1060-7 / 125-50 / 50-3U-3mm produced by OZ-OPTICS company) are connected, and the optical fiber group 3 It is composed of N ordinary single-mode...

Embodiment 2

[0026] Embodiment 2 An embodiment that can generate double solitons (ordinary solitons and dissipative solitons)

[0027] Such as figure 1 As shown, in this embodiment, N is set to 2, and the first path of light provides the energy for the energy level transition of the ytterbium-doped fiber, and the propagation direction of this path of light is in figure 1 The center is counterclockwise, and it is emitted by the pump light source 9 (LC962U pump source of OCLARO Company, the center wavelength is 980nm, and the maximum single-mode output optical power is 750mW). 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 from COMCORE), and the laser light emitted by the pump light source is introduced into the fiber resonator. The common end of the optical wavelength division multiplexer 8 is connected to the ytterbium-doped fiber 7 (FIBERCORE company DF1100 ytterbium-dope...

Embodiment 3

[0031] Embodiment 3 An embodiment that can generate 8 kinds of ordinary optical solitons

[0032] refer to figure 1 And embodiment 1, in this embodiment, N is 8. The dispersion compensating fiber 5 in the embodiment 1 is changed from 6m to 5m, and the type is unchanged; the ytterbium-doped optical fiber 7 is changed from 0.5m to 0.4m, and the type is unchanged; 1×8 all-fiber optical switch whose model is MFOS-18-9 / 125-S-1060-3U (manufactured by OZ-OPTICS); 1×N optical coupler 4 is changed from 1×2 optical coupler to model SP -1064nm-AV-1×8-S302 (manufactured by BC-OPTICS) 1×8 optical coupler; fiber group 3 is composed of 2 ordinary single-mode fibers and changed to 8 ordinary single-mode fibers, and the fiber type remains unchanged , and the lengths are 2m, 2.25m, 2.5m, 2.75m, 3m, 3.25m, 3.5m, 3.75m; other devices and connection methods remain unchanged, and an 8 kinds of common soliton generating devices can be formed.

[0033] When 1*8 optical switch 2 is used to select o...

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Abstract

The invention belongs to the technical field of photoelectric equipments, in particular to a device capable of generating various optical solitons. The optical soliton generation device based on a passive mode-locked ytterbium-doped fiber laser comprises a polarization controller (1), a 1*N optical switch (2), an optical fiber group (3), a 1*N optical coupler (4), a dispersion compensation fiber (5), an optical isolator (6), a ytterbium-doped fiber, a light wavelength division multiplexing (8), a pump light source (9), a saturable absorber (10) and a 1*2 optical coupler (1). In the same passive mode-locked ytterbium-doped fiber laser system, the optical soliton generation device based on the passive mode-locked ytterbium-doped fiber laser is capable of obtaining parabolic dissipative soliton single-pulse optical solitons, hyperbolic secant-shaped soliton single-pulse optical solitons, bounded multi-soliton optical solitons of the two optical pulses and other optical solitons; when switching between different types of solitons, a user does not need to change a light path structure, and the switching speed is very fast.

Description

technical field [0001] The invention belongs to the technical field of optoelectronic equipment, in particular to a device capable of generating multiple optical solitons. 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 communication with a bit error rate lo...

Claims

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Application Information

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IPC IPC(8): H01S3/067H01S3/098H01S3/11
Inventor 吴戈高博田小建于思瑶
Owner JILIN UNIV
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