Optical fiber parameter calculating method and device, full-optical phase regeneration device and PSA

A calculation method and technology of optical fiber parameters, applied in optics, nonlinear optics, instruments, etc., can solve the problem of high energy consumption of PSA

Active Publication Date: 2016-08-17
SUZHOU UNIV
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  • Description
  • Claims
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Problems solved by technology

[0006] In view of this, the present invention provides a method and device for calculating optical fiber parameters, an all-optical phase regeneration device, and a PSA to solve the problem that in the prior art, in order to obtain a stepped phase response, the GER of the PSA must be increased, thereby reducing the energy consumption of the PSA. higher question

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  • Optical fiber parameter calculating method and device, full-optical phase regeneration device and PSA
  • Optical fiber parameter calculating method and device, full-optical phase regeneration device and PSA
  • Optical fiber parameter calculating method and device, full-optical phase regeneration device and PSA

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Embodiment 1

[0076] An embodiment of the present invention provides a method for calculating optical fiber parameters, the optical fiber parameters are used to make optical fibers, and the optical fibers are used in phase-sensitive amplifiers.

[0077] Such as Figure 2a As shown, is a schematic diagram of the amplification effect of the phase insensitive amplifier. The gain of the phase insensitive amplifier has no relationship with the phase of the input light wave signal, and its amplification effect is the same in all phases.

[0078] Such as Figure 2b Shown is a schematic diagram of the amplification effect of a phase-sensitive amplifier (PSA). The gain of the phase-sensitive amplifier is related to the phase of the input light wave signal. It amplifies the in-phase signal and attenuates the quadrature-phase signal. In order to achieve ultra-low noise optical amplification, it can also achieve the compression of noise in a certain phase direction (such as binary phase shift keying s...

Embodiment 2

[0133] This embodiment provides an optical fiber parameter calculation device, such as Figure 10 As shown, it includes a numerical model building unit 5 , a first calculation unit 1 , a second calculation unit 2 , a third calculation unit 3 and a fourth calculation unit 4 connected in sequence.

[0134] Establishing a numerical model unit 5, configured to establish a 7-wave numerical model, the 7-wave numerical model is based on the signal light wave, the first pump light wave, and the second pump light wave, and the signal light wave, the first pump light wave, and the Four sideband idle lights generated by four-wave mixing of the second pump light wave in the optical fiber.

[0135] It should be noted that the numerical model establishment unit 5 includes an acquisition unit 51 and a numerical model establishment subunit 52 .

[0136] The acquisition unit is used to acquire 7 waves, and the 7 waves are respectively the angular frequency ω s The signal light wave, angular ...

Embodiment 3

[0149] This embodiment provides an all-optical phase regeneration device, such as Figure 11 As shown, it includes a laser 111, an optical comb generator 112, a programmable optical filter 113, a coupler 114 and a phase sensitive amplifier (PSA) 115 connected in sequence;

[0150] The emission frequency of laser 111 is f s After the continuous light wave, the frequency will be f s The continuous light waves of are input into the optical comb generator 112 to generate a series of phase-correlated optical combs, from which the frequency f s The continuous light is used for data loading, and two phase-correlated lights centered on it with a wavelength of 3.5 nm are used as pumping light waves, and the power and phase of the two pumping light waves are adjusted in the programmable optical filter 113 . Finally, the signal light wave and the pump light wave are coupled into the PSA115 for all-optical phase regeneration, and finally the phase-regenerated signal is filtered out as t...

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Abstract

The invention provides an optical fiber parameter calculating method and device, and aims to obtain optical fiber parameters via calculation. The invention further provides a phase sensitive amplifier and a full-optical phase regeneration device, wherein the phase sensitive amplifier is used for regeneration of full-optical phase; the involved optical fiber is obtained by using the calculating method and the calculating device. The optical fiber parameter calculating method comprises the following steps: acquiring signal optical waves, first pumping optical waves and second pumping optical waves, performing four-wave mixing in an optical fiber of double-pump degeneracy PSA so as to generate four sideband-idle optical waves, establishing a 7-wave value model, and dissolving a coupling equation of the signal optical waves, and calculating so as to obtain vibration amplitude phase of the regenerated optical waves; adjusting non-linear phase shift and optical second-order dispersion coefficients, so as to obtain the minimum and optimal optical second-order dispersion coefficient corresponding to non-linear phase shift. The optical fiber is manufactured according to the parameter, the optical fiber is applied to PSA, then the PSA has relatively large GER and works in relatively small non-linear phase shift, and furthermore, a regeneration device of low power consumption and full optical phase can be obtained.

Description

technical field [0001] The invention relates to the technical field of all-optical phase regeneration, in particular to an optical fiber parameter calculation method and device, an all-optical phase regeneration device and a PSA (phase sensitive amplifier). Background technique [0002] With the rapid development of my country's economic entities and the continuous improvement of network infrastructure, my country's Internet demand for bandwidth has maintained a long-term high-speed growth. In recent years, the rapid growth of various network services such as data centers, cloud computing, Internet commerce, and video has accelerated the demand for upgrading the capacity of optical fiber communication networks. The demand for high capacity drives the development of optical fiber communication from Mb / s single-channel point-to-point communication system to Gb / s wavelength division multiplexing point-to-point communication system and Tb / s intelligent all-optical network commun...

Claims

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Application Information

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IPC IPC(8): G02F1/35G02F1/365G02F1/39
CPCG02F1/3538G02F1/365G02F1/395
Inventor 高明义钱佳沁沈纲祥
Owner SUZHOU UNIV
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