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All-optical phase regeneration device and method based on double-conjugate pump phase modulation signal

An all-optical phase regeneration, phase modulation signal technology, applied in optics, nonlinear optics, instruments, etc., can solve problems such as high cost, complex structure, and unsuitable for practical applications.

Active Publication Date: 2016-05-04
JIANGSU JINDI ELECTRONICS TECH
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  • Description
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Problems solved by technology

Solution (3) requires an additional injection-locked laser, which has a complex structure and high cost, and is not suitable for practical applications

Method used

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  • All-optical phase regeneration device and method based on double-conjugate pump phase modulation signal
  • All-optical phase regeneration device and method based on double-conjugate pump phase modulation signal
  • All-optical phase regeneration device and method based on double-conjugate pump phase modulation signal

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Embodiment Construction

[0035] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0036] Such as figure 1 The schematic diagram of the system structure of the present invention is shown, and the all-optical phase regeneration device for double-conjugate pumped phase modulation signals based on the optical frequency comb provided by the present invention includes: a pump laser, an optical frequency comb generator, an optical demultiplexer, A first coupler, an erbium-doped fiber amplifier, a second coupler, a first section of HNLF, a wavelength selective switch, a second section of HNLF and an optical bandpass filter.

[0037] The pump laser emits at a frequency f s Laser, through an optical frequency comb generator to generate a series of intervals Δf c The optical frequency comb, the optical demultiplexer filters two optical combs symmetrical to the center frequency from the generated frequency comb, and their frequenc...

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Abstract

The invention discloses a double-conjugation pumping modulating signal all-optical regeneration device based on an optical frequency comb. The all-optical regeneration device comprises a pumping laser device, the optical frequency comb, a photodecomposition multiplexer, a first coupler, erbium-doped optical fibers, a second coupler, a first section of HNLF, a wavelength selective switch, a second section of HNLF and a light bandpass filter. The device can be used for phase position regeneration of various degraded QPSL signals (including DQPSK) in a high-speed optical fiber communication network, so that influence on performance of an optical communication system by phase noise is reduced, the all-optical relay transmission distance is improved, and the error rate of a receiver is reduced. The invention further discloses a double-conjugation pumping modulating signal all-optical regeneration method based on the optical frequency comb. The double-conjugation pumping modulating signal all-optical regeneration device has the advantages of being concise in structure, stable in performance, easy to operate, remarkable in regeneration effect and the like.

Description

technical field [0001] The invention relates to an all-optical phase regeneration technology of a phase modulation signal in the field of high-speed optical fiber communication, in particular to an all-optical phase regeneration device and method for a double-conjugate pump phase modulation signal based on an optical frequency comb. 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 will maintain a long-term high-speed growth. In order to effectively cope with the bandwidth capacity crisis caused by the explosive growth of various applications, various communication technologies have been proposed to break through the bottleneck of traditional optical fiber transmission capacity. Polarization multiplexing, time-division multiplexing, wavelength-division multiplexing, and recently emerging space-division multiplexing have enabled the sin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/35G02F1/37G02F1/39
Inventor 沈平付松年唐明
Owner JIANGSU JINDI ELECTRONICS TECH
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