All-optical steep photoswitch with second-order coupling dispersion and active nonlinear birefringence optical fiber coupler

A birefringent optical fiber and nonlinear coupling technology, applied in the field of optical information, can solve the problems of receiver sensitivity drop, affecting the quality of signal transmission equipment, and not conducive to effective signal transmission, etc.

Active Publication Date: 2019-09-10
HANGZHOU DIANZI UNIV
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Problems solved by technology

This situation will lead to a decrease in the sensitivity of the receiver, which will affect the quality of the signal transmission equipment and is not conducive to the effective transmission of the signal

Method used

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  • All-optical steep photoswitch with second-order coupling dispersion and active nonlinear birefringence optical fiber coupler
  • All-optical steep photoswitch with second-order coupling dispersion and active nonlinear birefringence optical fiber coupler
  • All-optical steep photoswitch with second-order coupling dispersion and active nonlinear birefringence optical fiber coupler

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings, so that the technical solution of the present invention is clearer and clearer.

[0022] Such as figure 1 As shown, this embodiment relates to an all-optical steep optical switch with second-order coupling dispersion and active nonlinear birefringent fiber coupler, including the following components:

[0023] Continuous conductor laser 1, polarizer 2, optical modulator 3, optical amplifier 4, polarization controller 5, nonlinear coupler 6, first optical filter 7-1, second optical filter 7-2, first A polarizer 8-1 and a second polarizer 8-2. The optical switch of the coupler adopts a symmetrical structure design, and uses the change of the optical power of the pulse itself to realize the switching of information.

[0024] The connection relationship of the specific composition of this all-optical steep optical switch is: the a port of the conductor laser 1 is connected ...

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Abstract

The invention discloses an all-optical steep photoswitch with a second-order coupling dispersion and active nonlinear birefringence optical fiber coupler. The all-optical steep photoswitch is characterized by comprising a continuous conductor laser (1), a polarizer (2), an optical modulator (3), an optical amplifier (4), a polarization controller (5) and a nonlinear coupler (6), wherein the continuous conductor laser (1), the polarizer (2), the optical modulator (3), the optical amplifier (4) and the polarization controller (5) are sequentially connected; the polarization controller (5) is connected with a first port of the nonlinear coupler (6); and after the continuous laser (1) generates an optical carrier, polarized light is generated by the polarizer (2), after the polarized light ismodulated by the modulator (3), a pulse sequence is generated, and after the pulse sequence is amplified by the optical amplifier (4), the amplified pulse sequence is input into the polarization controller (5) and then is injected into the nonlinear coupler (6).

Description

technical field [0001] The invention belongs to the technical field of optical information, and in particular relates to an all-optical steep optical switch with second-order coupling dispersion and active nonlinear birefringence fiber coupler. Background technique [0002] The modern communication network is an electro-optical network composed of electronic devices such as switches and routers connected to the optical fiber loop. Therefore, it is easily affected by the slow response of electronic equipment in the original network. The inherent "electronic bottleneck" of this electro-optical network greatly limits the network throughput. For this reason, the all-optical network emerges at the historic moment. All-optical network (AON All Optical Network) means that the signal only undergoes electrical / optical and optical / electrical conversion when it enters and exits the network, and it always exists in the form of light during transmission and exchange in the network. The...

Claims

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Application Information

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IPC IPC(8): G02F1/35G02F1/365
CPCG02F1/3521G02F1/365
Inventor 李齐良邓跃平包小彬吴婷胡淼周雪芳曾然唐向宏
Owner HANGZHOU DIANZI UNIV
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