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All fiber coupled mode polarization mode dispersion transfer system and method

A polarization mode dispersion, all-fiber coupling technology, applied in optical fiber transmission, transmission system, coupling of optical waveguides, etc., can solve the problems of high price and difficult production.

Active Publication Date: 2015-08-12
THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, many well-known foreign calibration laboratories such as NIST in the United States and NPL in the United Kingdom are using quartz wave plate stacks to produce coupled mode polarization mode dispersion transfer standards. The mode coupling transfer standards prepared by this scheme mainly include FC / APC fiber optic connectors, The focuser and the wave plate stack are composed of more than 30 1mm-2mm thick quartz wave plates that are glued together to deflect the optical axis at a specific angle. The production is difficult and expensive.

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  • All fiber coupled mode polarization mode dispersion transfer system and method
  • All fiber coupled mode polarization mode dispersion transfer system and method

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Embodiment Construction

[0021] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be noted that the embodiment of the all-fiber coupled mode polarization mode dispersion transfer method according to the present invention is only an example, but the present invention is not limited to this specific embodiment.

[0022] Next, specific embodiments of the present invention will be described in detail with reference to the drawings.

[0023] The existing standard structures for coupled-mode polarization-mode dispersion transfer are as follows: figure 2 As shown, it is mainly composed of FC / APC fiber optic connector, focuser, wave plate stack and aluminum base. The wave plate stack is made of more than 30 quartz wave plates with a thickness of 1 mm to 2 mm to deflect the optical axis at a specific angle. The production is difficult and expensive, and the coupling problem of light must be solved du...

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Abstract

The invention provides a full-optical-fiber coupled mode polarization mode dispersion system, which utilizes a full optical fiber structure and inputs and outputs by an FC / APC (ferrule connector / angled physical contact) standard optical fiber connector. Two ends of the system are single-mode optical fibers with the diameter smaller than 0.5 meter and matched with numerical aperture of a polarization-maintaining optical fiber and provides coupling. N (N>15) sections of 2cm-5cm polarization-maintaining optical fiber are melted according to specific angles so as to simulate polarization mode dispersion in the optical fiber network.

Description

technical field [0001] The invention relates to the field of optical fiber communication, in particular to an all-fiber coupling mode polarization mode dispersion transfer system and method. Background technique [0002] At present, many well-known foreign calibration laboratories such as NIST in the United States and NPL in the United Kingdom are using quartz wave plate stacks to produce coupled mode polarization mode dispersion transfer standards. The mode coupling transfer standards prepared by this scheme mainly include FC / APC fiber optic connectors, The focuser and the wave plate stack are composed of more than 30 1mm-2mm thick quartz wave plates that are bonded to deflect the optical axis at a specific angle. The production is difficult and expensive. [0003] In response to these shortcomings, we use polarization-maintaining fiber instead of the quartz wave plate stack to invent an all-fiber coupled mode polarization mode dispersion transfer standard. The performance ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/25G02B6/27H04B10/2569
Inventor 王恒飞全治科应承平
Owner THE 41ST INST OF CHINA ELECTRONICS TECH GRP