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Four-port photocirculator

An optical circulator and four-port technology, applied in the field of four-port optical circulators, can solve the problems of high manufacturing cost, large device volume, unstable device, etc., and achieve the effects of less dispersion, small size and good stability

Inactive Publication Date: 2004-09-01
GUANGXUN SCI & TECH WUHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing four-port circulator technical scheme has disadvantages such as complicated process, high manufacturing cost, large device volume, and unstable device.

Method used

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  • Four-port photocirculator
  • Four-port photocirculator
  • Four-port photocirculator

Examples

Experimental program
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Effect test

Embodiment Construction

[0014] The specific embodiment of the present invention will be further described below in conjunction with the accompanying drawings. The four-port circulator is to stick the magnetized Faraday rotator 6, λ / 2 quartz wave plate 7, and λ / 2 quartz wave plate 8 on a non-parallel On the square frame made of magnetic material (such as brass, non-magnetic stainless steel, etc.), λ / 2 quartz wave plate 13, λ / 2 wave plate 14, and Faraday rotator 12 are also glued on the same square frame, beam splitting The optical axis direction of the beam splitter 5 and the beam splitter 15 is the same, and the optical axis of the beam splitter 10 is rotated by 90 degrees relative to the beam splitter 5 or 15. Components 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, and 15 are sequentially placed on a bracket made of a non-paramagnetic material (such as brass, non-magnetic stainless steel), and the bracket is made of 1, 2, 3, 4 and 16, 17, 18, 19 are respectively composed of two double-core collimators package...

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PUM

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Abstract

This invention provides a new technological scheme of a four ports optical circulator containing collimating devices, beam-splitters, Faraday rotators and prisms by adopting two double core collimating devices and a single mode fiber to make up four ports, two same polarized triple prisms are set at both ends of the second birefringent crystal beam splitter and the outgoing angle of the double core collimator is matched with the deviation angle of the triple prism. The place for each set is as follows: single mode fiber, 1, single mode fiber 2, double cores capillary tube 3, collimation lens 4, birefringent crystal beam splitter 5, Faraday rotating plate 6, lambada / 2 wave plate 7, lambada / 2 wave plate 8, polarization triple prism 9, birefringent crystal beam splitter 10, polarization triple prism 11, Faraday rotator 12, lambada / 2 wave piece 13, lambada / 2 wave piece 14, birefringent crystal beam splitter 15, collimating lens 16, double core capillary tube 17.

Description

technical field [0001] The invention relates to a four-port optical circulator, which can only transmit light from one port to two ports, from two ports to three ports, and from three ports to four ports. Background technique [0002] In optical fiber communication, as a non-reciprocal device with multi-port input and output, the optical circulator has the characteristics of forward conduction and reverse blocking, and can complete the separation of forward and reverse transmission light. In bidirectional long-distance trunk communication, dispersion compensation , DWDM and OTDR have been widely used. The four-port circulator can also be applied in the above fields. However, the existing four-port circulator technical solution has disadvantages such as complex process, high manufacturing cost, large device volume, and unstable device. Contents of the invention [0003] The object of the present invention is to design a four-p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/35G02B26/08G02B27/28
Inventor 陈龙罗勇
Owner GUANGXUN SCI & TECH WUHAN