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Auxiliary axis aligning observation device of polarization maintaining fiber demultiplexer

A polarization-maintaining fiber and observation device technology, applied in the directions of light guides, optics, instruments, etc., can solve problems such as alignment errors and image recognition difficulties, and achieve the effects of improving accuracy, realizing automatic axis alignment, and simple structure.

Inactive Publication Date: 2016-06-15
NANJING JILONG OPTICAL COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But side view image recognition is more difficult, and there are certain errors in alignment

Method used

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  • Auxiliary axis aligning observation device of polarization maintaining fiber demultiplexer
  • Auxiliary axis aligning observation device of polarization maintaining fiber demultiplexer

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Embodiment Construction

[0011] Embodiments of the present invention are described in detail below in conjunction with the accompanying drawings:

[0012] Polarization-maintaining fiber optic splitter alignment auxiliary observation device, such as figure 1 As shown, it includes a microscope 3 and a CCD image sensor 4. The microscope 3 has two objective lenses 31 parallel to each other. The plane of the objective lens 31 is parallel to the end face of the optical fiber 1. The microscope 3 is fixed on the optical fiber output end of the taper machine 2. The microscope 3 Connected with the CCD image sensor 4, the optical fiber input end and the optical fiber output end of the taper machine 2 have rotating fixtures 21.

[0013] The use process is as follows: fix the two optical fibers 1 to be coupled on the rotating fixture 21 of the taper machine 2, inject visible light from the side, connect the output ends of the optical fibers 1 to the two objective lenses 31, adjust the optical fibers 1, and make th...

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Abstract

The invention discloses a polarization-maintaining optical fiber splitter axis auxiliary observation device, which includes a microscope and a CCD image sensor. The microscope has two objective lenses parallel to each other. connect. The invention solves the alignment problem of the polarization-maintaining optical fiber well by using the direct imaging method of the end surface, and has a simple structure, only needs to add a microscope and a CCD image sensor at the output end of the optical fiber, and does not need to use complex systems such as side illumination and video microscope reception; Moreover, the accuracy of alignment is improved, which is beneficial to realize automatic alignment, and can realize accurate alignment for different types of polarization-maintaining optical fibers.

Description

technical field [0001] The invention belongs to the field of optical fiber coupling, in particular to an auxiliary axis observation device in the process of manufacturing a polarization-maintaining optical fiber splitter. Background technique [0002] In the prior art, there are two manufacturing methods for polarization-maintaining optical fiber couplers: one is the cold processing method, which is complex, difficult and demanding, and the resulting couplers are bulky, have poor temperature stability and poor practical value , which has been rarely used at present; the other is the fusion tapered method. At present, the manufacture of polarization-maintaining fiber couplers is mostly done manually through the fusion tapered method, that is, the coating layer of the middle part of the two optical fibers with a length of about 20mm is peeled off. , clean, observe the alignment axis sideways with a microscope, and then place it on a special micro torch for melting and tapering...

Claims

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Application Information

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IPC IPC(8): G02B6/255
CPCG02B6/2555
Inventor 吴超严迎军董辉
Owner NANJING JILONG OPTICAL COMM