Production process of grating type high-isolation wavelength division multiplexer

Abstract

The invention discloses a production process of a grating type high-isolation wavelength division multiplexer. The production process comprises the following steps: respectively stripping bare optical fibers with certain lengths from one end of an optical fiber A and one end of an optical fiber B; bare optical fiber parts of the optical fiber A and the optical fiber B are parallelly and tightly placed on the middle protection tube, and the optical fiber A and the optical fiber B are respectively pressed on the V-shaped groove I and the V-shaped groove II through magnet pieces; the other end of the optical fiber A penetrates through the precise connector, is accommodated on the optical fiber shaft and is connected with the monitoring light source; taking one end of the auxiliary optical fiber I and one end of the auxiliary optical fiber II, stripping bare fibers with a certain length, placing the stripped bare fibers and the bare fibers of the optical fibers A and B in parallel, and respectively placing the bare fibers and the bare fibers in an inner groove and an outer groove of an optical fiber coupler tapering machine; the other ends of the auxiliary optical fiber I and the auxiliary optical fiber II are respectively connected to a platform monitoring channel I and a platform monitoring channel II; and after optical fiber preparation and placement are completed, welding is started, and if device parameter indexes conform to specifications, direct packaging can be carried out. Compared with a traditional wavelength division multiplexer, the insertion loss of the wavelength division multiplexer can reach 0.3 dB.

Description

technical field [0001] The invention relates to a grating-type high-isolation wavelength division multiplexer, in particular to a production process for a grating-type high-isolation wavelength-division multiplexer. Background technique [0002] With the rapid development of data services, the speed of network integration is accelerating, the research, development and application of WDM technology are very active, and the pressure of market competition makes operators more sensitive to network costs (including construction costs and operation and maintenance costs). Operating companies have started to use WDM technology to transform the existing optical transmission network. In principle, wavelength division multiplexing technology is a technology that simultaneously transmits multi-wavelength optical signals in one optical fiber. The basic principle is to combine (multiplex) optical signals of different wavelengths at the sending end, and couple them to the same optical fi...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the traditional wavelength division multiplexer has a complicated structure and needs to be composed of 6 materials, and provides a production process of a grating type high-isolation wavelength division multiplexer, which can meet the traditional wavelength division multiplexing On the basis of standard device, the signal is more stable

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