Temperature controller for waveguide array grating style channel splitting filter

Abstract

An apparatus, which effects the optical grating mold-match of waveguide array and the temperature control of wave-dividing instrument, relates to the techniques of the optical grating mold-match of waveguide array (AWG) and the temperature control of wave-dividing instrument, comprising: AWG module for multiplexing and de-multiplexing optical signals with multi-wavelengths; temperature collecting module for collecting temperature signals of the AWG module and comparing the signals with setting values: signal processing module for processing the signals collected by the preceding stage and back-fed by the post stage and outputting the result to the driving circuit; driving module for driving and heating AWG module.

Description

technical field [0001] The invention relates to an optical combiner and demultiplexer of optical wavelength division multiplexing equipment in the field of all-optical communication network, in particular to a temperature control of a waveguide array grating (AWG) type combiner and demultiplexer. Background technique [0002] AWG type wave combiner and wave splitter are based on the mechanism that the effect produced by the difference in waveguide length is equivalent to the effect of the blazed grating groove. It is made on the substrate of one or several semiconductor silicon materials or optoelectronic materials (such as LiNbO3). kind of optical waveguide. The refractive index of semiconductor silicon material or optoelectronic material is different at different temperatures, and the wavelength will shift by a certain length every time the temperature rises by one degree. At a certain temperature, the phase delay of light of different wavelengths passing through optical ...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art, such as high price, complex circuit, and difficult debugging, and use a relatively low cost and a relatively simple method to reliably realize the temperature control of the AWG type combiner and splitter, which can have a high cost performance

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