Study on fabrication technology of silicon-based silica array waveguide grating

Yanjun Sun; Lianhe Dong; Yanbing Leng

doi:10.1117/12.830885

20 May 2009 Study on fabrication technology of silicon-based silica array waveguide grating

Yanjun Sun, Lianhe Dong, Yanbing Leng

Proceedings Volume 7282, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 72821R (2009) https://doi.org/10.1117/12.830885
Event: AOMATT 2008 - 4th International Symposium on Advanced Optical Manufacturing, 2008, Chengdu, Chengdu, China

Abstract

Array waveguide grating (AWG) is an important plane optical element in dense wavelength division multiplex/demultiplex system. There are many virtue, channel quantity larger,lower loss, lower crosstalk, size smaller and high reliability etc. This article describs AWG fabrication technics utilizing IC(Integrated Circles) techniques, based on sixteen channel Silicon-Based Silica Array Waveguide Grating, put emphasis on discussing doping and deposition of waveguide core film,technics theory and interrelated parameter condition of photoetch and ion etching. Experiment result indicates that it depens on electrode structure, energy of radio-frequency electrode gas component, pressure ,flowing speed and substrate temperature by CVD depositing film .During depositing waveguide film by PE-CVD, the silicon is not reacted, When temperature becomes lower,it is reacted and it is easy to realize the control of film thickness and time with a result of film thickness uniformity reaching about 4% after optimizing deposition parameter and condition. We get the result of high etching speed rate, outline zoom, and side frame smooth by photoresist/Cr multiple mask and optimizing etching technics.

Citation Download Citation

Yanjun Sun, Lianhe Dong, and Yanbing Leng "Study on fabrication technology of silicon-based silica array waveguide grating", Proc. SPIE 7282, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 72821R (20 May 2009); https://doi.org/10.1117/12.830885

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KEYWORDS

Waveguides

Silica

Coating

Etching

Silicon

Refractive index

Photoresist materials

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