Polysilane/Polysilazane Composite: Novel Material for Optical Waveguides and Its Application to Mode-Conversion Filters

Autor:	Tsuyoshi Fujiki, Hirochika Nakajima, Shigeru Yamaki, Nobuyasu Tanabe, Hiroshi Mataki, Shin Ichi Kawasaki, Hideaki Okayama
Rok vydání:	2004
Předmět:	Materials science Infrared business.industry Composite number General Engineering General Physics and Astronomy Polysilazane chemistry.chemical_compound Optics chemistry Etching Wavelength-division multiplexing Polysilane Optoelectronics Photonics business Refractive index
Zdroj:	Japanese Journal of Applied Physics. 43:5857
ISSN:	1347-4065 0021-4922
DOI:	10.1143/jjap.43.5857
Popis:	Polysilane/polysilazane (PS/PSz) composite is proposed as a novel material for optical waveguides. A refractive index change, as large as about 4.5%, can be induced and automatically built in only by UV exposure without etching and/or development due to a photochemical reaction, generally known as “photobleaching”. To verify the practical performance of the PS/PSz composite for photonic devices with refractive-index-modulated structures, we fabricated optical waveguide mode-conversion filters using polymethylphenylsilane (PMPS)/perhydropolysilazane (PHPSz) composite, and successfully demonstrated its operation in both visible (633 nm) and infrared (1310 nm) wavelength ranges. The result shows that the PS/PSz composite is a promising candidate not only for optical waveguide devices such as those used in CWDM applications, but also for optical interconnections.
Databáze:	OpenAIRE
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