Switching Characteristics in Variable-Index Arrayed Waveguides Using Thin-Film Heater

Satoshi YANAGI; Yosuke MURAKAMI; Yuki YAMAZAKI; Kazuhiko SHIMOMURA

doi:10.1587/transele.E95.C.1265

Special Section on Recent Progress in Active Photonic Device Technologies

Switching Characteristics in Variable-Index Arrayed Waveguides Using Thin-Film Heater

Satoshi YANAGI, Yosuke MURAKAMI, Yuki YAMAZAKI, Kazuhiko SHIMOMURA

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Keywords: arrayed waveguides, multiple quantum well (MQW), metal-organic vapor phase epitaxy (MOVPE), wavelength switch, thermo-optic effect

JOURNAL RESTRICTED ACCESS

2012 Volume E95.C Issue 7 Pages 1265-1271

DOI https://doi.org/10.1587/transele.E95.C.1265

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Abstract

We have demonstrated switching characteristics in a wavelength switch based on multiple GaInAs/InP quantum wells. It consisted of straight arrayed waveguides with a linearly varying refractive index distribution. The refractive index can be changed via the thermo-optic (TO) effect. Using a Ti/Au thin-film heater to generate the TO effect, we realized four-port switching at four demultiplexed wavelengths. In addition, by changing the structure of the heater from rectangular to triangular, the power consumption for four-port switching was reduced by half.

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