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Furukawa Review No.30

Development of Wide Operating Temperature Range (-30~70°C)Athermal AWG Module with High Reliability

Junichi Hasegawa and Kazutaka Nara

Abstract

The authors have clarified the cause of the temperature dependence in athermal Arrayed Waveguide Grating (AWG) modules of conventional type, and have developed a new athermal AWG module of wide operating temperature range having a reduced temperature dependence. The temperature dependence of the center wavelength of the developed module is not more than ±0.015 nm for all channels over a temperature range of -30~70°C. A series of reliability tests have been carried out assuming outdoor installation of the module, and it has been confirmed that the module has extremely high reliability.

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