Optical semiconductor device

摘要

A package for hermetically sealing a semiconductor laser which outputs light having a wavelength of 1.1 mum or more is filled with a gas containing an oxidizing gas such as oxygen or ozone. The oxidizing gas in the package oxidizes hydrogen in the package to prevent hydrogen embrittlement of electrodes that applies stress on electrodes and to suppress variation in the emission wavelength which would otherwise result from the application of stress.