PACKAGING AND ENVIRONMENTAL STABILITY OF THERMALLY CONTROLLED ARRAYED-WAVE-GUIDE GRATING MULTIPLEXER MODULE WITH THERMOELECTRIC DEVICE

We designed and fabricated arrayed-waveguide grating (AWG) modules wit h thermoelectric (TE) devices, and investigated their wavelength contr ollability and stability, The fabricated AWG's had 16 channels with a spacing of 0.8 nm in the 1.55 mu m band, We confirmed that the center wavelength could be kept constant in a precise 0.02 nm range at ambien t temperatures from -10 to 70 degrees C and moreover could be tuned ov er a 0.35 nm range, We performed environmental tests with reference to the Bellcore requirements, These results confirmed both the stability of the AWG module under severe conditions and its mechanical strength .