Title :
Polarization-insensitive arrayed-waveguide wavelength multiplexer with birefringence compensating film
Author :
Takahashi, Hiroshi ; Hibino, Yoshinori ; Ohmori, Yasuji ; Kawachi, Masao
Author_Institution :
NTT Corp., Ibaraki, Japan
fDate :
6/1/1993 12:00:00 AM
Abstract :
An integrated-optic polarization-insensitive wavelength multiplexer that is based on an arrayed-waveguide grating is described. Polarization dependence due to thermal stress was eliminated by depositing an a-Si birefringence compensation film on the arrayed-waveguide. The multiplexing operation of 16 wavelength channels with a 0.8 nm spacing was confirmed to be independent of the polarization state.<>
Keywords :
amorphous semiconductors; birefringence; compensation; diffraction gratings; elemental semiconductors; integrated optics; light polarisation; multiplexing equipment; optical films; optical waveguides; semiconductor thin films; silicon; Si; amorphous semiconductor films; arrayed-waveguide; arrayed-waveguide grating; birefringence compensating film; integrated-optic; multiplexing operation; polarisation dependence; polarization state; polarization-insensitive wavelength multiplexer; thermal stress; wavelength channels; Arrayed waveguide gratings; Birefringence; Multiplexing; Optical films; Optical waveguides; Polarization; Silicon; Substrates; Tellurium; Thermal stresses;
Journal_Title :
Photonics Technology Letters, IEEE
