Title :
A temperature insensitive InGaAsP-InP optical filter
Author :
Tanobe, H. ; Kondo, Y. ; Kadota, Y. ; Yasaka, H. ; Yoshikuni, Y.
Author_Institution :
NTT Opto-Electron. Labs., Kanagawa, Japan
Abstract :
A temperature insensitive optical filter (TIOF) with InGaAsP-InP material system is proposed. Less than 0.1 /spl Aring///spl deg/C temperature dependence is achieved for the first time even though we used the InGaAsP-InP material system. By changing the optimum structure of the TIOF, blue-shift temperature characteristics are also obtained. These two novel phenomena are in good agreement with the TIOF design principle.
Keywords :
III-V semiconductors; Mach-Zehnder interferometers; gallium arsenide; gallium compounds; indium compounds; optical communication equipment; optical design techniques; optical waveguide filters; sensitivity; spectral line shift; wavelength division multiplexing; InGaAsP-InP; InGaAsP-InP material; InGaAsP-InP optical filter; TIOF design principle; blue-shift temperature characteristics; optimum structure; temperature dependence; temperature insensitive; Buildings; Fluctuations; Optical filters; Optical materials; Optical waveguides; Semiconductor materials; Semiconductor waveguides; Temperature dependence; Waveguide transitions; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
