Title :
10 GHz-spaced arrayed-waveguide grating multiplexer with phase-error-compensating thin-film heaters
Author :
Yamada, H. ; Takada, K. ; Inoue, Y. ; Hibino, Y. ; Horiguchi, M.
Author_Institution :
NTT Opto-Electron. Labs., Ibaraki, Japan
fDate :
3/2/1995 12:00:00 AM
Abstract :
An arrayed-waveguide grating multiplexer with thin-film heaters is fabricated to compensate for phase errors in arrayed waveguides. The phase errors are measured by Fourier transform spectroscopy with a low-coherence interferometer and are used as a monitor when we adjust the phases by controlling thin-film heaters. A channel crosstalk of -25 dB and a loss of 4.2 dB are achieved in a 5×5 10 GHz-spaced multiplexer
Keywords :
Fourier transform spectroscopy; electric heating; error compensation; integrated optics; light interferometry; multiplexing equipment; optical communication equipment; optical crosstalk; optical losses; optical waveguides; 4.2 dB; Fourier transform spectroscopy; arrayed-waveguide grating multiplexer; channel crosstalk; compensating thin-film heaters; loss; low-coherence interferometer; phase error compensation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950230
