Title :
Silica-based PLC demultiplexer with spectral modulation function for monitoring signal wavelengths
Author :
Tanaka, T. ; Ooba, N. ; Kamei, S. ; Fujiwara, M. ; Suzuki, H. ; Shibata, T. ; Inoue, Y.
Author_Institution :
NTT Corp., Atsugi
Abstract :
A 100 GHz-spacing 48-channel planar lightwave circuit (PLC)-type demultiplexer with a spectral modulation function for monitoring signal light wavelengths is reported. The demultiplexer is composed of a Mach-Zehnder interferometer (MZI) and two arrayed-waveguide gratings. Its centre wavelength can be shifted more than 100 Hz with a modulating signal applied to a thermo-optic heater on the MZI section.
Keywords :
Mach-Zehnder interferometers; demultiplexing equipment; diffraction gratings; heating; optical modulation; optical planar waveguides; silicon compounds; thermo-optical devices; wavelength division multiplexing; Mach-Zehnder interferometer; arrayed-waveguide gratings; frequency 100 GHz; planar lightwave circuit demultiplexer; signal light wavelength monitoring; signal wavelength monitoring; silica; spectral modulation function; thermo-optic heater;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20072274
