Title :
16-channel optical add/drop multiplexer consisting of arrayed-waveguide gratings and double-gate switches
Author :
Okamoto, K. ; Okuno, M. ; Himeno, A. ; Ohmori, Y.
Author_Institution :
NTT Opto-Electron. Labs., Ibaraki, Japan
fDate :
8/1/1996 12:00:00 AM
Abstract :
An optical add/drop multiplexer that enables full access to 16 individual wavelength channels has been fabricated on the planar lightwave circuit (PLC). The device consists of four arrayed-waveguide gratings which are connected through 16 double-gate thermo-optic switches. The crosstalk characteristics of the optical switches have been improved by adopting a double-gate configuration. The on-off crosstalks from main input or add port to main output or drop port are less than -28.4 dB and the on-chip insertion losses are 7.8-10.3 dB, respectively
Keywords :
diffraction gratings; multiplexing equipment; optical communication equipment; optical crosstalk; optical planar waveguides; optical switches; optical waveguide components; wavelength division multiplexing; 7.8 to 10.3 dB; arrayed-waveguide grating; crosstalk; double-gate thermo-optic switch; insertion loss; multichannel optical add/drop multiplexer; planar lightwave circuit;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19960981
