Title :
16-channel optical add/drop multiplexer using silica-based arrayed-waveguide gratings
Author :
Okamoto, K. ; Takiguchi, K. ; Ohmori, Y.
Author_Institution :
NTT Opto-Electron. Labs., Ibaraki, Japan
fDate :
4/27/1995 12:00:00 AM
Abstract :
An optical add/drop multiplexer (ADM) that enables full access to 16 individual wavelength channels has been fabricated on a planar lightwave circuit (PLC). The device consists of three arrayed-waveguide gratings which are connected by 16 thermo-optic switches. The on-off crosstalk for the main input to the main output port is less than -24 dB and that for the main input to the drop port is about -13 dB. The fibre-to-fibre insertion losses are 7-8 dB and 3-4 dB when signals are coupled to the main input port and to the add port, respectively
Keywords :
diffraction gratings; multiplexing equipment; optical crosstalk; optical losses; optical planar waveguides; photonic switching systems; wavelength division multiplexing; 16-channel multiplexer; 3 to 8 dB; SiO2; arrayed-waveguide gratings; fibre-to-fibre insertion losses; integrated optics; on-off crosstalk; optical add/drop multiplexer; planar lightwave circuit; silica-based gratings; thermo-optic switches;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950500
