Title :
Wide tuning range and low operating power AWG-based thermo-optic wavelength tunable filter using polymer waveguides
Author :
Toyoda, S. ; Ooba, N. ; Kitoh, T. ; Kurihara, T. ; Maruno, T.
Author_Institution :
NTT Photonics Labs., Ibaraki, Japan
fDate :
8/30/2001 12:00:00 AM
Abstract :
Two types of polymer thermo-optic wavelength tunable filter (TOWTF) have been developed, each with a pair of triangular phase shifters. One filter is designed for a large-scale WDM system (32 channels, 0.8 nm spacing), the other for a small-scale WDM system (10 channels, 0.8 nm spacing). The arrayed waveguide number is optimised thus reducing the operating power required by the filters. Moreover, both filters operated with a low crosstalk of <-25 dB
Keywords :
demultiplexing equipment; integrated optics; optical arrays; optical crosstalk; optical fibre filters; optical phase shifters; optical polymers; optical tuning; thermo-optical effects; wavelength division multiplexing; AWG-based thermo-optic wavelength tunable filter; arrayed waveguide number; large-scale WDM system; low crosstalk; low operating power; operating power; polymer waveguides; small-scale WDM system; triangular phase shifters; wavelength tunable filters; wide tuning range;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20010763
