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Wide tuning range and low operating power AWG-based thermo-optic wavelength tunable filter using polymer waveguides

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5 Author(s)
S. Toyoda ; NTT Photonics Labs., Ibaraki, Japan ; N. Ooba ; T. Kitoh ; T. Kurihara
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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

Published in:

Electronics Letters  (Volume:37 ,  Issue: 18 )