Wide tuning range and low operating power AWG-based thermo-opticwavelength tunable filter using polymer waveguides |
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| Authors: | Toyoda S Ooba N Kitoh T Kurihara T Maruno T |
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| Affiliation: | NTT Photonics Labs., Ibaraki; |
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| 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 |
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