Low switching power silica-based super high delta thermo-opticswitch with heat insulating grooves |
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| Authors: | Sohma S. Goh T. Okazaki H. Okuno M. Sugita A. |
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| Affiliation: | NTT Photonics Labs., Nippon Telegraph & Telephone Corp., Ibaraki; |
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| Abstract: | A silica-based 2×2 thermo-optic switch with super high delta planar lightwave circuits has been fabricated and used with a low switching power configuration. This switch has two features that aid switching power reduction, namely heat insulating grooves and a thick undercladding. Dependence of the switching characteristics on these features has been examined both theoretically and experimentally. A very low switching power of 45 mW has been achieved |
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