Low-loss, low-cross-talk crossings for silicon-on-insulator nanophotonic waveguides.
نویسندگان
چکیده
We present compact crossings for silicon-on-insulator photonic wires. The waveguides are broadened using a 3 microm parabolic taper in each arm. By locally applying a lower index contrast using a double-etch technique, loss of confinement is reduced and 97.5% transmission (-1.7 dB) is achieved with only -40 dB cross talk.
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ورودعنوان ژورنال:
- Optics letters
دوره 32 19 شماره
صفحات -
تاریخ انتشار 2007