Beggs Daryl M, Midrio Michele, Krauss Thomas F
School of Physics & Astronomy, University of St Andrews, North Haugh, St Andrews, KY16 9SS, UK.
Opt Lett. 2007 Aug 1;32(15):2176-8. doi: 10.1364/ol.32.002176.
We present the design, fabrication, and operation of a polarization converter based on angled waveguides in the InP/InGaAsP material system. By combining design elements from mode evolution and birefringent devices, the total device length is kept short (less than 50 microm) and the insertion efficiency high at 81%+/-19%, which corresponds to an insertion loss of 1 dB. Devices operate broadband, i.e., the polarization conversion exceeds 15 dB over a 100 nm wavelength range. A polarization rotator with these specifications is a prime candidate for use in an integrated polarization diversity scheme.
我们展示了一种基于InP/InGaAsP材料系统中倾斜波导的偏振转换器的设计、制造和运行。通过结合模式演化和双折射器件的设计元素，整个器件长度保持较短（小于50微米），插入效率高达81%±19%，这对应于1分贝的插入损耗。器件具有宽带运行能力，即在100纳米波长范围内偏振转换超过15分贝。具有这些规格的偏振旋转器是集成偏振分集方案中的主要候选器件。
