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25 March 2004 Novel approach to polarization-independent single-mode microring resonator
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Micro-ring resonators, by virtue of the geometrical birefringence of the strongly-confined waveguides used to construct them, are polarization dependent, and thus of limited application in fiber networks unless integrated with a laser or polarization controller. This paper addresses the polarization sensitivity issue by proposing a novel design of an MMI-coupled resonator with substantially reduced polarization sensitivity, while maintaining single-mode and low-loss conditions. The polarization-independent, single-mode waveguide is obtained by using the proper combination of ridge width and etching depth. The design is applicable to relatively large resonators, and may provide an intrinsic solution to small-FSR (free spectral range) polarization-independent applications.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mee-Koy Chin "Novel approach to polarization-independent single-mode microring resonator", Proc. SPIE 5277, Photonics: Design, Technology, and Packaging, (25 March 2004);

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