Y. Jiao, Y. Zhu, X. Hong, Y. Shi, L. Xu and S. He
IEEE Photonics Technology Letters, vol. 23, pp. 1490-1492, 2011.
Publication year: 2011


This letter presents the design and fabrication of an optical mixer based on SU8 polymer for the demodulation of polarization division multiplexed-quadrature phase shift keying (PDM-QPSK) signals. The mixer consists of two novel polarization beam splitters (PBSs) and two 4 × 4 multimode interference (MMI) couplers. It is the first polymer-based optical mixer incorporated with PDM functionality. The experimental results show good performances of the mixer.

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