论文信息 - Wide-range, Accurate and Simple Digital Frequency Offset Compensator for Optical Coherent Receivers

Wide-range, Accurate and Simple Digital Frequency Offset Compensator for Optical Coherent Receivers

We present a digital frequency offset compensator for optical coherent QPSK receivers. The compensation accuracy reaches ± 30 MHz while the range covers ± 5 GHz. This would realize coherent receivers with common off-the-shelf tunable lasers.

[1] K. Kikuchi,et al. Coherent detection of optical quadrature phase-shift keying signals with carrier phase estimation , 2006, Journal of Lightwave Technology.

[2] Zhenning Tao,et al. Simple, Robust, and Wide-Range Frequency Offset Monitor for Automatic Frequency Control in Digital Coherent Receivers , 2007 .

[3] R. Noe,et al. Phase noise-tolerant synchronous QPSK/BPSK baseband-type intradyne receiver concept with feedforward carrier recovery , 2005, Journal of Lightwave Technology.

[4] Andrew J. Viterbi,et al. Nonlinear estimation of PSK-modulated carrier phase with application to burst digital transmission , 1983, IEEE Trans. Inf. Theory.

[5] Takeshi Hoshida,et al. Multiplier-free Phase Recovery for Optical Coherent Receivers , 2008, OFC/NFOEC 2008 - 2008 Conference on Optical Fiber Communication/National Fiber Optic Engineers Conference.

[6] R. Noe. PLL-free synchronous QPSK polarization multiplex/diversity receiver concept with digital I&Q baseband processing , 2005, IEEE Photonics Technology Letters.

[7] A. Leven,et al. Frequency Estimation in Intradyne Reception , 2007, IEEE Photonics Technology Letters.