Design and optimization of chromatic dispersion compensation block in digital coherent optical receiver

被引：0
|
作者：
Xu X. [1 ]
Xi L. [1 ]
Zhang X. [1 ]
Tong C. [1 ]
机构：
[1] State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications
来源：
Guangxue Xuebao/Acta Optica Sinica | 2011年 / 31卷 / 11期
关键词：
Chromatic dispersion compensation filter; Even-symmetric; Fiber optics and optical communications; Finite impulse response filtering;
D O I：
10.3788/AOS201131.1106001
中图分类号：
学科分类号：
摘要：
In digital coherent receivers of high-speed optical fiber communication, the structure and performance of chromatic dispersion compensation block determines its practical value directly. A finite impulse response (FIR) filter with simpler even-symmetric structure is designed, and the effect of different lengths of FIR filter on chromatic dispersion compensation performance is discussed through numerical simulation. The results show that the length of FIR filter can be reduced to 65 percent of its theoretical maximum with only 1 dB penalty of optical signal-to-noise ratio (OSNR) at the receiver, in which the implementation complexity is decreased at a large scale while chromatic dispersion impairment can be compensated effectively.
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页码：1106001 / 1
相关论文
共 15 条
  • [1] Tang Y., Shieh W., Coherent optical OFDM transmission up to 1 Tb/s per channel, J. Lightwwave Technol., 27, 16, pp. 3511-3517, (2009)
  • [2] Renaudier J., Bertran-Pardo O., Charlet G., Et al., 8 Tb/s long haul transmission over low dispersion fibers using 100 Gb/s PDM-QPSK channels paired with coherent detection, Bell Labs Technical Journal, 14, 4, pp. 27-45, (2010)
  • [3] Cheng L., Wen H., Zheng X., Et al., Predistortion of high speed optical OFDM signal for aliasing-free receiving in multiple low-bandwidth receiver system, Chin. Opt. Lett., 8, 4, pp. 377-380, (2010)
  • [4] Zhou X., Digital signal processing for coherent multi-level modulation formats, Chin. Opt. Lett., 8, 9, pp. 863-870, (2010)
  • [5] Feng Y., Wen H., Zhang H., Et al., 40-Gb/s PolMux-QPSK transmission using low-voltage modulation and single-ended digital coherent detection, Chin. Opt. Lett., 8, 10, pp. 976-978, (2010)
  • [6] Feng Y., Wen H., Zhang H., Digital optical coherent detection of polarization-multiplexed differential phase shift keying signal and analysis of adaptive digital polarization demultiplexing, Acta Optica Sinica, 30, 5, pp. 1268-1273, (2010)
  • [7] Taylor M.G., Coherent detection for optical communications using digital signal processing, (2007)
  • [8] Taylor M.G., Coherent detection method using DSP for demodulation of signal and subsequent equalization of propagation impairments, Photon. Technol. Lett., 16, 2, pp. 674-676, (2004)
  • [9] Feng Y., Wen H., Zhang H., Et al., Digitalized optical coherent detection of differential phase shift keying signal and chromatic dispersion compensation, Chinese J. Lasers, 37, 2, pp. 471-476, (2010)
  • [10] Qiao Y., Du X., Ji Y., Phase estimation method in optical QPSK transmission system, Acta Optica Sinica, 30, 5, pp. 1229-1234, (2010)
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