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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 8, Iss. 10 — Oct. 1, 2010
  • pp: 976–978

40-Gb/s PolMux-QPSK transmission using low-voltage modulation and single-ended digital coherent detection

Yong Feng, He Wen, Hanyi Zhang, and Xiaoping Zheng  »View Author Affiliations


Chinese Optics Letters, Vol. 8, Issue 10, pp. 976-978 (2010)


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Abstract

We demonstrate a novel 40-Gb/s transmission system over a 10?01-km standard single mode fiber (SSMF) loop. This system features polarization multiplexed quadrature phase shift keying (PolMux-QPSK), lowvoltage modulation of 2-V peak-to-peak signal amplitude, and home-made 90? optical hybrid with singleended digital coherent detection. Any power amplifers before the modulator and balanced detectors are not used. In the case of low-voltage modulation, coherent detection is much less sensitive to modulator bias offset than delay interferometer-based demodulation.

© 2010 Chinese Optics Letters

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.1660) Fiber optics and optical communications : Coherent communications
(060.5060) Fiber optics and optical communications : Phase modulation

Citation
Yong Feng, He Wen, Hanyi Zhang, and Xiaoping Zheng, "40-Gb/s PolMux-QPSK transmission using low-voltage modulation and single-ended digital coherent detection," Chin. Opt. Lett. 8, 976-978 (2010)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-8-10-976


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