The use of a Nyquist filter for reducing an optical signal bandwidth in a coherent QAM optical transmission

Author:

Kasai Keisuke1,Hongo Jumpei1,Goto Hiroki1,Yoshida Masato1,Nakazawa Masataka1

Affiliation:

1. Research Institute of Electrical Communication, Tohoku University

Publisher

Institute of Electronics, Information and Communications Engineers (IEICE)

Subject

Electrical and Electronic Engineering,Condensed Matter Physics,Electronic, Optical and Magnetic Materials

Reference9 articles.

1. [1] S. Hayase, N. Kikuchi, K. Sekine, and S. Sasaki, “Proposal of 8-state per symbol (binary ASK and QPSK) 30-Gbit/s optical modulation/demodulation scheme, ” ECOC2003, Paper Th2.6.4, 2003.

2. [2] S. Tsukamoto, D. S. Ly-Gagnon, K. Katoh, and K. Kikuchi, “Coherent demodulation of 40-Gbit/s polarization-multiplexed QPSK signals with 16-GHz spacing after 200-km transmission, ” OFC2005, PDP 29, 2005.

3. A hybrid CATV/256-QAM/OC-48 DWDM system over an 80-km LEAF transport

4. 20 Msymbol∕s, 64 and 128 QAM coherent optical transmission over 525 km using heterodyne detection with frequency-stabilised laser

5. [5] M. Nakazawa, J. Hongou, K. Kasai, and M. Yoshida, “Polarization-multiplexed 1Gsymbol/s, 64QAM (12Gbit/s) coherent optical transmission over 150km with an optical bandwidth of 2GHz, ” OFC2007, PDP 26, 2007.

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