Multichannel wavelength multicasting for two QPSK signals based on FWM in SOA
We experimentally demonstrate multichannel wavelength multicasting for two nonreturn-to-zero quadrature phase-shift keying （NRZ-QPSK） channels based on four-wave mixing （FWM） in semiconductor optical amplifier （SOA）. Through the interaction with the two pumps in SOA, the input two 25 Gb/s NRZ-QPSK c...
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| Published in: | Chinese optics letters Vol. 13; no. 1; pp. 10 - 16 |
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| Main Author: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
10-01-2015
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| Subjects: | |
| Online Access: | Get full text |
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| Summary: | We experimentally demonstrate multichannel wavelength multicasting for two nonreturn-to-zero quadrature phase-shift keying （NRZ-QPSK） channels based on four-wave mixing （FWM） in semiconductor optical amplifier （SOA）. Through the interaction with the two pumps in SOA, the input two 25 Gb/s NRZ-QPSK channels are successfully simultaneously multicast to five and two new wavelengths, respectively. All the multicast channels are with a power penalty less than 2.5 dB at a bit error rate （BER） of 10^- 3. A characterization of the system performance using conversion efficiency and BER as figures-of-merit in terms of pump and signal powers is also presented. The results indicate that the pump and signal powers can be optimized to eliminate the introduced deleterious nonlinear components. The wavelengths of the two NRZ-QPSK channels and the two pumps need to be specified to avoid the crosstalk induced by high-order FWM. |
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| Bibliography: | 31-1890/O3 We experimentally demonstrate multichannel wavelength multicasting for two nonreturn-to-zero quadrature phase-shift keying （NRZ-QPSK） channels based on four-wave mixing （FWM） in semiconductor optical amplifier （SOA）. Through the interaction with the two pumps in SOA, the input two 25 Gb/s NRZ-QPSK channels are successfully simultaneously multicast to five and two new wavelengths, respectively. All the multicast channels are with a power penalty less than 2.5 dB at a bit error rate （BER） of 10^- 3. A characterization of the system performance using conversion efficiency and BER as figures-of-merit in terms of pump and signal powers is also presented. The results indicate that the pump and signal powers can be optimized to eliminate the introduced deleterious nonlinear components. The wavelengths of the two NRZ-QPSK channels and the two pumps need to be specified to avoid the crosstalk induced by high-order FWM. Jun Qin , Yuefeng Ji, Hongxiang Wang, Danshi Wang , Min Zhang, Guo-Wei Lu （1.State Key Laboratory of Information Photonics and Optical Communication, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China 2Institute of Innovative Science and Technology, Tokai University, Japan） |
| ISSN: | 1671-7694 |
| DOI: | 10.3788/col201513.010601 |