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Title: An all-optical modulation format conversion for 8QAM based on FWM in HNLF
Authors: Zhang, B.
Zhang, H. 
Yu, C. 
Cheng, X.
Yeo, Y.K.
Kam, P.-K. 
Yang, J.
Zhang, H.
Wen, Y.-H.
Feng, K.-M.
Keywords: 8-ary quadrature amplitude modulation (8QAM)
cross phase modulation (XPM)
four-wave mixing (FWM)
highly nonlinear fiber (HNLF)
Issue Date: 2013
Citation: Zhang, B., Zhang, H., Yu, C., Cheng, X., Yeo, Y.K., Kam, P.-K., Yang, J., Zhang, H., Wen, Y.-H., Feng, K.-M. (2013). An all-optical modulation format conversion for 8QAM based on FWM in HNLF. IEEE Photonics Technology Letters 25 (4) : 327-330. ScholarBank@NUS Repository.
Abstract: In this letter, we propose and experimentally demonstrate an all-optical modulation format conversion scheme from amplitude shift keying (ASK) and quadrature phase shift keying (QPSK) to 8-ary quadrature amplitude modulation (8QAM), using four-wave mixing (FWM) effect in highly nonlinear fiber. In the FWM process, a 20-Gbits/s return-to-zero QPSK (RZ-QPSK) signal and a 10-Gbit/s ASK signal are utilized as probe light and pump light, respectively. A 30-Gbits/s RZ-8QAM signal, which is the idler light, is successfully obtained with optical signal-to-noise ratio larger than 30 dB and bit-error rate lower than 10-5. © 1989-2012 IEEE.
Source Title: IEEE Photonics Technology Letters
ISSN: 10411135
DOI: 10.1109/LPT.2012.2236547
Appears in Collections:Staff Publications

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