Experimental study of wavelength conversion at various modulation formats based on four-wave mixing in a semiconductor optical amplifier

被引：0
作者：
Wuhan National Laboratory for Optoelectronics, School of Optoelectronic Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China [1 ]
机构：
[1] Wuhan National Laboratory for Optoelectronics, School of Optoelectronic Science and Technology, Huazhong University of Science and Technology
来源：
Guangxue Xuebao | 2008年 / 7卷 / 1327-1332期
关键词：
Four-wave mixing; Multicasting; Semiconductor optical amplifier; Wavelength conversion;
D O I：
10.3788/AOS20082807.1327
中图分类号：
学科分类号：
摘要：
The wavelength conversion based on four-wave mixing (FWM) in semiconductor optical amplifier (SOA) for a variety of modulation formats is demonstrated. As for nonreturn-to-zero (NRZ) format, the single-to-triple channel wavelength conversion is reported. The modulation speed varies from 10 Gb/s to 40 Gb/s. As for return-to-zero (RZ) format, the wavelength conversion at 20 Gb/s and 40 Gb/s is realized. As for carrier suppressed RZ (CSRZ) format, the 40 Gb/s wavelength conversion is achieved. A notch filter made by fiber Bragg grating is used to separate the conjugated light and the pump light. As for NRZ-differential phase shift keying (DPSK) format, the wavelength conversion at 20 Gb/s and 40 Gb/s is realized. A home-made fiber delayed interferometer (FDD is employed to demodulate the converted DPSK signal. The output extinction ratio (ER) of the converted signal based on FWM is higher than 7 dB, and the ER degradation is about 3 dB.
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页码：1327 / 1332
页数：5
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