,Single and Multicasting Inverted-Wavelength Conversion at 80 Gb/s Based on a Single Semiconductor O

• 作 者: HUANG Xi QIN Cui YU Yu ZHANG Xin-Liang
• 机 构: Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan
• 出 处: 中国物理快报（英文版）
• 发表日期: 2011年11期

We experimentally demonstrate single and multicasting inverted wavelength conversion at 80Gb/s by using the cross-gain modulation and cross-phase modulation in a single semiconductor optical amplifier (SOA).In all the cases,converted signals with a high extinction ratio (ER) and large eye opening are obtained.For singlechannel wavelength conversion,the ER of the output signal is as high as 30.10dB.For three-channel wavelength multicasting,high quality converted signals could also be observed.The ERs with three channels are 21.54 dB,18.58dB and 17.72dB,respectively.Thus,one- and three-channel wavelength conversion with high performance can be achieved by using a single quantum-well SOA.All-optical wavelength conversion (AOWC).[1-4] is a key technology in wavelength division multiplexed (WDM) networks.AOWC based on semiconductor optical amplifiers (SOAs) is widely used due to its potential integration and power efficieney.Many SOAbased AOWCs have been theoretically and experimentally demonstrated.[5,6] Furthermore,wavelength multicasting is very important in all optical signal processing systems.Wavelength multicasting is a signal processing function that can be used to transfer the information carried by a channel at a certain input wavelength on different output wavelengths.Recently,many methods have been proposed for single wavelength conversion and wavelength multieasting.High nonlinear fibers,electro-absorption modulators and SOAs[7] have been used as nonlinear media.How ever,most of the schemes suffer from drawbacks such as complex architecture,a fairly high optical input power requirement,polarization dependence and so on.