All optical correlator based on 3×3 coupler with feedback for optical header processing
a novel correlator based on 3×3 coupler with dual loops which perform XOR operation and feedback with power compensating is proposed. The validity of device is demonstrated by the simulation with realistic parameters at 10Gb/s and 40Gb/s. For this kind of correlator, the amplified spontaneous emission（ASE） noise accumulation is the crucial limitation. The relationship between the output signal-to-noise ratio（SNR） and bits to be compared is analyzed theoretically. The ASE noise is retrained and the output SNR is enhanced by introducing the assistant light advisably. Therefore, this device can perform the comparison of arbitrary length data. If the dual loops length is minimized by integrate, the devise is applicable for the higher speed data.
all-optical network all-optical header processing all-optical correlator all-optical logic gate 3×3 coupler.
WANG Yaping WU Chongqing WANG Yongjun CHENG Mu
Institute of Optical Information Key Lab of Education Ministry on Luminescence and Optical Information Technology Beijing Jiaotong University;Project supported by the National Natural Science Foundation of China
国际会议
2008亚太光通信会议(Asia-Pacific Optical Communications 2008)
杭州
英文
2008-10-26（万方平台首次上网日期，不代表论文的发表时间）