Title :
Self-Coherent Decision-Feedback-Directed 40-Gb/s DQPSK Receiver
Author :
Nazarathy, Moshe ; Liu, Xiang ; Christen, Louis ; Lize, Yannick ; Willner, Alan
Author_Institution :
Electr. Eng. Dept., Technion - Israel Inst. of Technol., Haifa
fDate :
6/1/2007 12:00:00 AM
Abstract :
A novel 40-Gb/s differential quadrature phase-shift keying receiver is theoretically proposed, improving direct detection by 4.2 dB for self-phase-modulation-limited single-channel transmission, approaching ideal coherent homodyne performance using a recirculating delay line interferometric integrated-optical circuit front-end combining decision feedback and nonlinear phase-noise compensation
Keywords :
differential phase shift keying; integrated optics; light interferometry; optical delay lines; optical fibre communication; optical receivers; phase noise; quadrature phase shift keying; self-phase modulation; 40 Gbit/s; DQPSK receiver; coherent homodyne performance; differential quadrature phase-shift keying; direct detection; front-end combining decision feedback; integrated-optical circuit; interferometry; nonlinear phase-noise compensation; recirculating delay line; self-coherent decision feedback; self-phase modulation; single-channel transmission; Fiber nonlinear optics; Nonlinear optics; Optical feedback; Optical filters; Optical interferometry; Optical modulation; Optical receivers; Optical transmitters; Phase detection; Quadrature phase shift keying; Decision feedback; differential phase-shift keying (DPSK); integrated optics; maximum likelihood decoding; optical fiber communication; phase modulation;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.896576
