Acta Optica Sinica, Volume. 30, Issue 11, 3270(2010)
Study on Waveband Optional Optical Sampling Based on Chirped Periodically Poled LiNbO3 Waveguide
Optical sampling covering C band and L band based on sum frequency generation (SFG) in chirped periodically poled LiNbO3(CPPLN) is studied. Based on coupled-wave equations, the simulations and numerical computations of the transmission rate and bandwidth are carried out. NRZ sequences of the signal pulses with the transmission rate of 10 Gb/s are sampled. Distinct eye diagrams and quality factor Q are obtained by software-synchronized algorithm.The results show that arbitrary waveband inside C and L band can be sampled by tuning pump wavelength and that the bandwidth of the waveband is controllable by adjusting the waveguide length and the chirped coefficient of CPPLN waveguide. SFG in CPPLN waveguide used for optical sampling system has broader bandwidth and more flexible selectivity than that in PPLN waveguide.
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Ning Chunmei, Yang Aiying, Shen Shikui, Wu Xiangyu, Sun Yunan. Study on Waveband Optional Optical Sampling Based on Chirped Periodically Poled LiNbO3 Waveguide[J]. Acta Optica Sinica, 2010, 30(11): 3270
Category: Nonlinear Optics
Received: Dec. 31, 2009
Accepted: --
Published Online: Nov. 16, 2010
The Author Email: Chunmei Ning (mavlous@bit.edu.cn)