High speed optical sampling covering C band and L band using CPPLN waveguide

Ning Chunmei*, Yang Aiying, Cui Jianmin, Shen Shikui, Wu Xiangyu, Sun Yunan

*Corresponding author for this work

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Abstract

Two means of high speed optical sampling covering C band and L band based on sum frequency generation (SFG) in chirped periodically poled LiNbO 3 (CPPLN) waveguide are studied in this paper. For the first method, arbitrary waveband inside C and L band can be sampled by tuning pump wavelength and the bandwidth is controllable by choosing suitable waveguide length and chirped coefficient of CPPLN waveguide. For another, the broad bandwidth covering C band and L band can be obtained with a fixed pump. The numerical simulations based on coupled-wave equations are carried out. The NRZ sequences of 10 Gb/s and 640 Gb/s transmission rate are sampled in simulation. Distinct eye diagrams and quality factors (Q) are obtained by software-synchronized algorithm. The results show that the two means of the optical sampling both can cover C band and L band. SFG in CPPLN waveguide used for optical sampling system has a broad bandwidth and more flexible selectivity.

Original languageEnglish
Pages (from-to)1412-1417
Number of pages6
JournalOptics Communications
Volume284
Issue number5
DOIs
Publication statusPublished - 1 Mar 2011

Keywords

  • C band and L band
  • CPPLN waveguide
  • Optical sampling
  • SFG

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Chunmei, N., Aiying, Y., Jianmin, C., Shikui, S., Xiangyu, W., & Yunan, S. (2011). High speed optical sampling covering C band and L band using CPPLN waveguide. Optics Communications, 284(5), 1412-1417. https://doi.org/10.1016/j.optcom.2010.11.001