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Keywords:

  • optical fiber communication;
  • optical clock division;
  • optical demultiplexing;
  • modulator

Abstract

We demonstrate and investigate a simple technique to realize multichannel optical clock division by using a commercial lithium niobate-intensity modulator (LN-IM). Optical clock division is achieved by controlling the driving and dc bias voltage of the LN-IM. 20- to 10-GHz optical clock division experiments of both single and double channel are implemented to verify the performance of the proposed optical clock divider. The phase noise of the extracted 10-GHz optical clock is less than 95 dBc/Hz. The other function of this technique, demultiplexing of optical time division multiplexing (OTDM) signal is also demonstrated experimentally. The 20-Gb/s PRBS OTDM signal is successfully demultiplexed to two 10 Gb/s with high quality. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:94–99, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26477