In-service dispersion monitoring technique using dithered-filter method and its application to fast adaptive compensation in reconfigurable optical networks

Yuichi Takushima; Yoichi Hirota; Kiichi Yoshiara

doi:10.1117/12.630349

24 October 2005 In-service dispersion monitoring technique using dithered-filter method and its application to fast adaptive compensation in reconfigurable optical networks

Yuichi Takushima, Yoichi Hirota, Kiichi Yoshiara

Author Affiliations +

Proceedings Volume 6014, Active and Passive Optical Components for WDM Communications V; 60140R (2005) https://doi.org/10.1117/12.630349
Event: Optics East 2005, 2005, Boston, MA, United States

Abstract

We describe an in-service dispersion monitoring technique which we call dithered-filter method and show its application to adaptive dispersion compensation. In the proposed method, we filter out a portion of the received signal light by a dithered optical band-pass filter and derive the accumulated dispersion from the phase shift of the extracted clock signal. This method does not require any modification of the transmitter, and is applicable to any modulation format as far as the clock signal is extracted. In addition, owing to the dithering and the synchronous detection, high accuracy is realized with a short measurement time less than 200 msec. In this paper, we explain the principle of operation of the proposed method and show the experimental demonstration of fast adaptive dispersion compensation in a 40 Gbit/s reconfigurable optical network.

Citation Download Citation

Yuichi Takushima, Yoichi Hirota, and Kiichi Yoshiara "In-service dispersion monitoring technique using dithered-filter method and its application to fast adaptive compensation in reconfigurable optical networks", Proc. SPIE 6014, Active and Passive Optical Components for WDM Communications V, 60140R (24 October 2005); https://doi.org/10.1117/12.630349

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