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Circulator-Free Reflection-Type Tunable Optical Dispersion Compensator Using Tandem Arrayed-Waveguide Gratings

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4 Author(s)
Ikuma, Y. ; Sch. of Integrated Design Eng., Keio Univ., Yokohama, Japan ; Mizuno, T. ; Takahashi, H. ; Tsuda, H.

A tunable optical dispersion compensator that uses cascaded arrayed-waveguide gratings and an integrated phase shifter is reported. It is a catoptric circuit but does not require a circulator. The dispersion is successfully controlled from +142 to +1148 ps/nm. Error-free transmission is confirmed after dispersion compensation in a transmission experiment using 43 Gbps CSRZ-DQPSK modulation.

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Lightwave Technology, Journal of  (Volume:29 ,  Issue: 16 )