P. Seddighian and L. R. Chen, "Regenerative Tunable Optical Delay for Phase Modulated Signals,"
in Optical Fiber Communication Conference,
OSA Technical Digest (CD)
(Optical Society of America, 2010), paper JWA45.
We propose a multi-functional element that achieves both noise reduction and continuously tunable optical delay for phase modulated signals. We experimentally show 14.7dB OSNR improvement and up to 882ps tunable delay for a NRZ-DPSK signal.