Modified duobinary return-to-zero (MD-RZ) format is an improvement of optical duobinary (ODB) format. This paper proposes a novel, all-optical method to generate MD-RZ format by using a polarization maintaining fiber loop mirror (PMFLM). Operation principle for all-optical format conversion is theoretically analyzed and the output spectrum is simulated. 40-Gb/s MD-RZ data format generation is experimentally demonstrated.
© 2007 Chinese Optics Letters
(060.2420) Fiber optics and optical communications : Fibers, polarization-maintaining
(060.4080) Fiber optics and optical communications : Modulation
(060.4510) Fiber optics and optical communications : Optical communications
(060.5060) Fiber optics and optical communications : Phase modulation
Xin Wang and Xinliang Zhang, "Generation of modified duobinary return-to-zero format using polarization-maintaining fiber loop mirror," Chin. Opt. Lett. 5, 69-70 (2007)