title: PDM RZ-to-NRZ and NRZ-to-PRZ format conversions using a variable DGD element inside a polarization-diversified loop.
abstract: A novel scheme for bit-rate-variable polarization-division-multiplexed return-to-zero to nonreturn-to-zero and NRZ to pseudo-return-to-zero format conversions is proposed using a variable differential-group-delay element inside a polarization-diversified loop. Conversion for both 2×10 and 2×12.5 Gbit/s PDM signals are successfully demonstrated with approximately 1 dB additional power penalty by properly adjusting DGD values of the variable DGD element.
authors: Center for Information Photonics & Communications, School of Information Science & Technology, Southwest Jiaotong University, Chengdu, Sichuan 610031, China.
authors: H-Y
authors: HY
authors: Jiang
authors: L-S
authors: LS
authors: Yan
authors: J
authors: J
authors: Ye
authors: W
authors: W
authors: Pan
authors: B
authors: B
authors: Luo
authors: X Steve
authors: XS
authors: Yao