Title :
Demodulation of DPSK signals up to 40 gb/s using a highly birefringent photonic bandgap fiber
Author :
Peucheret, Christophe ; Geng, Yan ; Zsigri, Beáta ; Alkeskjold, Thomas Tanggaard ; Hansen, Theis Peter ; Jeppesen, Palle
Author_Institution :
COMDTU, Tech. Univ. of Denmark, Lyngby
fDate :
6/1/2006 12:00:00 AM
Abstract :
Phase-to-intensity modulation conversion of differential phase-shift keying signals is successfully demonstrated at 10 and 40 Gb/s using a polarization Mach-Zehnder delay interferometer implemented with only 2.4 m of a highly birefringent air-guiding photonic bandgap (PBG) fiber. Such a PBG fiber exhibits a birefringence one order of magnitude larger than that of conventional polarization-maintaining fibers, thus enabling the realization of compact interferometers. Furthermore, its single material nature is expected to result in reduced temperature sensitivity
Keywords :
Mach-Zehnder interferometers; birefringence; demodulation; differential phase shift keying; intensity modulation; optical fibre communication; optical fibre polarisation; optical modulation; photonic band gap; 10 Gbit/s; 2.4 m; 40 Gbit/s; DPSK signals; birefringent air-guiding photonic bandgap fiber; demodulation; differential phase-shift keying; highly birefringent photonic bandgap fiber; phase-to-intensity modulation; polarization Mach-Zehnder delay interferometer; Birefringence; Delay; Demodulation; Differential phase shift keying; Differential quadrature phase shift keying; Optical fiber polarization; Optical modulation; Phase modulation; Phase shifting interferometry; Photonic bandgap fibers; Delay interferometer (DI); differential phase-shift keying (DPSK); photonic bandgap (PBG) fiber; polarization interferometer;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.877011
