differential phase-shift keying (DPSK) demodulations operated by a structured fiber Bragg grating (FBG) filter and by a Mach-Zehnder delay interferometer (MZDI) in a single-ended configuration are compared. Experimental measurements at 10 Gb/s demonstrate that a specially designed FBG outperfoms an integrated-optic MZDI of about 4 dB and 3.5 dB in back-to-back and after 25-km propagation, respectively. FBG filter proves an interesting solution for DPSK demodulation in low-cost applications and, moreover, can be designed to match colorless requirements of WDM-PON applications.
Structured FBG filters for 10-Gb/s DPSK signal demodulation in single ended applications
MARAZZI, LUCIA;BOFFI, PIERPAOLO;PAROLARI, PAOLA;MARTINELLI, MARIO;GATTI, DAVIDE;COLUCCELLI, NICOLA;LONGHI, STEFANO
2011-01-01
Abstract
differential phase-shift keying (DPSK) demodulations operated by a structured fiber Bragg grating (FBG) filter and by a Mach-Zehnder delay interferometer (MZDI) in a single-ended configuration are compared. Experimental measurements at 10 Gb/s demonstrate that a specially designed FBG outperfoms an integrated-optic MZDI of about 4 dB and 3.5 dB in back-to-back and after 25-km propagation, respectively. FBG filter proves an interesting solution for DPSK demodulation in low-cost applications and, moreover, can be designed to match colorless requirements of WDM-PON applications.File in questo prodotto:
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