Open AccessA wavelength-preserving photonic integrated regenerator for NRZ and RZ signals
Author(s) -
N. Andriolli,
S. Faralli,
F. Bontempi,
G. Contestabile
Publication year - 2013
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.020649
Subject(s) - photonics , optics , on off keying , amplitude shift keying , keying , optical amplifier , wavelength , physics , photonic integrated circuit , amplifier , signal regeneration , amplified spontaneous emission , signal (programming language) , phase shift keying , optoelectronics , optical switch , telecommunications , computer science , bit error rate , laser , channel (broadcasting) , programming language , cmos
This paper presents a novel Indium Phosphide based photonic integrated circuit (PIC) for all-optical regeneration of both nonreturn-to-zero (NRZ) and return-to-zero (RZ) on-off-keying (OOK) signals. The PIC exploits cross gain compression in two semiconductor optical amplifiers to simultaneously obtain a wavelength-preserved and reshaped copy, and a wavelength-converted yet inverted copy of the input signal. Regeneration of 10 Gb/s signals on multiple wavelengths is demonstrated, showing a Q-factor improvement from 1.5 to 4 for NRZ-OOK signals and from 2.3 to 3.6 for RZ-OOK signals, and a BER improvement up to 1.5 decades.