Title :
Phase-Incoherent DQPSK Wavelength Conversion Using a Photonic Integrated Circuit
Author :
Bougioukos, Marios ; Richter, Thomas ; Kouloumentas, Christos ; Katopodis, Vasilis ; Harmon, Robert ; Rogers, David ; Harrison, James ; Poustie, Alistair ; Maxwell, Graeme ; Schubert, Colja ; Avramopoulos, Hercules
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens, Athens, Greece
Abstract :
We investigate the performance of a large-scale, silica-on-silicon photonic integrated circuit for multiformat signal processing, and we experimentally demonstrate wavelength-conversion of (differential) quadrature phase-shift keying [(D)QPSK] signals. The circuit exploits phase-incoherent techniques to decode the input signal and to phase remodulate two phase-shift-keying components before combining them in a common QPSK output stream. Error-free wavelength conversion with 4-dB power penalty is reported at 44 Gb/s.
Keywords :
elemental semiconductors; integrated optics; optical wavelength conversion; quadrature phase shift keying; signal processing; silicon; bit rate 44 Gbit/s; differential quadrature phase-shift keying; error-free wavelength conversion; multiformat signal processing; phase-incoherent DQPSK wavelength conversion; phase-incoherent techniques; silica-on-silicon photonic integrated circuit; wavelength-conversion; Clocks; Optical attenuators; Optical filters; Optical pulses; Optical transmitters; Optical wavelength conversion; Phase shift keying; Differential quadrature phase-shift-keying (DQPSK) wavelength conversion; Mach–Zehnder; hybrid integration; phase-incoherent processing;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2011.2164903
