Title :
Input-Power and Polarization Insensitive All-Optical Wavelength Converter With Monolithically Integrated Monitor PD and Gain-Controlled SOA
Author :
Ohata, Nobuo ; Yamatoya, Takeshi ; Saito, Takeshi ; Miyahara, Toshiharu ; Morita, Yoshimichi ; Ishimura, Eitaro ; Sugitatsu, Atsushi ; Aruga, Hiroshi
Author_Institution :
Inf. Technol. R&D Center, Mitsubishi Electr. Corp., Kamakura, Japan
Abstract :
This paper presents a polarization-insensitive semiconductor optical amplifier Mach-Zehnder Interferometer (SOA-MZI) wavelength converter with a wide dynamic range. Direct detection of the wavelength-converted output signal power and feedback control of the signal power input to the SOA-MZI are proposed and are confirmed to be able to reduce the variation with input signal power and polarization. The gain-controlled SOA (GC-SOA) and monitor PD used to implement the feedback control are monolithically integrated into the SOA-MZI wavelength converter. A dynamic range of over 8 dB is obtained for TE and TM polarized input signals NRZ modulated at 43 Gb/s under feedback control, 7 dB better than with no feedback.
Keywords :
Mach-Zehnder interferometers; integrated optoelectronics; light polarisation; monolithic integrated circuits; optical communication equipment; optical modulation; optical wavelength conversion; semiconductor optical amplifiers; NRZ modulation; SOA-MZI wavelength converter; TE polarized input signals; TM polarized input signals; bit rate 43 Gbit/s; direct detection; feedback control; gain-controlled SOA; input-power all-optical wavelength converter; monolithically integrated monitor PD; polarization insensitive all-optical wavelength converter; polarization-insensitive semiconductor optical amplifier Mach-Zehnder interferometer wavelength converter; signal power input; wavelength-converted output signal power; Dynamic range; Feedback control; Monitoring; Optical wavelength conversion; Probes; Semiconductor optical amplifiers; Temperature measurement; All optical wavelength converter; Feedback control; Input dynamic range; Mach-Zehnder interferometer (MZI),; Mach???Zehnder interferometer (MZI); Polarization independence; Semiconductor optical amplifier (SOA); feedback control; input dynamic range; polarization independence; semiconductor optical amplifier (SOA);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2014.2371811
