Title :
Signal up-conversion by using a cross-phase-modulation in all-optical SOA-MZI wavelength converter
Author :
Song, Ho-Jin ; Lee, Jeong Seon ; Song, Jong-In
Author_Institution :
Dept. of Inf. & Commun., Kwangju Inst. of Sci. & Technol., Gwangju, South Korea
Abstract :
All-optical signal up-conversion into the millimeter-wave frequency band is demonstrated using a semiconductor optical amplifier Mach-Zehnder interferometer (SOA-MZI) wavelength converter, which is based on a cross phase modulation (XPM) effect in the SOA. This scheme shows good conversion efficiency with polarization immunity and no increase in phase noise. The measured phase noise of the up-converted RF signal of 32.5 GHz is -79.2 dBc/Hz at 10 KHz offset, which is limited by that from the LO signal. A two-tone measurement is performed to characterize the linearity of the signal up-conversion. The measured spurious free dynamic range (SFDR) is 75.2 dB·Hz23/, which meets the SFDR requirement for mobile communication systems.
Keywords :
Mach-Zehnder interferometers; optical communication equipment; optical modulation; optical wavelength conversion; phase modulation; phase noise; semiconductor optical amplifiers; 10 kHz; 32.5 GHz; SOA-MZI wavelength converter; all-optical signal up-conversion; cross-phase-modulation; phase noise; semiconductor optical amplifier Mach-Zehnder interferometer; spurious free dynamic range; two-tone measurement; Frequency conversion; Millimeter wave communication; Millimeter wave measurements; Noise measurement; Optical frequency conversion; Optical polarization; Optical wavelength conversion; Phase modulation; Phase noise; Semiconductor optical amplifiers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.822249
