Title :
Optical single-sideband modulator for broad-band subcarrier multiplexing systems
Author :
Loayssa, A. ; Lim, C. ; Nirmalathas, A. ; Benito, D.
Author_Institution :
Dept. of Electr. & Electron. Eng., Public Univ. of Navarre, Pamplona, Spain
Abstract :
We experimentally demonstrate an enhanced optical single-sideband (OSSB) modulator for subcarrier-multiplexing (SCM) systems that provides improvement of the output optical modulation depth without increasing either the second-order or the third-order nonlinear distortion of the transmitted radio frequency signal. The modulator is deployed in an SCM link conveying 4 /spl times/ 622-Mb/s modulated subcarriers, demonstrating an enhancement of five orders of magnitude in bit error rate compared to the use of a dual-electrode OSSB modulator design. In addition, the dispersion penalty for the worst-case channel is reduced to less than 1.7 dB.
Keywords :
electro-optical modulation; error statistics; nonlinear distortion; optical communication equipment; phase shift keying; subcarrier multiplexing; 2488 Mbit/s; BPSK modulated data; SCM link; bit error rate; broad-band subcarrier multiplexing systems; dispersion penalty; intermodulation distortion; nonlinear distortion; optical fiber communication; optical signal processing; optical single-sideband modulator; output optical modulation depth; single-electrode Mach-Zehnder electrooptic modulator; transmitted radio frequency signal; worst-case channel; Amplitude modulation; Fiber nonlinear optics; Nonlinear optics; Optical crosstalk; Optical distortion; Optical modulation; Optical receivers; Optical sensors; Optical signal processing; Optical transmitters;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2002.806855
