Title :
Error probabilities of coherent optical heterodyne OOK signals in a noncoherent detection system degraded by laser phase noise
Author :
Varnum, Kent C M ; Robertson, R. Clark ; Ha, Tri T.
Author_Institution :
Dept. of Electr. & Comput. Eng., US Naval Postgraduate Sch., Monterey, CA, USA
Abstract :
An error probability analysis is performed for noncoherent detection of optical heterodyne on-off keying (OOK) signals corrupted by laser phase noise and additive white Gaussian noise. An analytic expression for the probability density function of the random variable that models the effect of laser phase noise on system performance is derived based on a high-user-bit-rate assumption. The system performance obtained with the high-bit-rate expression is compared with the system performance obtained with currently used empirically derived expressions. OOK system performance is obtained for different linewidth-to-bit-rate ratios, signal-to-noise ratios, and normalized decision thresholds. The optimum threshold is found to depend on both the signal-to-noise ratio and the linewidth-to-bit-rate ratio
Keywords :
error statistics; optical communication; signal detection; statistical analysis; white noise; additive white Gaussian noise; coherent optical signals; error probability analysis; high-user-bit-rate assumption; laser phase noise; linewidth-to-bit-rate ratios; noncoherent detection; normalized decision thresholds; optical heterodyne on-off keying; probability density function; signal-to-noise ratios; Error analysis; Error probability; Laser modes; Laser noise; Optical mixing; Optical noise; Performance analysis; Phase noise; Signal to noise ratio; System performance;
Conference_Titel :
Global Telecommunications Conference, 1991. GLOBECOM '91. 'Countdown to the New Millennium. Featuring a Mini-Theme on: Personal Communications Services
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-87942-697-7
DOI :
10.1109/GLOCOM.1991.188635
