Title :
RZ versus NRZ in space communication systems using direct current modulated transmitter and optically pre-amplified receiver with ultra-narrow optical filter
Author :
Hjelme, Dag R. ; Røyset, Arne
Author_Institution :
SINTEF, Trondheim, Norway
Abstract :
RZ is an attractive modulation format for optical space systems due to a potential 2-3 dB sensitivity improvement over NRZ. We demonstrate that the combined effect of laser chirp and the narrow optical filter removes the RZ advantage
Keywords :
chirp modulation; optical filters; optical links; optical modulation; optical receivers; optical transmitters; space communication links; NRZ space communication systems; RZ space communication systems; attractive modulation format; direct current modulated transmitter; laser chirp; narrow optical filter; optical space systems; optically pre-amplified receiver; sensitivity improvement; ultra-narrow optical filter; Bandwidth; Forward error correction; Optical filters; Optical modulation; Optical noise; Optical receivers; Optical sensors; Optical signal processing; Optical transmitters; Pulse modulation;
Conference_Titel :
LEOS '99. IEEE Lasers and Electro-Optics Society 1999 12th Annual Meeting
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-5634-9
DOI :
10.1109/LEOS.1999.813563
