Title :
Impact of the modulation depth on self-homodyne optical single sideband systems
Author :
Maia, Tiago ; Ribeiro, Rui ; Monteiro, Paulo
Author_Institution :
Inst. of Telecommun., Campus Universitario de Santiago, Aveiro, Portugal
Abstract :
Simulation experiments are used to assess the feasibility of optical SSB systems using self-homodyne detection. The experiments revealed that the electrical waveforms of the drive signals, required by the transmitter modulators, play a critical role on the system performance. Particularly important is the modulation depth. The present study recommends a modulation depth of 0.2 in order to obtain the best performance. The tap delay used in the discrete approximation of the Hilbert filter was also optimized, resulting in a value of 37.5 ps
Keywords :
Hartley transforms; Hilbert transforms; homodyne detection; optical fibre networks; optical modulation; optical signal detection; phase modulation; wavelength division multiplexing; 10 Gbit/s; Hartley concept; Hilbert filter; Taylor series; discrete approximation; drive signal electrical waveforms; linear dispersion equalization; modulation depth influence; optimum value; output power spectrum; phase modulator; pseudo-random sequence; quadrature optical carriers; receiver sensitivity; self-homodyne optical SSB systems; spectral efficiency; square-law detection; tap delay; time delay; transmitter modulators; wavelength division multiplexing networks; Amplitude modulation; Chromatic dispersion; Optical attenuators; Optical distortion; Optical fiber filters; Optical filters; Optical modulation; Phase modulation; Signal detection; Signal generators;
Conference_Titel :
Lasers and Electro-Optics Society, 2001. LEOS 2001. The 14th Annual Meeting of the IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-7105-4
DOI :
10.1109/LEOS.2001.968994
