Title :
Direct modulation and coherent detection optical OFDM
Author :
Sheffi, Nir ; Sadot, Dan
Author_Institution :
Electr. & Comput. Eng. Dept., Ben Gurion Univ., Beer-Sheva, Israel
Abstract :
Optical orthogonal frequency division multiplexing (O-OFDM) with a novel direct modulation and coherent detection system at 34.3 Gb/s and 16 QAM is proposed. Electronic pre-compensation of laser frequency response is applied at the transmitter. Following homodyne coherent detection and analog to digital conversion, digital signal processing compensates the DFB laser frequency chirp and chromatic dispersion (CD). Mathematical results and numerical simulation show that the proposed system achieves 10-3 BER with 10.5 Eb/N0, similar to a standard single carrier system.
Keywords :
OFDM modulation; homodyne detection; quadrature amplitude modulation; DFB laser frequency chirp; QAM; analog to digital conversion; chromatic dispersion; coherent detection optical OFDM; digital signal processing; direct modulation; electronic precompensation; homodyne coherent detection; laser frequency response; optical orthogonal frequency division multiplexing; Chirp; Laser modes; OFDM; Optical fibers; Optical filters; Optical transmitters; Coherent detection; direct modulation; electronic compensation; laser frequency chirp; optical orthogonal frequency-division multiplexing (OFDM);
Conference_Titel :
Electrical and Electronics Engineers in Israel (IEEEI), 2010 IEEE 26th Convention of
Conference_Location :
Eliat
Print_ISBN :
978-1-4244-8681-6
DOI :
10.1109/EEEI.2010.5662098
