Direct modulation and coherent detection optical OFDM

Author

Sheffi, Nir ; Sadot, Dan

Author_Institution

Electr. & Comput. Eng. Dept., Ben Gurion Univ., Beer-Sheva, Israel

fYear

2010

fDate

17-20 Nov. 2010

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 E_b/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);

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Electronics Engineers in Israel (IEEEI), 2010 IEEE 26th Convention of

Conference_Location

Eliat

Print_ISBN

978-1-4244-8681-6

Type

conf

DOI

10.1109/EEEI.2010.5662098

Filename

5662098