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Coded OFDM in Fiber-Optics Communication Systems with Optimum biasing of Laser

Author(s): Er. Kamaljit Singh Bhatia | Dr. R. S. Kaler | Dr. T.S.Kamal | Dr. Rajneesh Kaler

Journal: Signal Processing : An International Journal
ISSN 1985-2339

Volume: 5;
Issue: 2;
Start page: 33;
Date: 2011;
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Keywords: Orthogonal Frequency Division Multiplexing (OFDM) | Relative Intensity to Noise Ratio (RIN) | Space Time Block Coding (STBC).

A novel high spectral efficiency all-optical sampling orthogonal frequency-division multiplexingscheme is proposed using space frequency Block coding (SFBC) techniques and nonlinearbehavior of vertical-cavity surface-emitting laser diodes is exploited by relative intensity to noise(RIN).We show that in long-haul fiber optics communications, SFBC-coded OFDM increasesspectral efficiency and reduces the influence of chromatic dispersion in optical-OFDM system ifRIN is adjusted to -155 dB/Hz
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