CSO/CTB performances improvement in a bi-directional DWDM CATV system

• Published in: IEEE transactions on broadcasting Vol. 50; no. 4; pp. 377 - 381
• Main Authors: LU, Hai-Han, WANG, Wen-Jen, TSAI, Wen-Shing
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.12.2004; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Bidirectional control; Channel spacing; Chirped fiber grating; cross-phase modulation; dense-wavelength-division-multiplexing; Exact sciences and technology; fiber dispersion; Fiber nonlinear optics; Optical crosstalk; Optical distortion; Optical fiber communications; Optical fiber devices; Optical fiber polarization; Optical modulation; Optical telecommunications; Optical transmitters; Telecommunications; Telecommunications and information theory; Wavelength division multiplexing; Chirp; cross-phase modulation; Crosstalk; Wavelength division multiplexing; Cable television; Chirped fiber grating; dense-wavelength-division-multiplexing; Optical fiber network; System performance; Cross phase modulation; fiber dispersion; Optical fiber communication; Optical dispersion compensation
• ISSN: 0018-9316; 1557-9611
• DOI: 10.1109/TBC.2004.837880

We proposed and demonstrated a four-wavelength bi-directional dense-wavelength-division-multiplexing (DWDM) CATV system that uses chirped fiber gratings (CFGs) as the dispersion compensation devices to reduce the fiber dispersion and cross-phase modulation (XPM)-induced crosstalk simultaneously. Our proposed system not only reduces the required number of fibers, but also offers the advantages of capacity doubling. Excellent performances of carrier-to-noise ratio (CNR) /spl ges/ 50 dB, composite second order (CSO) /spl ges/ 72 dB and composite triple beat (CTB) /spl ges/ 69 dB were obtained over a 50-km single-mode fiber (SMF) transport.