A millimeter-wave radio-over-fiber system for overcoming fiber dispersion-induced signal cancellation effect

Taraprasad Chattopadhyay

doi:10.1007/s11801-012-1200-6

Optoelectronics Letters ›› 2012, Vol. 8 ›› Issue (4) : 293 -296. DOI: 10.1007/s11801-012-1200-6

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A millimeter-wave radio-over-fiber system for overcoming fiber dispersion-induced signal cancellation effect

Taraprasad Chattopadhyay ¹^,^a

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Abstract

Millimeter-wave (mm-wave) radio over fiber (ROF) using dispersive single-mode fiber is susceptible to signal cancellation effect at the output of the uni-travelling carrier photodiode at the base station (BS). The fiber dispersion effect produces different phase shifts of the sidebands of the intensity-modulated lightwave which can produce a cancellation of the output signal when mixed with the optical carrier. In this paper, we propose and analyze a novel scheme of mm-wave ROF which uses microwave modulation at the central station (CS) and frequency upconversion before the BSs. This scheme can overcome fiber dispersion-induced signal cancellation effect.

Keywords

Lithium Niobate / Group Velocity Dispersion / Optical Carrier / Microwave Modulation / Radio Over Fiber

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Taraprasad Chattopadhyay. A millimeter-wave radio-over-fiber system for overcoming fiber dispersion-induced signal cancellation effect. Optoelectronics Letters, 2012, 8(4): 293-296 DOI:10.1007/s11801-012-1200-6

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