Author_Institution :
Dept. of Electron. Eng., Jinwen Univ. of Sci. & Technol., Taipei, Taiwan
Abstract :
This paper proposes and validates a bidirectional hybrid lightwave transport system based on fiber-invisible laser light communication (IVLLC) and fiber-visible laser light communication (VLLC) convergences with light injection and optoelectronic feedback techniques. This paper is also the first to employ light injection and optoelectronic feedback techniques in a bidirectional lightwave transport system based on fiber-IVLLC and fiber-VLLC integration. Light is successfully modulated directly with cable television (CATV), 16-quadrature amplitude modulation (QAM), and 16-QAM-orthogonal frequency-division multiplexing (OFDM) signals. Good carrier-to-noise ratio, composite second order, composite triple beat, and bit error rate (BER) are obtained for CATV, 16-QAM, and 16-QAM-OFDM signal transmissions over a combined 40-km single-mode fiber, a 1.43-km photonic crystal fiber, and 6-m free-space transmission. The proposed bidirectional hybrid lightwave transport system exhibits significant potential in providing broadband integrated services, such as CATV, Internet, and telecommunication, via optical fiber and free-space indoor networks.
Keywords :
OFDM modulation; error statistics; holey fibres; optical fibre communication; photonic crystals; quadrature amplitude modulation; 16-QAM-orthogonal frequency-division multiplexing signals; 16-quadrature amplitude modulation; bidirectional hybrid lightwave transport system; bit error rate; cable television; carrier-to-noise ratio; composite second order; composite triple beat; distance 1.43 km to 40 km; fiber-IVLLC convergences; fiber-VLLC convergences; fiber-invisible laser light communication; fiber-visible laser light communication; free-space transmission; light injection; optoelectronic feedback techniques; photonic crystal fiber; Optical attenuators; Optical feedback; Optical fiber cables; Optical fiber networks; Optical fibers; Fiber-IVLLC convergence; Fiber-VLLC convergence; Fiber-invisible laser light communication (IVLLC) convergence; Invisible laser light communication; Visible laser light communication; fiber-visible laser light communication (VLLC) convergence;
