Title :
Direct off-air detection, transmission, and tunable bandpass filtering using self-pulsating lasers and substrate antennae
Author :
Dudley, Sandra E M ; Guzman, Jose Miguel ; Quinlan, Terence ; Walker, Stuart D.
Author_Institution :
Electron. Syst. Eng. Dept., Univ. of Essex, Chelmsford, UK
Abstract :
This paper reports for the first time direct off-air detection and transmission from the radio frequency through to the optical domain using a substrate antenna and a self-pulsating laser. The injection-locking property of self-pulsating lasers is exploited and used to lock onto a 1.393-GHz carrier amplitude shift key modulated with 155-Mb/s pseudorandom data. Tunable selection of carriers at 1.409 and 1.630 GHz is demonstrated, with the resultant injection-locked signals being amplified by ∼20 dB.
Keywords :
amplitude shift keying; band-pass filters; high-speed optical techniques; microstrip antennas; microwave photonics; optical fibre communication; optical modulation; bandpass filtering; carrier amplitude shift key modulation; injection locking; self-pulsating laser; substrate antenna; Band pass filters; Fiber lasers; Filtering; Laser feedback; Laser modes; Optical fibers; Optical filters; Transmitting antennas; Tunable circuits and devices; Waveguide lasers; Bandpass filter; injection locking; radio-over-fiber; saturable absorber; self-pulsating laser;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2004.838850
