Title :
All-Optical Envelope Detection and Fiber Transmission of Wireless Signals by External Injection of a DFB Laser
Author :
Prince, Kamau ; Monroy, I. Tafur
Author_Institution :
DTU Fotonik, Tech. Univ. of Denmark, Lyngby
Abstract :
We outline a novel method for all-optical envelope detection of wireless signals by exploiting cross-gain modulation effects in a distributed feedback laser operating with optical injection. We successfully demonstrate envelope detection of a 20-GHz carrier amplitude-shift-keying modulated signal at 2.5 Gb/s and its transmission over a 70-km optical fiber link. We present results including bit-error-rate measurements, signal waveforms, and receiver sensitivity penalties associated with envelope detection and fiber transmission.
Keywords :
amplitude shift keying; distributed feedback lasers; error statistics; microwave photonics; optical communication equipment; optical fibre networks; optical links; optical modulation; radio-over-fibre; all-optical envelope detection; bit rate 2.5 Gbit/s; bit-error-rate; carrier amplitude-shift-keying modulated signal; cross-gain modulation; distance 70 km; distributed feedback laser; fiber transmission; frequency 20 GHz; optical fiber link; receiver sensitivity penalties; signal waveforms; wireless signals; Distributed feedback devices; Envelope detectors; Fiber lasers; Laser feedback; Optical feedback; Optical fibers; Optical modulation; Optical receivers; Optical sensors; Signal detection; All-optical signal processing; envelope detection; optical access network; radio-frequency-over-fiber (RFoF);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2008.926915
