Title :
Sensitive 50- Omega coherent lightwave receiver utilizing a high-power local oscillator
Author :
Gnauck, A.H. ; Riechmann, K.C. ; Koch, T.L. ; Burrus, C.A.
Author_Institution :
AT&T Bell Lab., Holmdel, NJ, USA
fDate :
5/1/1990 12:00:00 AM
Abstract :
The performance of a simple 50- Omega balanced receiver suitable for use in multigigabit heterodyne coherent lightwave systems is described. A high-power, tunable, distributed-Bragg-reflector laser is used as a local oscillator, resulting in a thermal noise penalty of only 2.4 dB. Frequency-shift keying (FSK) system results at 1 and 4 Gb/s are reported.<>
Keywords :
demodulation; distributed Bragg reflector lasers; frequency shift keying; light coherence; optical communication equipment; receivers; 1 Gbit/s; 4 Gbit/s; 50 ohm; FSK; balanced receiver; coherent lightwave receiver; distributed-Bragg-reflector laser; frequency shift keying; high-power local oscillator; multigigabit heterodyne coherent lightwave systems; thermal noise penalty; tunable; Distributed feedback devices; Fiber lasers; Frequency shift keying; Laser noise; Local oscillators; Optical attenuators; Optical fiber polarization; Optical receivers; Photodetectors; Semiconductor device noise;
Journal_Title :
Photonics Technology Letters, IEEE
