Title :
Ten-to-twenty gigabit-per-second modulation performance of 1.5-μm distributed feedback lasers for frequency-shift-keying systems
Author :
Vodhanel, R.S. ; Elrefaie, A.F. ; Wagner, R.E. ; Iqbal, M.Z. ; Gimlett, J.L. ; Tsuji, S.
Author_Institution :
Bellcore, Red Bank, NJ, USA
fDate :
10/1/1989 12:00:00 AM
Abstract :
The frequency modulation (FM) and amplitude modulation (AM) responses of a 1.5-μm distributed feedback (DFB) laser were measured to 15 GHz. At 9-mW output power, the magnitude of the FM response was flat out to 12 GHz, and there was a 15-25-ps delay between the FM and AM responses. Computer simulation techniques indicate that the measured FM response is adequate to produce good eye patterns for frequency-shift-keying modulation at data rates up to 20 Gb/s. The high-speed frequency-shift-keying modulation capability of this 1.5-μm DFB laser was experimentally confirmed at 11 Gb/s
Keywords :
amplitude modulation; distributed feedback lasers; frequency modulation; frequency shift keying; laser transitions; laser variables measurement; optical modulation; semiconductor junction lasers; 1.5 micron; 10 to 20 Gbit/s; 12 GHz; 15 GHz; 15 to 25 ps; 9 mW; FM response; amplitude modulation; data rates; distributed feedback lasers; eye patterns; frequency modulation; frequency-shift-keying; frequency-shift-keying modulation; high speed frequency modulation; high-speed frequency-shift-keying; semiconductor lasers; time delayed responses; Bit rate; Distributed feedback devices; Frequency modulation; Frequency shift keying; High speed optical techniques; Intensity modulation; Laser feedback; Optical feedback; Optical modulation; Semiconductor lasers;
Journal_Title :
Lightwave Technology, Journal of
