Title :
Passive FM locking and pulse generation from 980-nm strained-quantum-well Fabry-Perot lasers
Author :
Chinn, S.R. ; Swanson, E.A.
Author_Institution :
MIT, Westford, MA, USA
Abstract :
Multiple-order passive frequency modulation (FM) locking in 980-nm lasers has been measured using autocorrelation and optical spectra. Optical fiber dispersion provided a simple means of converting the coherent FM output to an amplitude modulation (AM) pulse train at multiples of the laser round-trip frequency. We have produced such pulses at frequencies of up to 233 GHz from a single source with no external modulation. Extension of this technique should be possible with 1550-nm lasers.<>
Keywords :
amplitude modulation; frequency modulation; laser mode locking; laser theory; optical modulation; semiconductor lasers; 1550 nm; 233 GHz; 980 nm; AM pulse train; amplitude modulation; autocorrelation; coherent FM output; laser round-trip frequency; multiple-order passive frequency modulation; optical fiber dispersion; optical spectra; passive FM locking; pulse generation; strained-quantum-well Fabry-Perot lasers; Autocorrelation; Fiber lasers; Frequency measurement; Frequency modulation; Optical fiber dispersion; Optical modulation; Optical pulse generation; Optical pulses; Pulse generation; Pulse modulation;
Journal_Title :
Photonics Technology Letters, IEEE
