Title :
Generator of ultrashort optical pulses for time division multiplexing
Author :
Dellunde, Jaume ; Mirasso, C.R. ; Torrent, M.C. ; Sancho, Jose M.
Author_Institution :
Dept. d´´Estructura i Constituents de la Mater., Barcelona Univ., Spain
fDate :
10/1/1998 12:00:00 AM
Abstract :
The performance of a device based on modified injection-locking techniques is studied by means of numerical simulations. The device incorporates master and slave configurations, each one with a DFB laser and an electroabsorption modulator (EAM). This arrangement allows the generation of high peak power, narrow optical pulses according to a periodic or pseudorandom bit stream provided by a current signal generator. The device is able to considerably increase the modulation bandwidth of free-running gain-switched semiconductor lasers using multiplexing in the time domain. Opportunities for integration in small packages or single chips are discussed
Keywords :
distributed feedback lasers; electro-optical modulation; electroabsorption; high-speed optical techniques; integrated optoelectronics; laser mode locking; optical communication equipment; semiconductor lasers; time division multiplexing; DFB laser; current signal generator; electroabsorption modulator; free-running gain-switched semiconductor laser; injection locking; master-slave configuration; modulation bandwidth; numerical simulation; package; periodic bit stream; pseudorandom bit stream; single chip integration; time division multiplexing; ultrashort optical pulse generation; Bandwidth; Distributed feedback devices; Frequency; Laser feedback; Optical feedback; Optical modulation; Optical pulse generation; Optical pulses; Semiconductor lasers; Time division multiplexing;
Journal_Title :
Electron Devices, IEEE Transactions on
