Title :
Optical pulse generation at frequencies up to 20 GHz using external-injection seeding of a gain-switched commercial Fabry-Perot laser
Author :
Barry, L.P. ; Anandarajah, P. ; Kaszubowska, A.
Author_Institution :
Sch. of Electron. Eng., Dublin City Univ., Ireland
Abstract :
We demonstrate that by using strong external-injection seeding of gain-switched Fabry-Perot (FP) lasers, it is possible to generate optical pulses at repetition rates far in excess of the laser bandwidth. Experimental results illustrate the generation of optical pulses at frequencies up to 20 GHz from a FP laser with a 3-dB bandwidth of only 8 GHz. The optical pulses generated have a duration around 12 ps, and a spectral width of 40 GHz.
Keywords :
Fabry-Perot resonators; laser beam applications; optical communication; optical pulse generation; semiconductor lasers; 1.5 micron; 12 ps; 20 GHz; 8 GHz; InGaAsP; commercial Fabry-Perot laser; external-injection seeding; gain-switched commercial Fabry-Perot laser; optical pulse generation; Bandwidth; Diode lasers; Fiber lasers; Frequency; Laser modes; Optical fiber couplers; Optical fiber polarization; Optical pulse generation; Optical pulses; Semiconductor lasers;
Journal_Title :
Photonics Technology Letters, IEEE
