Title :
Tunable operation of a gain-switched diode laser by nonresonant self-injection seeding
Author :
Birkin, David J L ; Rafailov, E.U. ; Sibbett, W. ; Avrutin, E.
Author_Institution :
Sch. of Phys. & Astron., St. Andrews Univ., UK
Abstract :
We report tunable operation of a gain-switched diode laser by nonresonant self-injection seeding from an uncoated glass slide used as an external cavity reflector. A spectral linewidth reduction from 11 to 0.05 nm has been achieved for picosecond pulses with little effect on other laser characteristics. Good agreement with numerical simulations based on a compound-cavity laser model is also reported.
Keywords :
high-speed optical techniques; laser cavity resonators; laser mirrors; laser modes; laser theory; laser tuning; ridge waveguides; semiconductor device models; semiconductor lasers; spectral line breadth; waveguide lasers; 980 nm; InGaAs-GaAs; compound-cavity laser model; external cavity reflector; gain-switched diode laser; laser characteristics; nonresonant self-injection seeding; numerical simulations; picosecond pulses; spectral linewidth reduction; tunable operation; uncoated glass slide; Bandwidth; Diode lasers; Frequency; Glass; Laser feedback; Laser modes; Laser tuning; Optical pulses; Semiconductor lasers; Tunable circuits and devices;
Journal_Title :
Photonics Technology Letters, IEEE
