Title :
Continuous Tuning of a Diode Laser Over 8.4 THz Near 1550 nm With a Chirped Grating
Author :
Fortin, Gilles ; McCarthy, Nathalie
Author_Institution :
AEREX Avionics Inc., Breakeyville, QC, Canada
Abstract :
We achieve mode-hop-free tuning of an extended-cavity diode laser with an original technique. The external coupler is a chirped (varied line-space) diffraction grating. A simple linear translation of the grating is then sufficient to obtain continuous tuning. The measured continuous tuning range has reached 66 nm (8.4 THz) near a wavelength of 1550 nm with a relatively constant output power of 3 mW.
Keywords :
diffraction gratings; laser cavity resonators; laser modes; laser tuning; optical couplers; semiconductor lasers; chirped diffraction grating; continuous tuning; extended-cavity diode laser; external coupler; frequency 8.4 THz; laser output power; linear translation; mode-hop-free tuning; power 3 mW; wavelength 1550 nm; Diffraction gratings; Diode lasers; Laser tuning; Lenses; Extended-cavity diode lasers (ECDLs); mode-hop-free tuning; semiconductor lasers; tunable lasers; varied line-space gratings;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2011.2111359
