Title :
Electronic DFB laser switching for continuous wave cavity ring-down spectroscopy
Author :
Foldes, T. ; Cermak, Petr ; Rakovsky, J. ; Macko, M. ; Kristof, J. ; Veis, P. ; Macko, Peter
Author_Institution :
Dept. of Exp. Phys., Comenius Univ., Bratislava, Slovakia
Abstract :
Continuous wave cavity ring-down spectroscopy using an electronically switched telecom distributed feedback laser module is demonstrated. By adding a compensation waveform current to the step-function switched laser current the laser wavelength stabilisation time is reduced to about 4 ms corresponding to a 200 Hz utmost ring-down transient repetition rate.
Keywords :
distributed feedback lasers; electronic switching systems; laser cavity resonators; laser stability; compensation waveform current; continuous wave cavity ring-down spectroscopy; distributed feedback laser; electronic DFB laser switching;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.2360
