Title :
External-cavity semiconductor laser with 15 nm continuous tuning range
Author :
Favre, F. ; Le Guen, D. ; Simon, J.C. ; Landousies, B.
Author_Institution :
CNET, LAB/ROC/FOG, Lannion, France
Abstract :
A 1.26 ¿m optical amplifier with a facet modal reflectivity below 0.0001 has been used in a 58 mm-long grating external cavity. The lasing wavelength has been continuously tuned without mode hopping over a range of 15 nm by combined translation-rotation of the diffraction grating. A linewidth of 20 kHz has been derived from heterodyne beat frequency measurements between two tunable external-cavity lasers.
Keywords :
laser cavity resonators; semiconductor junction lasers; tuning; 58 mm-long grating external cavity; continuous tuning range 15 nm; facet model reflectivity below 0.0001; heterodyne beat frequency measurements; semiconductor laser; tunable external-cavity lasers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860545
