Title :
A Spectrum-narrowed, Wavelength and Temperature Stabilized Broad Area Laser Using a Subwavelength Resonant Grating Filter Feedback
Author :
Bai, Shufeng ; Chou, Stephen Y.
Author_Institution :
Dept. of Electr. Eng., Princeton Univ., NJ
Abstract :
In this paper, we demonstrate spectrum narrowing and wavelength stabilization (both thermal and temporal) with a subwavelength resonant grating (SRG) for a single broad area laser (BAL) emitter running at moderate pump current. Our method is simple, low cost and easy to implement. A narrower spectrum width and much higher stability could be achieved on a BAL with antireflective coated front facet. Using the same approach to narrow and stabilize all the emitters on a laser diode array is under way
Keywords :
antireflection coatings; diffraction gratings; laser beams; laser cavity resonators; laser feedback; laser stability; optical filters; semiconductor lasers; antireflective coating; broad area laser emitter; high-power laser diodes; spectrum narrowing; subwavelength resonant grating filter feedback; temperature stabilization; wavelength stabilization; Costs; Filters; Gratings; Laser excitation; Laser feedback; Laser modes; Laser stability; Pump lasers; Resonance; Temperature;
Conference_Titel :
Lasers and Electro-Optics Society, 2006. LEOS 2006. 19th Annual Meeting of the IEEE
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-9555-7
Electronic_ISBN :
0-7803-9555-7
DOI :
10.1109/LEOS.2006.278868
