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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:31 |
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Conference: Bucharest University Faculty of Physics 2005 Meeting
Section: Optics, Spectroscopy, Plasma and Lasers
Title:
Laser diode spectral characteristics improvement
Authors:
Tomy Acsente, Cipriana Mandache
Affiliation:
National Institute for Laser, Plasma and Radiation Physics
E-mail
tomy@alpha2.infim.ro
Keywords:
laser diode, mode hope, extended cavity
Abstract:
Semiconductor laser diodes are compact and robust devices, easy to use and control but also present numerous limitations: multi-mode operation, mode hopes and broad linewidth. Despite laser diodes can be tuned by varying the temperature and current, the tuning range present gaps due to the mode hopes. For this reason the laser diodes can not meet many applications.
This paper will present a simple method for laser diode mode hope observation using common physics laboratory devices. Improvement of laser diodes spectral characteristics by using a Littrow extended cavity will be also presented.
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