Self-pulsation in the output intensity and spectrum of GaAs-AlGaAs cw diode lasers coupled to a frequency-selective external optical cavity

Journal Article · Sun May 01 04:00:00 EDT 1977 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.323922· OSTI ID:7323339

Risch, C; Voumard, C

The laser emission of a cw diode laser coupled to an external cavity is self-pulsing at a frequency of 3--30 MHz, that is, two orders of magnitude lower than the resonance frequencies of the external cavity (typically 0.5 m long). The low-frequency self-pulsation is also present with a wavelength-selective external cavity using a grating as a reflector that narrows the laser emission to a single longitudinal mode. This paper describes some of the characteristics of the self-pulsation such as the pulse shape, the frequency dependence, the shift of the wavelength of the lasing mode during a pulse, and their dependence on the wavelength selection by the grating.

• Research Organization: Institute of Applied Physics, University of Berne, CH-3012-Berne, Switzerland
• OSTI ID: 7323339
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 48:5; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
EMISSION SPECTRA
FREQUENCY DEPENDENCE
JUNCTION DIODES
LASERS
MODULATION
OPTICAL MODES
OPTICAL PROPERTIES
OSCILLATION MODES
PHYSICAL PROPERTIES
PULSES
REFLECTIVITY
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
SEMICONDUCTOR LASERS
SPECTRA
SURFACE PROPERTIES