External-cavity-induced nonlinearities in the light versus current characteristic of (Ga,Al)As continuous-wave diode lasers

Journal Article · Mon Aug 01 04:00:00 EDT 1977 · IEEE J. Quant. Electron.; (United States)

DOI:https://doi.org/10.1109/JQE.1977.1069418· OSTI ID:5267944

Risch, C; Voumard, C; Reinhart, F K; Salathe, R

(Ga,Al)As cw diode lasers with a linear light output L versus pumping current J characteristic have been coupled to an external optical cavity. This coupling is shown to induce nonlinearities in the L(J) characteristic. The light output of external-cavity-coupled cw diode lasers is self-pulsing at a resonance frequency of the external cavity and/or at a low frequency in the range of 3 to 30 MHz. It is found that irregularities in the light output-current characteristic are strictly related to changes of the type of self-pulsation. On the basis of separate measurements of the stimulated and spontaneous emission, it appears that the coupling to the external cavity affects the ratio between stimulated and spontaneous emission but not the total radiative recombination rate. It is supposed that the L(J) irregularities are due to variations of the stimulated-emission rate that are related to the external-cavity-induced instability in the time domain.

• Research Organization: Univ., Bern
• OSTI ID: 5267944
• Journal Information: IEEE J. Quant. Electron.; (United States), Journal Name: IEEE J. Quant. Electron.; (United States) Vol. QE-13:8; ISSN IEJQA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ALUMINIUM ARSENIDES
ALUMINIUM COMPOUNDS
ARSENIC COMPOUNDS
ARSENIDES
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
INSTABILITY
LASERS
PNICTIDES
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS