Bandwidth-limited picosecond pulses from an injection GaAlAs DH laser with an external dispersive cavity

Journal Article · Sat Jun 01 00:00:00 EDT 1985 · IEEE J. Quant. Electron.; (United States)

DOI:https://doi.org/10.1109/JQE.1985.1072720· OSTI ID:6121706

Vasil'ev, P P; Morozov, V N; Sergeev, A B

Mode locking of semiconductor lasers with external dispersive cavities is investigated both experimentally and theoretically. The external cavity consists of a microscope objective and a diffraction grating. Bandwidth-limited tunable picosecond pulses (FWHM about 3 ps and ..delta../tau/...delta gamma.. = 0.30) are obtained with such a configuration. The pulse duration is measured by a second-harmonic generation (SHG) correlation method and an ultrafast streak camera. Theoretical investigations of mode locking based on the time-domain approach and pulse propagation through the elements of the ring laser cavity are carried out. The laser medium is considered to be divided into two parts-the amplifying and absorbing regions. The steady state pulse parameters (duration, energy, and asymmetry) are derived from the computer simulation and are compared with the experiment. The effects of gain and absorber saturation are included in the treatment.

• Research Organization: P.N. Lebedev Physical Institute, Academy of Sciences of the U.S.S.R., Leninsky pr., Moscow
• OSTI ID: 6121706
• Journal Information: IEEE J. Quant. Electron.; (United States), Journal Name: IEEE J. Quant. Electron.; (United States) Vol. QE-21:6; ISSN IEJQA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ALUMINIUM ARSENIDES
ALUMINIUM COMPOUNDS
ARSENIC COMPOUNDS
ARSENIDES
FEASIBILITY STUDIES
FREQUENCY MODULATION
FREQUENCY RANGE
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
GHZ RANGE
LASER CAVITIES
LASERS
MEASURING METHODS
MODE LOCKING
MODULATION
OPTICAL MODES
OSCILLATION MODES
OSCILLATIONS
PNICTIDES
PULSES
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS