Fourier-transform-limited, single-mode picosecond optical pulse generation by a distributed feedback InGaAsP diode laser

Journal Article · Mon Oct 15 04:00:00 EDT 1984 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.95421· OSTI ID:6459710

Onodera, N; Ito, H; Inaba, H

The first generation of bandwidth-limited, single-mode ultrashort optical pulses with excellent coherency from a distributed feedback InGaAsP diode laser at 1.3 ..mu..m by the method of strong rf modulation superimposed on the dc bias current is reported. It was realized only by the laser diode itself with no requirement of any other optical elements or external cavity or careful optical control. The measurement of time-bandwidth product of the generated coherent picosecond pulses at 500-MHz modulation gave the value of 0.38 for Lorentzian pulse shape with a full width at half-maximum of nearly 34 ps, which proved definitely the Fourier-transform-limited character. By changing the dc bias current from positive to negative, the pulse width was demonstrated to be continuously controllable over a range of approximately twice to three times depending upon the modulation frequency.

• Research Organization: Research Institute of Electrical Communication, Tohoku University, Katahira 2-1-1, Sendai 980, Japan
• OSTI ID: 6459710
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 45:8; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ARSENIC COMPOUNDS
ARSENIDES
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
GALLIUM PHOSPHIDES
INDIUM ARSENIDES
INDIUM COMPOUNDS
INDIUM PHOSPHIDES
LASERS
LINE WIDTHS
MODULATION
OPERATION
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PNICTIDES
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS