Picosecond frequency chirping and dynamic line broadening in InGaAsP injection lasers under fast excitation
Journal Article
·
· Appl. Phys. Lett.; (United States)
We report the first observation of picosecond time-resolved frequency chirping within each longitudinal mode of InGaAsP injection lasers under fast excitation. This transient phenomenon is responsible for the characteristic dynamic line broadening observed in the spectra of injection lasers under modulation. The frequency chirping invariably shows a ''red shift'' during the optical pulse, and is associated with the refractive index increase due to the carrier density decrease in the process of optical pulse generation. The dynamic line broadening will limit the single-mode fiber transmission bandwidth even when single-longitudinal-mode injection lasers are used.
- Research Organization:
- Bell Laboratories, Holmdel, New Jersey 07733
- OSTI ID:
- 6875469
- Journal Information:
- Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 42:2; ISSN APPLA
- Country of Publication:
- United States
- Language:
- English
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OSTI ID:6634751
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Journal Article
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Related Subjects
42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ARSENIC COMPOUNDS
ARSENIDES
CARRIER DENSITY
CHARGE CARRIERS
ENERGY-LEVEL TRANSITIONS
EXCITATION
FREQUENCY MODULATION
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
GALLIUM PHOSPHIDES
INDIUM ARSENIDES
INDIUM COMPOUNDS
INDIUM PHOSPHIDES
LASERS
LINE BROADENING
MODULATION
OPTICAL PROPERTIES
OSCILLATION MODES
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PHYSICAL PROPERTIES
PNICTIDES
REFRACTIVITY
RESOLUTION
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS
SPECTRA
TIME RESOLUTION
TIMING PROPERTIES
TRANSIENTS
420300* -- Engineering-- Lasers-- (-1989)
ARSENIC COMPOUNDS
ARSENIDES
CARRIER DENSITY
CHARGE CARRIERS
ENERGY-LEVEL TRANSITIONS
EXCITATION
FREQUENCY MODULATION
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
GALLIUM PHOSPHIDES
INDIUM ARSENIDES
INDIUM COMPOUNDS
INDIUM PHOSPHIDES
LASERS
LINE BROADENING
MODULATION
OPTICAL PROPERTIES
OSCILLATION MODES
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PHYSICAL PROPERTIES
PNICTIDES
REFRACTIVITY
RESOLUTION
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS
SPECTRA
TIME RESOLUTION
TIMING PROPERTIES
TRANSIENTS