Flat-surface buried heterostructure distributed feedback lasers operating in a single longitudinal mode at 1. 5. mu. m with low chirp

Journal Article · Mon Dec 21 04:00:00 EST 1987 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.98977· OSTI ID:5843809

Nilsson, S; Tanbun-Ek, T; Broberg, B

Distributed feedback lasers emitting in a stable dynamic single mode at 1.5 ..mu..m wavelength in a temperature range of more than 50 /sup 0/C have been developed using the so-called flat-surface buried heterostructure. Threshold currents as low as 14 mA in cw (8 mA in pulse) operating and output powers as high as 20 mW/facet were obtained. By detuning the Bragg wavelength to the shorter wavelength side of the gain peak, and by reducing the confinement factor, a wavelength chirp as a function of modulation current as low as 0.003 nm/mA has been obtained. This value corresponds to a total chirp of 0.1--0.2 nm under normal modulation conditions.

• Research Organization: Institute of Microwave Technology, Box 70033, S-100 44 Stockholm, Sweden
• OSTI ID: 5843809
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 51:25; ISSN APPLA
• Country of Publication: United States
• Language: English

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42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
CURRENTS
DATA
ELECTRIC CURRENTS
EXPERIMENTAL DATA
FABRICATION
HETEROJUNCTIONS
INFORMATION
JUNCTIONS
LASERS
MODULATION
NUMERICAL DATA
OPERATION
PERFORMANCE
POWER
SEMICONDUCTOR DEVICES
SEMICONDUCTOR JUNCTIONS
SEMICONDUCTOR LASERS
THRESHOLD CURRENT
TUNING