High power and narrow spectral linewidth 1. 5. mu. m MQW-DFB-LD's low FM dip frequency

FM response as well as spectral linewidth are characterized for 1.5 {mu}m multiple quantum well distributed feedback laser diodes (MQW-DFB-LD's). It was experimentally demonstrated that the FM dip frequency where AM-FM phase delay rotates by 180{degrees} was lowered with reduced thermal resista...

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Bibliographic Details
Published in:IEEE photonics technology letters 1990-11, Vol.2:11
Main Authors: Kitamura, M., Yamazaki, H., Ono, T., Sasaki, T., Hamao, N., Mito, I.
Format: Article
Language:English
Subjects:
426002 - Engineering- Lasers & Masers- (1990-)
ELECTROMAGNETIC RADIATION
ENGINEERING
FEEDBACK
FREQUENCY MODULATION
FREQUENCY RANGE
HETEROJUNCTIONS
INFRARED RADIATION
JUNCTIONS
LASERS
LINE WIDTHS
MHZ RANGE
MHZ RANGE 01-100
MODULATION
NEAR INFRARED RADIATION
POWER
RADIATIONS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
SEMICONDUCTOR JUNCTIONS
SEMICONDUCTOR LASERS
SOLID STATE LASERS
TEMPERATURE EFFECTS
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Summary:FM response as well as spectral linewidth are characterized for 1.5 {mu}m multiple quantum well distributed feedback laser diodes (MQW-DFB-LD's). It was experimentally demonstrated that the FM dip frequency where AM-FM phase delay rotates by 180{degrees} was lowered with reduced thermal resistance and reduced threshold current density, due to reduced thermal effect and enhanced carrier effect. 1.5 {mu}m MQW-DFB-LD's have been developed with lower than 20 kHz FM dip frequency and relatively flat FM response, as well as less than 1 MHz spectral linewidth in the 10--35 mW light output power range.
ISSN:1041-1135
1941-0174
DOI:10.1109/68.63218