High power and narrow spectral linewidth 1.5 mum MQW-DFB-LDs with low FM dip frequency

FM response as well as spectral linewidth were characterized for 1.5 mum multiple-quantum-well distributed feedback laser diodes (MQW-DFB-LDs). It was experimentally demonstrated that the FM dip frequency where AM-FM phase delay rotates by 180 deg decreases with reduced thermal resistance and reduce...

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Bibliographic Details
Published in:IEEE photonics technology letters 1990-11, Vol.2 (11), p.778-780
Main Authors: Kitamura, M, Yamazaki, H, Ono, T, Sasaki, T, Hamao, N, Mito, I
Format: Article
Language:English
Online Access:Get full text
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Summary:FM response as well as spectral linewidth were characterized for 1.5 mum multiple-quantum-well distributed feedback laser diodes (MQW-DFB-LDs). It was experimentally demonstrated that the FM dip frequency where AM-FM phase delay rotates by 180 deg decreases with reduced thermal resistance and reduced threshold current density, due to reduced thermal effect and enhanced carrier effect. 1.5-mum MQW-DFB-LDs have been developed with < 20 kHz FM dip frequency and relatively flat FM response, as well as < 1 MHz spectral linewidth, in the 10-35 mW light output power range
ISSN:1041-1135
DOI:10.1109/68.63218