Effects of strain in multiple quantum well distributed feedback lasers
作者:
T. Tanbun‐Ek,
R. A. Logan,
S. N. G. Chu,
A. M. Sergent,
K. W. Wecht,
期刊:
Applied Physics Letters
(AIP Available online 1990)
卷期:
Volume 57,
issue 21
页码: 2184-2186
ISSN:0003-6951
年代: 1990
DOI:10.1063/1.103929
出版商: AIP
数据来源: AIP
摘要:
A survey of graded‐index separate confinement multiple quantum well distributed feedback lasers comparing the effects of strain in the quantum well upon threshold, output power, and linewidth is reported. Lasers with either compressive or tensile strained quantum wells and a long cavity length (890 &mgr;m) show lower threshold current (10–20 mA) as well as lower linewdith power product than lasers with unstrained quantum wells and have a comparable minimum linewidth to the unstrained quantum well lasers. A minimum linewidth as narrow as 900 and 440 kHz for compressive strain and unstrained quantum well lasers, respectively, was obtained at output power of 30 mW. Single longitudinal mode operation with a maximum output power over 80 mW was observed in all the structures.
点击下载:
PDF
(361KB)
返 回