DocumentCode :
1070038
Title :
Homojunction lead-tin-telluride diode lasers with increased frequency tuning range
Author :
Lo, Wayne
Author_Institution :
Research Laboratories, General Motors Corporation, Warren, MI
Volume :
13
Issue :
8
fYear :
1977
fDate :
8/1/1977 12:00:00 AM
Firstpage :
591
Lastpage :
595
Abstract :
Homojunction lead-tin-telluride (Pb1-x Snx Te) diode lasers with a CW frequency tuning range of 216 cm-1(near 
m) were fabricated from a Te-rich, ingot-nucleated crystal. The increased frequency tuning range is attributed to a reduced threshold Current density, which allows a higher operating temperature. At a heat-sink temperature of 11.2 K, the threshold current density (Jth ) is 212 A cm-2. The highest heat-sink temperature recorded for these lasers is 61 K with a corresponding Jth of 
A cm-2. The longest, continuous current tuning (at 17 K) of one mode is 2.4 cm-1. At a constant current, the temperature tuning of the same mode is 0.9 cm-1. The lasers generally emit a single mode for current levels below 125 percent of Jth . Single-mode, single-ended output powers up to 0.9 mW have been recorded.
m) were fabricated from a Te-rich, ingot-nucleated crystal. The increased frequency tuning range is attributed to a reduced threshold Current density, which allows a higher operating temperature. At a heat-sink temperature of 11.2 K, the threshold current density (J A cm-2. The longest, continuous current tuning (at 17 K) of one mode is 2.4 cm-1. At a constant current, the temperature tuning of the same mode is 0.9 cm-1. The lasers generally emit a single mode for current levels below 125 percent of JKeywords :
Diode lasers; Frequency; Laser modes; Laser tuning; Lead; Power generation; Tellurium; Temperature distribution; Threshold current; Tin;
fLanguage :
English
Journal_Title :
Quantum Electronics, IEEE Journal of
Publisher :
ieee
ISSN :
0018-9197
Type :
jour
DOI :
10.1109/JQE.1977.1069429
Filename :
1069429
Link To Document :
