Title :
Finite-element modeling predicts possibility of thermoelectrically cooled lead-salt diode lasers
Author :
Lewelling, Kevin R. ; McCann, Patrick J.
Author_Institution :
Sch. of Electr. & Comput. Eng., Oklahoma Univ., Norman, OK, USA
fDate :
3/1/1997 12:00:00 AM
Abstract :
Finite-element thermal modeling shows that thermoelectric cooled operation of IV-VI semiconductor diode lasers is possible by replacing the thermally resistive lead-salt substrate with copper. Contrasting thermal models reveal a 63 K decrease in active region temperature under normal operating conditions when PbTe is replaced with copper. This improved device structure can be obtained by using epitaxial-lift-off techniques similar to those developed for III-V semiconductor devices.
Keywords :
II-VI semiconductors; cooling; finite element analysis; heat sinks; laser theory; lead compounds; semiconductor device models; semiconductor lasers; thermoelectricity; 63 K; III-V semiconductor devices; IV-VI semiconductor diode lasers; PbTe; active region temperature; device structure; epitaxial-lift-off techniques; finite-element modeling; finite-element thermal modeling; lead-salt diode lasers; normal operating conditions; thermal models; thermally resistive lead-salt substrate; thermoelectric cooled operation; thermoelectrically cooled; Copper; Diode lasers; Finite element methods; Laser modes; Lead compounds; Predictive models; Semiconductor diodes; Semiconductor lasers; Thermal resistance; Thermoelectricity;
Journal_Title :
Photonics Technology Letters, IEEE
