08050307 is referenced by 33 patents and cites 176 patents.

A compact mid-IR laser device utilizes a quantum cascade laser to provide mid-IR frequencies suitable for use in molecular detection by signature absorption spectra. The compact nature of the device is obtained owing to an efficient heat transfer structure, the use of a small diameter aspheric lens and a monolithic assembly structure to hold the optical elements in a fixed position relative to one another. Efficient heat transfer is achieved using a thermoelectric cooler TEC combined with a high thermal conductivity heat spreader onto which the quantum cascade laser is thermally coupled. The heat spreader not only serves to dissipate heat and conduct same to the TEC, but also serves as an optical platform to secure the optical elements within the housing in a fixed relationship relative on one another.

Title
Compact mid-IR laser
Application Number
12/987830
Publication Number
8050307 (B2)
Application Date
January 10, 2011
Publication Date
November 1, 2011
Inventor
David F Arnone
Mountain View
CA, US
Timothy Day
Poway
CA, US
Agent
Roeder & Broder
Assignee
Daylight Solutions
CA, US
IPC
H01S 3/30
H01S 3/04
H01S 3/08
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