Resources Contact Us Home
Compact Mid-IR laser

Image Number 10 for United States Patent #7873094.

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. The compact housing size may be approximately 20 cm.times.20 cm.times.20 cm or less. 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. A small diameter aspheric lens may have a diameter of 10 mm or less and is positioned to provided a collimated beam output from the quantum cascade laser. The housing is hermetically sealed to provide a rugged, light weight portable MIR laser source.

  Recently Added Patents
Low power fir filter in multi-MAC architecture
Attachment hardware
Method for supporting idle mode in wireless local area network system
Device for displaying the energy variation of an aircraft, corresponding method and system for displaying the energy variation
Preparation method of dihydroindene amide compounds, their pharmaceutical compositions containing compounds thereof and use as protein kinases inhibitor
Method and apparatus in which call signaling messages bypass in-transparent switching nodes or networks
  Randomly Featured Patents
Method of manufacturing a semiconductor device comprising a field effect transistor
Light emitting device
Multichannel time division multiplexed trunk transmission link
Electronic parts substrate and method for manufacturing the same
Data processing apparatus
Process for the production of metal soaps
Integrated circuit with electromagnetic intrachip communication and methods for use therewith
Miniature action toy
Electrical connector with secondary lock
Methods and systems for extracting a joint probability from a map decision device and processing a signal using the joint probability information