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
System for and method of remotely auditing inventoried assets
Leaky wave mode solar receiver
Display apparatus, a method for a display control, and program
Synthesis of amines and intermediates for the synthesis thereof
Image stabilization apparatus and image pickup apparatus
Identifying users of remote sessions
System and method for infrared dongle
  Randomly Featured Patents
Secure, distributed hierarchical convergence network
Connector for transferring high frequency signals
Shared length cell for improved capacitance
Suspension system for a flexible optical membrane
Physical implementation of switching fabrics constructed from recursive 2-stage interconnection
Optional telephone answering system
Gravity stable surfactant flooding in gas depleted reservoirs
Motor vehicle deceleration data acquisition and processing apparatus and methodology
Method and fixture for handling and processing die components
Chemical treatment for improved pipe line flushing