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Contents: Introduction:
QCLs for Gas Sensing in the Mid-IR
Optoelectronic Qualification: NASA Goddard
Raman Spectroscopy: Complete Laser Control
Telecomm Manufacturing
Medical Lasers
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QCLs for Gas Sensing in the Mid-IR

Using Wavelength Electronics' precision temperature controller and low noise Quantum Cascade Laser (QCL) driver, researchers at Princeton University developed a sensor that was designed around a QCL to simultaneously measure nitrous oxide (N2O) and carbon monoxide (CO). The sensor is compact and field-deployable, requiring much less power and having a much smaller footprint and mass than previous sensors, while increasing the accuracy of concentration measurements. The most accurate measurements were 0.15 parts-per-billion-by-volume (ppbv) for N2O and 0.36 ppbv for CO. These accuracies well exceed the requirement of 1 ppbv to be considered "high stability" in the field of atmospheric sensing.

The complete case study is available as CS-LDTC01.
  Utilizing Quantum Cascade Lasers for Gas Sensing in the Mid-Infrared
Utilizing Quantum Cascade Lasers for Gas Sensing in the Mid-Infrared



Optoelectronic Qualification: NASA Goddard

The NASA photonics group uses our WLD3343 laser diode drivers and WLD3393 evaluation boards in their optoelectronic qualification set ups. (See http://photonics.gsfc.nasa.gov.)
  NASA Goddard Optoelectronic Qualification
NASA Goddard Optoelectronic Qualification









Raman Spectroscopy: Complete Laser Control

The WLD3343 and the WTC3243 are used for complete laser control of a Raman spectrometer.
  Raman Spectroscopy: Complete Laser Control
Complete Laser Control









Telecomm Manufacturing

A bank of twenty-five PLD12.5K-CHs is used as a fiber splice test system during telecomm laser manufacturing.
  Telecomm Manufacturing









Medical Lasers

The PLD5K-CH is used to control a surgical laser. The HTC3000 keeps the laser within the appropriate operating temperature.
  Medical Lasers











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