Quantum Cascade Lasers

TO3 CW lasers

Lasers with low dissipation below 3W are available from Alpes Lasers at various wavelengths, including the important wavelengths of 7.8 μm (CH4 absorption), 5.25 μm (NO absorption), 4.6 μm (N2O absorption) and 4.3 μm (CO2 absorption).

In a recently published Optics Express article, the Alpes development team discusses the research that was required to develop such low-dissipation lasers, and in particular the optimization of facet reflectivity which allowed both low-dissipation and high-power lasers to be produced from the same underlying material.

At such low heat dissipation levels, even CW lasers operating at 100%
duty cycle can be encapsulated in TO3 housings. These housings have a much smaller footprint than the LLH or HHL options, and can be especially useful for embedded devices, applications in harsh thermal environments or for applications where high electrical power is not readily available.TO3 housings are available with or without a collimating lens.

We present here two sample devices of CW lasers performance as  encapsulated in TO3-L housing. These devices operate at 4.3 μm or 7.8 μm. Other wavelengths are available on demand - contact us with any inquiry!

TO3-L-21 Datasheet
TO3-L-22 Datasheet
read more

New wavelengths

New wavelengths are now available for the High Power QCL devices. Lasers with more than 1W of average power are now available from stock at the following central wavelengths:

  • 4.55 microns
  • 4.65 microns
  • 4.90 microns

read more

Extended Tuning DFB Sources

Alpes Lasers introduces a new class of lasers: the QC-XT Laser SourcesQC-XT Lasers allow a very large tuning range of 2% of the central wavelength (40 cm-1 at 5 microns).
read more

Faraday Rotation Spectroscopy

A Quantum Cascade Laser from Alpes Lasers is used to detect Nitric Oxide isotopes that play a role in the formation of the Ozone.  The Faraday Rotation Spectroscopy method is sensitive enough to detect gases to the degree of parts-per-billion (0.53ppbv/Hz^1/2 for 15NO).

read more