The uniMir QCL line of narrow linewidth Quantum Cascade Lasers (QCL Series) from mirSense are the perfect lasers for gas detection applications. Offering groundbreaking new wavelengths, including 11.3µm, 13.4µm, 14µm, and 14.9µm, these rugged, lightweight, ultra-compact QCLs produce up to 10mW CW, and are available in HHL and turnkey configurations.
mirSense uses the well-known Distributed Feedback (DFB) effect and a unique patented approach to achieve single frequency sources. This technology uses top metal grating to provide the feedback in the cavity allowing versatility, reproducibility and stability in wavelengths. The QCLs optimised for 10µm to 17µm opertion are based on a new class of Distributed Feedback (DFB) QCLs that have been developed that make use of different III-V semiconductor materials to fabricate the active region of the lasers. These materials are part of the antimonide family. Check out our blog entry to find out more about how these ground breaking new QCLs are enabling mid-IR absorption spectroscopy on BTEX molecules.
The uniMir lasers are mounted on a thermoelectric cooler (TEC) inside a sealed High Heat Load (HHL) package integrating a collimation lens and a thermistor to readout the laser chip temperature. By controlling the chip’s operating temperature through the TEC element inside the laser’s package, customers tune the emission wavelength without mode hopping while keeping a single-mode operation.
| Wavelength (µm) | Wavelength (cm-1) | Measurable Gases |
|---|---|---|
| ~11.3µm | ~885cm-1 | CH3i Methyl Iodide |
| ~12.6µm | ~795cm-1 | p-Xylene |
| ~13µm | ~13µm | m-Xylene |
| ~13.5µm | ~746cm-1 | o-Xylene |
| ~13.7µm | ~729cm-1 | Toluene |
| ~14µm | ~713cm-1 | HCn Hydrogen cyanide |
| ~14.3µm | ~697cm-1 | Ethylbenzene |
| ~14.4µm | ~694cm-1 | Toluene |
| ~14.8µm | ~674cm-1 | Benzene |
| ~15.9µm | ~628cm-1 | UF6 Uranium hexafluoride |
| ~16µm | ~624cm-1 | Neptunium NpF6 |
| ~16.1µm | ~619cm-1 | Plutonium PuF6 |
| ~17.2µm | ~581cm-1 | Nitrous oxide N2O |
pollution monitoring,
process control
non-invasive medical monitoring
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Photonic Solutions Ltd
Unit 2.2 Quantum Court
Heriot-Watt University Research Park
Edinburgh
EH14 4AP
