Overview of UniMir 14.9µm – 674 cm-1: Narrow Linewidth Gas Sensing QCL
Perfect for benzene environmental monitoring, this UniMir 14.9µm (674 cm-1) model is a single-mode DFB QCL, operating in CW mode with 5mW output power (with the base plate of the HHL-package at 20oC). The full tunable range is >2cm-1, while the continuous tuning range, free from ‘mode hopping’ is >0.5cm-1.
The groundbreaking UniMir line of long-wavelength, single-frequency DFB QCLs from mirSense are now commercially available in a sealed High Heat Load (HHL) package, with integrated collimating lens, thermistor, and thermoelectric cooler (TEC), well suited for integration into systems, or as a stand-alone turnkey system for R&D and detection applications. These lasers, operated in CW or in pulsed mode, emit a maximum power of 5 to 10mW (<15µm) at room temperature. By controlling the chip’s operating temperature through the Peltier element inside the laser’s package, customers tune the emission wavelength without mode hopping, while maintaining single longitudinal mode operation. The technology’s versatility allows them to address any wavelength between 10 and 18µm in CW and up to 21µm in pulsed mode, opening the way for high-resolution spectroscopy applications in this spectral range, notably for the detection of BTEX, but also CH3I, HCN and many other compounds.
UniMir 14.9µm Features:
- DFB Single-Mode QCL
- 14.9µm (674 cm-1) for benzene detection
- 5mW CW output power
- >2 cm-1 wavelength range
- >0.5cm-1 Mode-Hop-Free tuning range
- > 25dB side mode suppression ratio
- <100MHz linewidth
- <10mrad divergence
- TEM00 beam quality
- 4mm beam diameter
- Vertically linearly polarized