The CW-MHF Mid-IR Laser is ideal for high-resolution mid-IR spectroscopy. If users require excellent spectral resolution, phase-continuous tuning to avoid hopping across spectral lines, or both, the DRS Daylight CW-Mode-Hop-Free laser will fulfill those requirements.
Narrow-linewidth operation and MHF tuning are extremely difficult to achieve in any laser system. The CW-MHF system is unique in the market, with open-loop line widths of ≤ 5 MHz (over 100 ms) and MHF tuning to > 30 cm–1, and often > 100 cm–1.
The CW-MHF laser achieves this performance via years of precise engineering and manufacturing knowledge, as well as a very stable laser cavity that was engineered to be less susceptible to acoustic perturbation using finite element analysis.
The CW-MHF laser also has two techniques to adjust wavelength: PZT or current modulation. This unique combination of broad MHF tuning, narrow-linewidth operation, and modulation capabilities allows for high-resolution spectroscopy and/or locking to a wavelength reference.
Highlights
Features & benefits:
- Wavelength accuracy of ± 0.5 cm–1 (± 15 GHz), unidirectional
- Ultra-quiet, with RIN as low as -140 dBc/Hz, enables higher-SNR spectroscopy
- Superb TEM00 beam quality, low beam pointing
- SideKick™ controller, GUI, and SDK included with all systems
- Proprietary HFQD™ circuitry to safeguard the chips
- Wavelength availability: <4 to >11 µm
- MHF tuning range: ≥ 30 to 100 cm–1 (typical, depending on model)
- CW power > 70 mW typical*
- Linewidth (FWHM < 5 MHz (10 ms) and < 10 MHz (1s)
Techniques and applications
The CW–MHF Mid-IR Laser's industry-leading performance and distinctive feature set make numerous sensitive spectroscopy methods and applications possible.
Spectroscopy techniques
- Photoacoustic
- Gas phase
- High resolution
- Rotational-vibrational
- Cavity ring-down
Applications
- Process control
- Nanoscale imaging
- Biomarker detection in breath
- Chemical and biological agent sensing
- IR sensor development
- Environmental monitoring
- Fence line monitoring
- Combustion diagnostics
- TIC, VOC, GHG, and explosives detection
Product specifications
Source: DRS Daylight Solutions Inc.
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| Operation |
Continuous wave, mode-hop-free (CW-MHF) and extended CW tuning |
| Center Wavelength |
Availability < 4 to > 11 µm |