CW-MHF Mid-IR Laser: The Ultimate Tool for High-Resolution Mid-IR Spectroscopy

The CW-MHF Mid-IR Laser is the ideal instrument for high-resolution mid-IR spectroscopy. The DRS Daylight CW-Mode-Hop-Free laser is ideal for those requiring high spectral resolution, phase-continuous tuning to avoid spectral line jumps, or both.

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 and an extremely stable laser cavity engineered to be less susceptible to acoustic perturbation using finite element analysis. The CW-MHF laser also has two techniques for adjusting wavelength: PZT or current modulation.

This unique combination of modulation capabilities, narrow-linewidth operation, and broad MHF tuning allows locking to a wavelength reference and/or high-resolution spectroscopy.

Highlights

Features & Benefits

Proprietary HFQD™ technology to safeguard the chips

Superb TEM₀₀ beam quality, low beam pointing

Wavelength availability: < 4 to > 11 µm

SideKick™ controller, GUI, and SDK are included with all systems

Ultra-quiet, with RIN as low as -140 dBc/Hz, enables higher-SNR spectroscopy

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)

Wavelength accuracy of ± 0.5 cm^-1 (± 15 GHz), unidirectional

Techniques & Applications

The CW-MHF Mid-IR Laser’s distinct feature set and industry-leading performance allow for a diverse variety of sensitive spectroscopy techniques and applications:

Spectroscopy techniques

High resolution

Rotational-vibrational

Cavity ring-down

Photoacoustic

Gas phase

Applications

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

Process control

Product Specifications

Source: DRS Daylight Solutions Inc.