CW-MHF Mid-IR Laser: Advanced Mid-IR Spectroscopy Solutions

The best instrument available for high-resolution mid-IR spectroscopy is the CW-MHF Mid-IR Laser. For users who want phase-continuous tuning to prevent spectral line hopping, high spectral resolution, or both,the DRS Daylight CW-Mode-Hop-Free laser is a suitable option.

In any laser system, achieving narrow-linewidth functioning and MHF tuning is challenging. The CW-MHF system, which is unique in the industry, offers MHF tuning to > 30 cm^–1 and frequently to > 100 cm^–1, together with open-loop linewidths of ≤ 5 MHz (around 100 ms).

The CW-MHF laser achieves this performance using a highly stable laser cavity intended to limit sensitivity to acoustic perturbation, led by finite element analysis. This design draws on years of expertise in precision engineering and manufacturing.

The CW-MHF laser offers two methods for changing wavelength: current modulation and PZT 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

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)

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

Techniques andApplications

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

Photoacoustic

Gas phase

High resolution

Rotational-vibrational

Cavity ring-down

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.