Tunable Laser - CW Mode Hop Free

The Tunable Continuous Wave Mode Hop Free (CW-MHF) External Cavity Quantum Cascade Laser (ECqcL™) was developed for high-resolution spectroscopy. This high-end system provides “continuous tunability,” also known as Mode Hop Free tuning, over a typical range of 60 cm^-1. The combination of a narrow linewidth and excellent wavelength control allows for highly resolved spectral features using broad survey scans. Wavelength modulation over smaller ranges is also a standard feature of the CW-MHF system.

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Features &
Benefits
Product Details
Specifications
Industries &
Applications
Literature &
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Features

Wavelengths offered: 4.4, 4.5, 4.6, 4.9, 5.3, 6.1, 7.8, 9.5, 10.5 µm
Mode-Hop-Free tuning range: 60 cm^-1 Typical , >= 30 cm^-1 Guaranteed
CW output power: >70 mW Typical
Wavelength accuracy: ±0.5 cm^-1 (±15GHz), unidirectional
Linewidth: < 45 MHz
Controller: includes TEC and laser driver
Room temperature operation (water chiller required for CW operation)
Wavelength modulation capable for high resolution spectroscopy

Benefits

Center wavelengths covering most of the mid-IR
Broad tuning range – see more molecules per laser
See CO₂, CO, NO, N₂O, NO₂, NH₃, CH₄, H₂O etc…
Integrated system for easy use – manual & computer control
Highly collimated beam for more usable photons
Modulate wavelength narrow range or scan continuously
No cryogenic cooling (water chiller required for CW mode)

Product Details

Daylight Solutions is pleased to provide the world’s first broadly tunable, room-temperature, mid-IR lasers based on quantum cascade laser technology. Center wavelengths span the mid-IR spectrum from 4 μm to 12 μm and provide continuous tuning of up to 100 cm-1 (±5% for a 10-μm center wavelength).

Offering excellent linewidth characteristics, these CW lasers tune mode-hop-free across that range. The survey scanning is complemented by PZT and current modulation to perform both wavelength and frequency modulation spectroscopy. All lasers offer superb wavelength accuracy and stability throughout their tuning ranges.

Designed by the world’s leading experts in tunable lasers, these sources are small, robust, and utilize specially designed miniature lenses to optimize system performance. Each system integrates TEC technology for behind-the-scenes temperature control, so only a water chiller is needed—no cryogenic cooling!

To round out the turnkey system, each tunable laser is shipped with an intuitive, easy-to-use multifunction controller. The controller is accessible to a PC through RS-232 and GPIB interfaces; future firmware upgrades will enable the USB interface. This allows external control of the tunable laser for a variety of applications, including scientific research and its development. The controller is also manually accessible through its easy-to-use front panel.

Daylight Solutions’ overall system leverages the last 15 years of tunable-laser development and manufacturing, and incorporates the company’s latest patent-pending tuning and packaging technology for the mid-IR.

The availability of robust, easy-to-use tunable lasers in the 4 μm to 12 μm region of the spectrum is now a reality. These lasers enable application research in the field of molecular detection and imaging. Common applications include industrial process control, the detection of biomarkers in the breath, cellular imaging, and the detection of chemical and biological agents.

Daylight Solutions' mid-IR laser platform technology opens up the mid-IR to all researchers—today.

Call today for pricing and availability of specific wavelengths

Specifications

Product Specifications
Room Temperature^† — No Cryogenic Cooling (Chiller required for CW operation)
Operation	CW-MHF
Center Wavelengths (units in μm)	4.4^‡, 4.5, 4.6, 4.9, 5.3, 6.1, 7.8^‡, 9.5, 10.5
Optical Parameters
Tuning Range	Guaranteed >= 30cm^-1 min., 60cm^-1 Typical
Minimum Avg. Power	1 mW
Maximum Avg. Power	>70 mW Typical
Power Variations	<1% over 5 mins., <4% avg. over 1 day
Linewidth	<45 MHz FWHM
Beam Divergence	<5 mrad
Beam Waist	30–50 cm Typical (from exit port)
Polarization	Linear 100:1, Horiz. Direction
Pointing Stability	<1 mrad up to 100cm^-1 tuning
Spot Size Minimum	<2.5 mm 1/e Electric Field Dia.
Beam Quality	TEM00
Electrical Parameters
CW-MHF	True Continuous Wave, Mode Hop Free operation
CW	Extended CW tuning range also included
Triggering	Internal and External Pulse, External Trigger
Scanning	Uni- and Bi-directional survey scan, Start, Stop, Step, Pause scanning programmable
External Interface	RS-232, GPIB supported, USB supported in 2010
Wavelength Modulation	PZT Modulation up to 1 cm^-1 at 100 Hz., QCL Current Modulation up to 0.05 cm-1 at 0.01 to 2 MHz
Mechanical Parameters
Full Range Tuning Speed	<3 sec for 100 cm^-1 scan
Display Accuracy	±0.5 cm^-1 uni-directional
Display Repeatability	<0.02 cm^-1 uni-directional
QCL Operational Temp	15°C Typical
Relative Temp	±5°C Programmable
Package Size	6.5" L × 4.45" W × 3.81" H