Tunable Laser - CW/Pulsed

The Tunable CW/Pulsed External Cavity Quantum Cascade Lasr (ECqcL™) system is the laboratory work horse, providing the same broad tunability as the Tunable Pulsed system. However, in addition to Pulsed mode, the system also offers Continuous Wave (CW) operation.

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

Features

Wavelengths offered: 4.2, 4.4, 4.5, 4.6, 4.9, 5.3, 6.1, 7.4, 7.8, 8.1, 8.8, 9.5, 10.5 µm
Modes: Laser may operate in either CW or Pulsed mode
Tuning range: 100 cm^-1 Typical, >70 cm^-1 Guaranteed
CW output power: >70 mW Typical
CW linewidth: <100 MHz
Controller: includes TEC and laser driver
Room temperature operation (water chiller required for CW operation)

Benefits

Center wavelengths covering most of the mid-IR
Broad tuning range – see more molecules per laser
Integrated system for easy use – manual & computer control
Highly collimated beam for more usable photons
Park on a single wavelength 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 mid-IR lasers based on quantum cascade 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). CW/Pulsed lasers operate in both pulsed and CW modes. This laser is appropriate for applications requiring wavelength stability, though does not tune mode-hop-free in CW mode.

Designed by the world’s leading experts in tunable lasers, these sourcesare 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 when operating in CW mode—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 4μm to 12 μm region of the spectrum is now a reality. These lasers enable application research in the field of molecular detection and imaging, including applications such as industrial process controls, 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. Please see our web site for information on other mid-IR laser systems, including tunable CW mode-hop-free laser systems.

Call today for pricing and availability of specific wavelengths.

Specifications

Product Specifications
Room Temperature^† — No Cryogenic Cooling (Water Chiller required for CW operation)
Operation	CW and Pulsed (for Pulsed operating parameters see Tunable Pulsed Laser Datasheet)
Center Wavelengths (units in μm)	4.2, 4.4, 4.5, 4.6, 4.9, 5.3, 6.1, 7.4, 7.8, 8.1, 8.8^‡, 9.5, 10.5
Optical Parameters
Tuning Range	>70 cm^-1 Guaranteed, 100 cm^-1 Typical
Peak Power	Refer to Tunable Pulsed Laser Datasheet
Minimum Avg. Power	1 mW
Maximum Avg. Power	>70 mW Typical
Power Variations	<5% short term, <1 minute, <5% avg. over 1 hr.
Linewidth	<100 MHz FWHM
Beam Divergence	<5 mrad
Beam Waist	30–50 cm Typical (from exit port)
Polarization	Linear 100:1, Vertical Direction
Pointing Stability	<1 mrad up to 100 cm^-1 tuning
Spot Size Minimum	<2.5 mm 1/e Electric Field Dia.
Beam Quality	TEM00
Electrical Parameters
Pulsed	Refer to Pulsed Laser Datasheet
CW	True Continuous Wave operation
Scanning	Unidirectional and bidirectional survey scan, Start, Stop, Step, Pause scanning programmable
External Interface	RS-232, GPIB supported, USB supported in 2010
Wavelength Modulation	Optional QCL Current Modulation up to 0.05 cm-1 at 0.01 to 2 MHz
Mechanical Parameters
Full Range Tuning Speed	<1 sec for 100 cm^-1 scan
Display Accuracy	±1.5 cm^-1 unidirectional
Display Repeatability	<0.02 cm^-1 unidirectional
QCL Operational Temp	15°C Typical
Relative Temp	±5°C Programmable
Package Size	5.5" L × 3.45" W × 3.31" H