The Tunable Pulsed External Cavity Quantum Cascade Laser (ECqcL™) system provides the user with over 100 cm-1 of tunability in less than a second. This translates to tunability of 5% to 10% of the center wavelength. The platform offers adjustable pulse widths anywhere from 40 nsec to 500 nsec and pulse repetition frequencies (PRF) from 50 Hz to 100 kHz. The system operates at room temperature, requiring no external cooling.
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, 9.2, 9.5, 10.5, 11.5 µm
- Tuning range: 100 cm-1 Typical, 75 cm-1 Guaranteed
- Peak power: >250 mW Typical
- Average power maximum: >5 mW Typical (@5% duty cycle)
- Linewidth: <1 cm-1 FWHM
- Controller: includes TEC and laser driver
- Room temperature 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 chiller required
Specifications
| Product Specifications |
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Room Temperature† — No Chiller Required
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Operation
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Pulsed Only
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Center Wavelengths: (units in μm)
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4.2, 4.4, 4.5, 4.6, 4.9, 5.3, 6.1, 7.4, 7.8, 8.1, 8.8, 9.2, 9.5, 10.5, 11.5‡
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Optical Parameters
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Tuning Range
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100cm-1 Typical, 75 cm-1 Guaranteed
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Peak Power
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>250 mW Typical
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Minimum Avg. Power
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1 mW
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Maximum Avg. Power
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>5 mW Typical (@ 5% duty cycle)
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Power Variation
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<5% pulse to pulse, <2% avg. over 1 hr.
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Linewidth
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<1 cm-1 FWHM
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Beam Divergence
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<5 mrad
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Beam Waist
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30–50 cm Typical (from exit port*)
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Polarization
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Linear 100:1, Vertical Direction
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Pointing Stability
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<1 mrad up to 100 cm-1 tuning
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Spot Size Minimum
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<2.5 1/e Electric Field Dia.
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Beam Quality
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TEM00
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Electrical Parameters
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Pulse Width
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40 to 500 nsec (20 ns increments)
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Pulse Repetition Frequency
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0.1 to 100 kHz (0.1 kHz increments)
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Duty Cycle
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Up to 5%
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Triggering
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Internal and External Pulse, External Trigger
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Scanning
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Unidirectional and bidirectional survey scan, Start, Stop, Step, Pause scanning programmable
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External Interface
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RS-232, GPIB supported, USB supported in 2010
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Mechanical Parameters
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Full Range Tuning Speed
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<1 sec for 100 cm-1 scan
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Display Accuracy
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±1.0 cm-1 unidirectional
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Display Repeatability
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<0.02 cm-1 unidirectional
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QCL Operational Temp
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15°C Typical
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Relative Temp
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±5°C Programmable
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Package Size
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5.5" L × 3.45" W × 3.31" H
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