APPENDIX A
D11-00028-02-A Page 52 of 54
VII. SPECIFICATIONS: MIRcat Laser Systems
Configuration Options
System Configuration Factory-configured for 1, 2, 3 or 4 QC laser modules – refer to the
test sheet for your system
Modes of Operation
Pulsed, depending on laser modules
Refer to test sheet for your system
Wavelength Coverage 3 to 13 µm - depends on QCLs selected. Refer to test sheet
Tuning Parameters
Max. Tuning Speed MIRcat-QT: 5,000 cm
-1
/s. MIRcat-1xxx: 100 cm
-1
/s
Tuning Range Up to 400 cm
-1
per QCL - depends on QCLs selected. Refer to test
sheet
Wavelength Accuracy < 1 cm
-1
Tuning Modes
Set λ, step λ & measure, continuous λ sweep scans
Pulsed Operation
Max. Peak Power Up to 1W - depends on QCL. Refer to test sheet
Max. Average Power Up to 0.5W - depends on QCL. Refer to test sheet
Pulse to Pulse Energy Stability MIRcat-QT: < 3% (std. dev.). MIRcat-1xxx: < 5% pk-pk
Pulse Repetition Range 100 Hz – 1MHz (user selectable in 0.1 kHz increments)
Pulse Width Range 40 ns to 500 ns (20-ns increments)
Max. Duty Cycle 10%
Linewidth < 1 cm-1 (FWHM)
CW Operation (Requires CW Modules)
Max. Average Power Up to 0.5W - depends on QCL. Refer to test sheet
Average Power Stability < 3% (1 hour)
Linewidth < 100 MHz (typical value, FWHM, measured over 1s, when tuned
to single longitudinal mode)
Beam Properties
Spatial Mode TEM
00
(nominal)
Pointing Stability
MIRcat-1xxx: < 2mrad per 100 cm-1 of tuning (centroid change)
Beam Waist
< 2.5 mm (1/e
2
intensity radius, typical value, varies with λ)
30 to 50 cm from output port (typical value, varies with λ)
Beam Divergence
< 4 mrad (full angle, 1/e
2
intensity width, varies with λ,
measured at with λ = 4 µm)
Linear >100:1, vertically polarized, perpendicular to laser base
Operating Parameters
Current Range 0 to factory-set limit. Refer to system GUI
Laser Temperature Factory set default +/- 5.0 °C
Cooling Requirements Water cooling for CW operation or pulsed duty cycle ≥10%
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