Wavelength Meters
HighFinesse laser measurement equipment
• Unmatched absolute accuracy down to 2 MHz • Measurement ranges from UV to IR (192 nm .. 11 µm)
• For pulsed and cw lasers • Sensitivity down to nW light power • Up to 600 Hz acquisition speed
The wavelength meters of the WS series accomplish wavelength measurements with highest accuracy. Both cw and pulsed lasers with narrow-band emission can be examined, monitored and even actively controlled. Various models of the WS series are available, covering UV to IR wavelength ranges (192 nm - 11 µm). Based on a rugged Fizeau interferometer setup without any moving components, the wavelength meters provide quasi unlimited lifetime.The spectrum analyzers LSA and HDSA allow for multi-line or broadband spectrum of light sources like cw and pulsed lasers, gas discharge lamps, super luminescence diodes, semiconductor laser diodes and LEDs.
Options
MultiChannel option for simultaneous measurement of several lasers.
Applications
• LIDAR Seeding
Technical Information
LSA WS5 WS6-600 WS6-200 WS7 WS7-30 WS8 WS8-2 Measurement range
standard
330 - 1180 nm
✓
✓
✓5)
✓
✓
✓
✓
✓
UV-I
248-1180 nm
✓
✓
✓
✓
✓
✓
✓
UV-II
192-800 nm
✓
✓
✓
✓
UV-II/VIS
192-1180 nm
✓
VIS/IR
330-1750 nm
✓
✓
✓
✓
VIS/IR-II
500-2250 nm
✓
✓
✓
✓
IR-I
630-1750 nm
✓
✓
✓6)
✓6)
✓
✓
✓
IR-II
1000-2250 nm
✓
✓
✓
✓
✓
✓
IR-III
2-11 µm
✓
✓
✓
Absolute accuracy
192-330 nm [pm]
6
3
0.6
0.4
0.2
0.1
0.1
0.1
330-420 nm [pm]
3
2
0.3
0.2
0.04
0.02
0.01
0.01
420-1100 nm [MHz]
6000
3000
600
200
60
30
101)
22)
1100-2250 nm [MHz]
12000
2000
400
150
40
20
101)
2-11µm [MHz]
1-5 nm3)
3000
200
Calibration
Built-in4)
Built-in4)
Built-in
Built-in4)
Built-in7)
External
External
External
1) ± 200 nm around calibration wavelength
2) ± 2 nm around calibration wavelength
3) depending on device type
4) except IR-III
5) FAST-option: measurement speed 24 kHz
6) FAST-option: measurement speed 50 kHz
7) exept IR-I, IR-II