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.
- 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 - Options
MultiChannel option for simultaneous measurement
of several lasers. - Applications
- Literature
- Article: Solid state etalons improve wavelength measurement
- Application Note: Diode Laser Locking and Linewidth Narrowing
- Article: C. Nölleke et al, Absolute Frequency Atlas from 915 nm to 985 nm based on Laser Absorption Spectroscopy of Iodine (2018)
- Related Products
- Downloads
- Brochure: HighFinesse High Precision Wavelength Meters
- Brochure: HighFinesse Spectrometers
- Brochure: HighFinesse Linewidth Analyzer
- Quick Start Guide: WS-Series
