WA-1500/1000 Wavemeter Wavelength Meter

WA-1500/1000 Wavemeter Wavelength Meter

WA-1500 Wavemeter: the most accurate, continuous, real-time laser wavelength measurement available.

WA-1000 Wavemeter: most of the advantages of the WA-1500 and even more affordable.

These systems employ Burleigh's proven scanning Michelson interferometer-based Wavemeter technology to determine the absolute wavelength of a test laser by comparing its interference fringe pattern with that of a built-in HeNe laser wavelength standard. Unlike other wavelength meters, all factors that can affect wavelength measurement are accounted for in order to achieve the highest absolute wavelength accuracy of ą 0.2 ppm (ą 0.2 pm at 1000 nm) with the WA-1500. When the highest accuracy is not required, the WA-1000 is available as a more affordable alternative to provide an absolute wavelength accuracy of ą 1 ppm (ą 1 pm at 1000 nm).

Three versions of the WA-1500 and WA-1000 Wavemeters are available for different operational wavelength ranges: visible (VIS), near infrared (NIR), and infrared (IR). Each version includes a photodetector and a beamsplitter optimized for its operational wavelength range. Conversion from one wavelength range to another is accomplished simply by replacing the photodetector and beamsplitter.

The main features are:

Absolute wavelength accuracy of ą 0.2ppm for WA-1500
Absolute wavelength accuracy of ą 1ppm for WA-1000
Built-in HeNe laser wavelength standard for continuous calibration
Operation from 400nm to 4ĩm
Displays wavelength (nm), wavenumber (cm^-1) or frequency (GHz)
Displays wavelength deviation from a user-selected setpoint
Convenient pre-aligned fiber coupling
Free space input for IR wavelengths
Visible tracer beam to facilitate alignment
Standard RS-232 interface
Optional GPIB/IEE-488 interface

WA-1500 Specifications

Model	Wavelength Range	Absolute Accuracy 1, 2, 3	Measurement Rate	Minimum Input Power
WA-1500 VIS	400-1100 nm	ą 0.2 ppm ą 0.2 pm @ 1,000 nm ą 0.002 cm^-1 @ 10,000 cm^-1 ą 0.06 GHz @ 300 THz	1 Hz	20 ĩW
WA-1500 NIR	600-1800 nm	ą 0.2 ppm ą 0.2 pm @ 1,000 nm ą 0.002 cm^-1 @ 10,000 cm^-1 ą 0.06 GHz @ 300 THz	1 Hz	20 ĩW
WA-1500 IR	1.5-4.0 ĩm	ą 0.4 ppm ą 0.6 pm @ 1,500 nm ą 0.003 cm^-1 @ 6,667 cm^-1 ą 0.080 GHz @ 200 THz	1.5 Hz	1 mW

WA-1000 Specifications

Model	Wavelength Range	Absolute Accuracy 1, 2, 3	Measurement Rate	Minimum Input Power
WA-1000 VIS	400-1100 nm	ą 1.0 ppm ą 1.0 pm @ 1,000 nm ą 0.01 cm^-1 @ 10,000 cm^-1 ą 0.3 GHz @ 300 THz	4 Hz	20 ĩW
WA-1000 NIR	600-1800 nm	ą 1.0 ppm ą 1.0 pm @ 1,000 nm ą 0.01 cm^-1 @ 10,000 cm^-1 ą 0.3 GHz @ 300 THz	4 Hz	20 ĩW
WA-1000 IR	1.5-4.0 ĩm	ą 2.0 ppm ą 3.0 pm @ 1,500 nm ą 0.013 cm^-1 @ 6,667 cm^-1 ą 0.40 GHz @ 200 THz	4 Hz	1 mW

Notes:

1.	WA-1500 accuracy of ą 0.2 ppm is achieved when laser spectral bandwidth is less than 1 GHz (FWHM). When spectral bandwidth is greater than 1 GHz, the wavelength measurement is displayed with the appropriately reduced accuracy.
2.	WA-1000 accuracy of ą 1.0 ppm is achieved when laser spectral bandwidth is less than 10 GHz (FWHM). When spectral bandwidth is greater than 10 GHz, the wavelength measurement is displayed with the appropriately reduced accuracy.
3.	For WA-1500-IR or WA-1000-IR systems at wavelengths greater than 1,800 nm, the absolute accuracy is higher.