Burleigh WA-1500 Wavemeter Optical Wavelength Meter

The Burleigh WA-1500 is a laser wavelength meter designed for precise measurement of continuous wave (CW) laser wavelengths. It utilizes Burleigh’s scanning Michelson interferometer technology, comparing the interference fringe pattern of the laser under test with an internal stabilized HeNe laser wavelength standard. The system is engineered to account for factors affecting measurement accuracy, including internal temperature and pressure sensors for dispersion correction.

### Technical Specifications

* **Wavelength Measurement Principle:** Scanning Michelson interferometer with internal HeNe laser wavelength standard.
* **Absolute Wavelength Accuracy:**
* ± 0.2 ppm (± 0.0002 nm at 1000 nm) when laser spectral bandwidth is less than 1 GHz (FWHM).
* ± 1.0 ppm (± 0.001 nm at 1000 nm) is achievable with the WA-1000 model.
* **Wavelength Ranges (Versions available):**
* Visible (VIS): 400 – 1100 nm
* Near-Infrared (NIR): 600 – 1800 nm
* Infrared (IR): 1.5 – 4 µm
* *Note: Conversion between ranges is achieved by replacing the photodetector and beamsplitter.*
* **Display Resolution:**
* 0.0001 nm
* 0.001 cm⁻¹
* 0.01 GHz
* **Optical Input Signal Sensitivity:**
* 20 µW (VIS, NIR)
* 1 mW (IR)
* **Maximum Optical Input Level:**
* 2 mW (VIS, NIR)
* 100 mW (IR)
* **Measurement Update Rate:**
* 1 second per measurement (1 Hz)
* 0.25 seconds per measurement (4 Hz)
* **Internal Environmental Correction:** Utilizes internal temperature and pressure sensors.
* **Dynamic Range:** 100 (achieved via automatic or manual attenuation).
* **Laser Spectral Bandwidth Requirement for Max Accuracy:** < 1 GHz (FWHM).### Inputs and Interfaces* **Optical Input Methods:** * **Fiber Optic:** Standard FC/PC connector; FC/APC optional. Primarily used for VIS and NIR wavelengths. The fiber optic input is pre-aligned. * **Free Space Beam:** Via an aperture on the side of the system. A flip mirror switches between fiber and free space input. The free space aperture is necessary for IR wavelengths when suitable optical fibers are unavailable. An internal reference HeNe laser beam is emitted from the input aperture as a visible tracer for alignment. * **Instrument Interfaces:** * **RS-232:** Standard, bi-directional for data transmission and remote control. * **GPIB/IEEE-488:** Optional. * **Analog Output:** Provides a ± 5 volt signal proportional to the deviation from a specified wavelength setpoint, usable for monitoring or feedback control.### Physical Characteristics* **Dimensions (WxHxD):** 15.3” x 8.0” x 11.5” (389 mm x 203 mm x 292 mm). * **Weight:** 25 lbs (11.3 kg). * **Power Requirements:** 90 to 270 VAC, 50/60 Hz. * **Warm-up Time:** Nominal 7 minutes.### Operational Features* **Laser Compatibility:** Measures the absolute wavelength of virtually any CW laser. * **Display:** Easy-to-read display output. Displays wavelength in nm, wavenumber (cm⁻¹), or frequency (GHz). * **Averaging Mode:** Allows for averaging of up to 50 samples for enhanced stability. * **Setpoint Functionality:** Allows setting a reference wavelength for deviation calculations and analog output. * **Front Panel Lock:** Feature to prevent manual input, allowing for remote computer control.### Environmental Considerations* **Operating Temperature:** Internal sensors monitor temperature within a range of 1°C to 50°C. * **Operating Pressure:** Internal sensors monitor pressure within a range of 500 mm Hg to 1000 mm Hg.Why Choose Aumictech for Burleigh WA-1500? At Aumictech, we specialize in supplying high-end laser metrology equipment. Whether you need precise wavelength measurements for research and development, consistent validation for manufacturing, or reliable performance across various laser types, our team ensures the Burleigh WA-1500 delivers maximum performance for your application.