The Burleigh WA-1000 is a precision wavelength meter for absolute measurement of laser wavelengths across the near-infrared spectrum from 600 nm to 1800 nm. It employs a scanning Michelson interferometer that compares interference fringe patterns against an internal HeNe laser standard traceable to ± 1 ppm (± 500 MHz). The instrument delivers ± 1.0 ppm absolute accuracy with 0.001 nm display resolution, making it essential for laser characterization, optical fiber testing, and telecommunications research.
Technical Specifications
• Wavelength Range: 600 nm to 1800 nm (NIR)
• Absolute Wavelength Accuracy: ± 1.0 ppm (± 0.001 nm @ 1000 nm)
• Display Resolution: 0.001 nm
• Internal Reference: Multi-mode HeNe laser, ± 500 MHz or ± 1 ppm
• Dynamic Intensity Range: 100:1 or 400:1 (with input attenuation)
• Input Attenuator: Automatic, 0–2 optical density
• Fiber Input: FC/PC connector (FC/APC optional), requires ≥ 20 µW (NIR)
• Free-Space Input: 2 mm aperture, requires ≥ 2 mW (NIR), includes visible tracer beam
• Temperature & Pressure Correction: Internal sensors for dispersion compensation
• Display Modes: Wavelength (nm), wavenumber (cm⁻¹), frequency (GHz); air or vacuum values
• Analog Output: ± 5 V, user-selectable resolution
• Input Beam Height: 7.0 inches (± 0.3 inches adjustable)
• Dimensions: 389 × 203 × 292 mm (L × H × D)
• Weight: 25 lbs
• Power: 90–260 VAC, 50/60 Hz, 0.2 A @ 240 VAC / 0.4 A @ 120 VAC
• Fuse: 2 A, 250 V, time-delay
– Key Features
• Continuous calibration against built-in wavelength standard ensures traceability
• Auto-resolution displays only significant digits; bandwidth < 10 GHz achieves highest resolution
• Pre-aligned fiber coupling for rapid deployment
• Visible tracer beam simplifies free-space alignment
• RS-232 standard interface; GPIB/IEEE-488 optional
– Typical Applications
• Laser wavelength characterization and verification
• Optical telecommunications system testing
• Fiber-optic component validation
