The Burleigh WA-1600 Wavemeter System is a precision optical instrument for absolute wavelength measurement of continuous-wave laser sources. It uses a scanning Michelson interferometer that compares the interference fringe pattern of input laser radiation against a stabilized single-frequency HeNe reference laser, delivering high-resolution absolute accuracy across the near-infrared spectrum.
– Technical Specifications
Wavelength and Accuracy
• Wavelength range: 700 nm to 1700 nm
• Absolute wavelength accuracy: ± 0.2 ppm (± 0.30 pm at 1550 nm)
• Display resolution: 0.0001 nm
• Reference laser accuracy: Better than ± 50 MHz relative to Ne20 atomic line center (± 0.1 ppm)
Optical Input
• Single-mode fiber: 9/125 µm with FC/APC connector (standard)
• Multimode fiber compatibility supported
• Free-space input via aperture with flip-mirror switching
• Input sensitivity: −30 dBm (1 µW) for 1200–1700 nm; −20 dBm below 1200 nm
• Maximum input power: 10 dBm (10 mW); 100 mW with external attenuator
• Optical power measurement accuracy: ± 0.5 dB (± 10%)
• Optical power measurement resolution: 0.05 dB (± 1%)
Performance
• Measurement rate: 1 per second
• Warm-up time: 6 minutes typical (reference laser stabilization)
– Key Features
• Fiber optic input is pre-aligned for optimal performance
• Visible tracer beam from internal reference laser aids free-space alignment
• Display output modes: wavelength (nm), wavenumber (cm⁻¹), frequency (GHz); air or vacuum values
• Compact, rugged laboratory package
– Compatibility & Integration
• RS-232 standard bi-directional communication
• GPIB/IEEE-488 optional
• SCPI communication scheme for remote operation
• Monitor port provides interferometer fringe signals and measurement timing signals
• Power: 90–260 V AC, 50/60 Hz
• Suitable for CW and modulated laser sources
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