The Yokogawa AQ6151B is a precision optical wavelength meter for the 900-1700 nm range, utilizing a Michelson interferometer and Fast Fourier Transform (FFT) signal processing to deliver high-accuracy wavelength characterization. The instrument measures single and multiple wavelengths simultaneously (up to 1024), with wavelength resolution to 0.0001 nm and measurement times as fast as 0.2 seconds. It accommodates modulated light signals and optical filter characterization, making it suited for telecommunications, fiber optic system validation, and optical component inspection including DFB lasers, tunable lasers, optical transceivers, and WDM transmission systems.
– Technical Specifications
Wavelength Measurement
• Range: 900-1700 nm
• Accuracy: ±0.2 ppm
• Resolution: 0.0001 nm
• Measurement time: 0.2 seconds (fast) or 0.3 seconds (normal)
• Minimum resolvable separation: 5 GHz or 10 GHz
• Measurement units: nm, THz, cm⁻¹
• Frequency bands: O Band, L Band
Optical Input
• Input power range: -40 to 18 dBm
• Return loss: 35 dB
• Fiber type: Single Mode (SM, ITU-T G.652)
Optical Power Measurement
• Accuracy: ±0.5 dB (at 1550 nm, -10 dBm)
• Linearity: ±0.3 dB (at 1550 nm, -30 dBm or higher)
• Polarization dependence: ±0.5 dB
• Resolution: 0.01 dB
Environmental & Power
• Operating temperature: 5 to 35 °C
• Relative humidity: 20 to 80% RH
• Warm-up time: 60 minutes
• AC input: 100-240 VAC, 50/60 Hz
• Power consumption: 100 VA
• Laser class: CLASS 1
– Key Features
• Simultaneous multi-wavelength measurement capability (up to 1024 wavelengths)
• Fast measurement cycles support high-throughput testing workflows
• 5.7-inch color LCD display (640 × 480 dots)
• Internal memory 256 MB with external USB storage
• Modulated light signal analysis and optical filter characterization
– Interfaces & Compatibility
• Optical connectors: FC/PC, SC/PC
• Communication: Ethernet, USB, VGA, GPIB
• Recalibration interval: 1 year
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