Product Description:
The Bristol 771 Wavelength Meter is a high-precision laser wavelength measurement instrument that combines Michelson interferometer technology with fast Fourier transform analysis. It can be used as both a high-resolution spectrograph and a high-precision wavelength meter. Here is a detailed description of this product:
The Bristol 771 Wavelength Meter is a high-precision laser wavelength measurement device in the Bristol series, suitable for experimental scenarios that require high-precision wavelength measurement and spectral analysis. Its design covers a wide wavelength range from visible light to far-infrared, meeting various needs such as research and industrial testing.
Multi-mode laser measurement: Supports continuous laser, quasi-continuous laser (repetition rate > 10 MHz), and pulsed laser (repetition rate > 50 kHz, pulse width > 50 ns).
Wavelength and spectral analysis: Not only can it measure laser wavelengths, but it can also analyze the spectral information of the laser, including the laser longitudinal mode structure, longitudinal mode stability, and laser linewidth.
High-precision measurement: The wavelength accuracy can reach ±0.2 ppm (for model 771A), and the spectral resolution can reach 2 GHz.
Built-in calibration source: Uses a stabilized-frequency He-Ne laser for real-time calibration to ensure the accuracy and stability of the measurement results.
Wavelength range
Visible light (VIS): 375 - 1100 nm
Near-infrared (NIR): 520 - 1700 nm
Infrared (IR): 1 - 5 μm
Far-infrared (MIR): 1 - 12 μm
Measurement accuracy:
Model 771A: ±0.2 ppm (wavelength accuracy).
Model 771B: ±0.75 ppm (wavelength accuracy).
Spectral resolution:
Standard mode: 4 GHz (8 GHz for infrared).
High-resolution mode: 2 GHz (4 GHz for infrared).
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