Certifications

Laser Wavelength Meters

For CW, pulsed and high-repetition rate pulsed lasers.

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Laser Wavelength Meters For CW, pulsed and high-repetition rate pulsed lasers. Please get in touch On Request
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Laser wavelength meters that use proven interferometer-based technology to measure absolute wavelength to an accuracy as high as ± 0.0001 nm. 

To achieve the reliable accuracy that is expected from Bristol Instruments, all of its wavelength meters include a built-in wavelength standard for calibration. Systems are available for CW and pulsed lasers that operate at wavelengths from 375 nm to 12 µm.

 

871 Series Laser Wavelength Meter - At a glance

See full product brief below.

  • For pulsed and CW lasers

  • Wavelength accuracy as high as ± 0.0001 nm

  • Operation available from 375 nm to 2.5 μm

  • Fastest sustained measurement rate of 1 kHz

 

671 Series Laser Wavelength Meter - At a glance

See full product brief below.

  • For CW lasers

  • Wavelength accuracy as high as ± 0.0001 nm

  • Operation available from 375 nm to 12 μm

 

871 Series Laser Wavelength Meter - Product Brief

 

Accurate wavelength measurement of pulsed and CW lasers.

The 871 Laser Wavelength Meter uses a proven Fizeau etalon design to measure the absolute wavelength of pulsed and CW lasers to an accuracy of ± 0.2 parts per million (± 0.0002 nm at 1000 nm). This performance is maintained over long periods of time because the system is automatically calibrated with a built-in wavelength standard.

In addition, the laser under test enters the model 871 through a pre-aligned fiber-optic input connector. This input method eliminates the need to visually inspect and optimize the interference patterns generated by the system's etalons and therefore results in uncompromised accuracy.  

 

Fastest sustained wavelength measurement available.

The 871 Laser Wavelength Meter's Fizeau etalon design generates a spatial interferogram that is detected by a fast photodetector array. An on-board digital signal processor quickly converts the interferometric information to wavelength. Because this calculation is done internally, a sustained measurement rate as high as 1 kHz is achieved.

In addition, wavelength measurements can be reported at this rate by data streaming with an RS-422 serial interface, or an internal data buffer is available to save up to one million measurements. 

 

Broad wavelength coverage and straightforward operation

The 871 Laser Wavelength Meter is available in three broad wavelength configurations to satisfy many experimental requirements. These are designated as the VIS (375 – 1100 nm), NIR (630 – 1700 nm), and NIR2 (1 – 2.5 μm) wavelength ranges.

The system operates with a PC, running under Windows, via USB or Ethernet. Software is provided to control the measurement parameters to report data, or the system can become part of an experiment using a library of commands for custom or LabVIEW programming.

In addition, a browser based application can be used with a tablet or smart phone to display laser wavelength information anywhere in the laboratory. 

 

Fastest, most reliable method to accurately measure the wavelength of pulsed and CW lasers.

  • Wavelength accuracy as high as ± 0.0001 nm

  • Automatic calibration with built-in wavelength standard

  • Fastest sustained measurement rate of 1 kHz 

  • Operation available from 375 nm to 2.5 μm 

  • Pre-aligned fiber-optic input

  • Built-in PID controller for precise laser stabilization

  • Straightforward operation with PC using USB or Ethernet

  • Automatic data reporting using custom or LabVIEW programming eliminates the need for dedicated PC

 

671 Series Laser Wavelength Meter - Product Brief

 

Highest guaranteed wavelength accuracy

The 671 Laser Wavelength Meter uses proven Michelson interferometer-based design to measure the absolute wavelength of CW lasers. Two versions are available. The model 671A is the most precise, measuring wavelength to an accuracy of ± 0.2 parts per million (± 0.0002 nm at 1000 nm).

For experiments that are less exacting, the model 671B is a lower-priced alternative with an accuracy of ± 0.75 parts per million (± 0.0008 nm at 1000 nm). 

 

Continuous calibration for reliable results

To achieve the reliable accuracy that is expected from Bristol Instruments, the 671 Laser Wavelength Meter is continuously calibrated with a built-in HeNe laser. This is an ideal reference source because its wavelength is well-known and fixed by fundamental atomic structure.

To achieve the highest accuracy, the 671A uses a single-frequency HeNe laser that is stabilized using a precise balanced longitudinal mode technique. A standard HeNe laser is used as the wavelength reference in the model 671B. 

 

Broad wavelength coverage and straightforward operation

The 671 Laser Wavelength Meter is available in four broad wavelength configurations to satisfy virtually any experimental requirement. These ranges are the VIS (375 – 1100 nm), NIR (520 – 1700 nm), IR (1 – 5 μm), and MIR (1.5 – 12 μm). The system operates with a PC, running under windows, via USB or Ethernet. Software is provided to control measurement parameters and to report data, or the system can become part of an experiment using a library of commands for custom or LabVIEW programming.

In addition, a web-based application can be used to display or collect measurement data with a tablet or smart phone. 

 

Reliable accuracy gives you greater confidence in your experimental results from the visible to the mid-IR.

  • Wavelength accuracy as high as ± 0.0001 nm 

  • Continuous calibration with built-in wavelength standard

  • Exceptional repeatability results in wavelength resolution as high as 0.03 pm

  • Operation available from 375 nm to 12 μm

  • Straightforward operation with PC using USB or Ethernet

  • Automatic data reporting using custom or LabVIEW programming eliminates the need for a dedicated PC

  • Convenient tablet/smartphone application reports measurement data anywhere in the laboratory