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Wavelength meter-Scientific

621 Series

Continuous wave laser, 375nm-12um

From visible to mid infrared, we provide you with reliable accuracy. The best method to determine the absolute wavelength of continuous wave laser is to use the 621 series laser wavelength meter. This system provides real-time measurement of laser wavelength information with an accuracy of up to ± 0.2 ppm. This accuracy is obtained through continuous calibration of a built-in standard wavelength, ensuring reliable accuracy in experimental results.

Product Features:

·Absolute wavelength measurement accuracy, up to ± 0.0001nm

·Continuous calibration through a built-in wavelength standard

·The wavelength range is available from 375nm to 12 µ m

·At the same time, the measurement accuracy of all-optical power can reach ± 15%

·Measurement speed up to 10 Hz

·The input power requirement is greater than 10 µ W

·Display wavelength, wavenumber, or frequency

·Convenient pre aligned fiber optic input, visible and near-infrared wavelengths

·Free space aperture, visible and mid infrared wavelengths

·Simple operation using high-speed USB interface on PC

·Easy to integrate into experimental automatic wavelength reporting and control

·Including customization orLabVIEWprogramming

Specification parameters:

model	621A	621B
Laser type	CW and quasi-CW (repetition rate >10 MHz)
Wavelength Range	VIS:375 – 1100 nm NIR:520 – 1700 nm IR:1 – 5 µm	VIS:375 – 1100 nm NIR:520 – 1700 nm IR:1 – 5 µm MIR:1.5 – 12 µm
Wavelength accuracy	± 0.2 ppm	± 0.75 ppm (± 1 ppm for MIR)
Measurement repeatability	VIS/NIR: ± 0.03 ppm IR:± 0.06 ppm	± 0.1 ppm
calibration	Continuous with built-in stabilized single-frequency HeNe laser	Continuous with built-in standard HeNe laser
Power accuracy	± 15% (VIS and NIR only)
Minimum input	VIS:250 µW (375 nm)........30 µW (750 nm)........125 µW (1100 nm) NIR:500 µW (520 nm)............25 µW (1100 nm)..........50 µW (1700 nm) IR:550 µW (1 µm).................. 80 µW (3 µm)................ 750 µW (5 µm) MIR:750 µW (1.5 µm)......... 150 µW (7 µm).............. 950 µW (12 µm)
Measurement frequency	VIS/NIR: 4 Hz IR:2.5 Hz	VIS/NIR: 10 Hz IR/MIR:2.5 Hz
Optical input	VIS/NIR:Pre-aligned FC/UPC fiber-optic connector (9/125 μm core diameter) IR/MIR:Free-space aperture for collimated beam
Instrument interface	High-speed USB 2.0 interface with Windows-based display program Library of commands for custom and LabVIEW programming

821 SERIES

The most reliable method for measuring the wavelength of pulsed lasers. The 821 series pulse laser wavelength meter provides researchers with accurate wavelength information. Let them know exactly the wavelength of continuous wave lasers, pulsed lasers, or OPO. A built-in wavelength standard is used for automatic calibration to ensure the reliability of experimental results.

Product Features:

·Working with pulsed, continuous, and OPOs lasers

·Absolute wavelength measurement accuracy ± 600 MHz (± 0.02 cm)^-1)

·Automatic calibration with built-in wavelength standard

·The wavelength range from 350-1700nm options are available

·Measurement frequency up to 200Hz

·Asynchronous operation and automatic pulse detection

·The input energy requirement is greater than 10uJ

·Display wavelength, wavenumber, or frequency

·Visible light facilitates calibration

·Simple operation, connected to PC via high-speed USB

·Easy to integrate into experiments for automatic wavelength reporting and control

·Software for programming clients or LabVIEW

Specification parameters:

model	821B-VIS	821B-NIR
Laser type	Pulsed and CW
Wavelength Range	350 – 1100 nm	630 – 1700 nm
Wavelength accuracy	± 600 MHz (± 0.02 cm^-1)
Measurement repeatability	± 60 MHz (± 0.002 cm^-1)
calibration	Automatic with built-in standard HeNe laser
Minimum input	15 µJ (350 nm) 1 µJ (700 nm) 100 µJ (1100 nm)	15 µJ (630 nm) 1 µJ (1500 nm) 100 µJ (1700 nm)
Measurement frequency	200 Hz
Optical input	Collimated beam, 2 mm diameter aperture, visible tracer beam to facilitate alignment
Instrument interface	USB 2.0 interface with Windows-based display program Library of commands for custom and LabVIEW programming

521 Series

For researchers and engineers who only know the exact wavelength of a continuous laser and do not require particularly high precision, this will be an inexpensive choice. The 521 model is a distinctive and compact equipment system. Combining the accuracy of wavelength measurement with its affordability.

Product Features:

·Absolute wavelength measurement accuracy ± 0.005 nm

·A built-in wavelength reference for continuous calibration

·The wavelength range from 400-1700nm options are available

·Measurement frequency 10Hz

·The input power requirement is greater than 5uW

·Display wavelength, wavenumber, or frequency

·Convenient pre aligned fiber optic input

·Easy to operate, connect to PC via high-speed USB

·Easy to integrate into experiments for automatic wavelength reporting and control

·Customer or LabVIEW programming software

Specification parameters:

model	521-VIS	521-NIR
Laser type	CW and quasi-CW (repetition rate >10 MHz)
Wavelength Range	400 – 1100 nm	520 – 1700 nm
Wavelength accuracy	± 10 ppm
Measurement repeatability	± 5 ppm
calibration	Continuous with built-in Moiré scale
Minimum input	10 µW (400 nm) 5 µW (750 nm) 35 µW (1100 nm)	100 µW (520 nm) 5 µW (1100 nm) 20 µW (1700 nm)
Measurement frequency	10 Hz
Optical input	Pre-aligned FC/UPC fiber-optic connector (9/125 μm core diameter)
Instrument interface	USB 2.0 interface with Windows-based display program Library of commands for custom and LabVIEW programming

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