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The Burleigh WA-2500 Wavemeter Jr is an instrument for wavelength measurement of CW laser sources that combines accuracy with ease of use. The accuracy is +/- 1 part in 10,000 over the full wavelength range. The primary application for Model WA-2500 is measurement of the wavelength or the frequency of tunable lasers that operate from 400 to 1800 nanometers, particularly dye lasers, Ti:Sapphire lasers and diode lasers. Two detectors are provided to cover this range with high sensitivity. The VIS detector is used for lasers operating from 400 to 1100 nanometers, and the IR detector for lasers that operate from 600 to 1800 nanometers. Specifications. Wavelength Range: 400 - 1800 nm. Accuracy: 1 part in 10,000, at 1000 nm: 0.1 nm (1 cm^-1). Display Resolution(Display resolution is adjusted automatically depending on the linewidth of the measured light.): 0.01 nm (0.1 cm^-1). Display Units: Nanometers or wavenumbers in vacuum or air. Display Update Period: Normal Mode; 0.2 seconds, Average Mode 2 seconds. Input Power (Input power requirement is specified as power out of the fiber and into the instrument. For a collimated beam with a diameter 2.5 mm, coupling into the standard beam receiver is usually greater than 30%.): 20 microwatts. Beam Receiver Accessory: Coupling Head Aperture; 2.5 millimeter, Patch cord Cable Length; 3 meters. RS-232 Interface Standard (2400 Baud).
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