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488-, 532-nm Sapphire SF OPSLs
Jul 2011
Coherent Inc.Request Info
SANTA CLARA, Calif., July 25, 2011 — Coherent Inc. has expanded its Sapphire line of compact, continuous-wave, visible lasers with several ultranarrow linewidth models. The new Sapphire SF lasers are available at wavelengths of 488 and 532 nm and feature single longitudinal output to achieve a linewidth of <1.5 MHz.

They are offered with output powers of 20, 50 and 100 mW at 488 nm, and 20, 50, 100 and 150 mW at 532 nm. Independent of wavelength and power class, they are identical in form, fit and function. They provide a high-quality diffraction-limited TEM00 beam with M2 of <1.1, pointing stability of <5 µrad/°C), power stability of <2%) and noise of <0.25% rms from 20 Hz to 2 MHz.

The lasers are based on the proprietary optically pumped semiconductor laser (OPSL) technology, which features low output noise because its short upper-state lifetime eliminates the “green noise” that limits the noise performance of many other solid state-lasers. They also don’t suffer from thermal lensing issues commonly found in frequency-doubled diode-pumped solid-state lasers. The technology is wavelength- and power-scalable.

The devices are suitable for use in research and OEM applications that require a narrow spectral linewidth and/or a long coherence length. Primary applications include Raman spectroscopy, Brillouin scattering, holography/stereography, interferometry, metrology, inspection and remote optical sensing.


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AmericasBiophotonicsBrillouin scatteringCaliforniaCoherentcontinuous-wave lasersCW lasersdiffraction-limited TEM00 beamDPSS lasersholography/stereographyinspection applicationsinterferometerslasersmetrologyOEM applicationsOPSL technologyProductsRaman spectroscopyremote optical sensingresearch applicationsSapphire SF optically pumped semiconductor laserssemiconductor laserssingle longitudinal output lasersTest & Measurementultranarrow-linewidth lasersvisible lasers

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