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  • The Sapphire 561
Jul 2009
Coherent Inc.Request Info
Yellow Laser
SANTA CLARA, Calif., July 27, 2009 – Coherent Inc. has unveiled a new series of yellow 561-nm lasers that produce high power and offer high efficiency. The Sapphire 561 is an optically pumped semiconductor laser (OPSL) that offers a choice of 50, 75, 100 or 150 mW of output power in a high-quality TEM00 beam with M2 <1.1 and with noise of <0.25% rms from 20 Hz to 2 MHz.

The company says that the inherently high efficiency of the proprietary OPSL technology results in four times better electrical efficiency and lower heat dissipation than products based on legacy Nd:YAG technology can produce.

Coherent-Sapphire.jpgMeasuring 125 × 70 × 34 mm, the lasers share the same compact form factor as the company’s low-power Sapphire 488 lasers, and all other interface and operating characteristics are identical with the 488-nm wavelength model, which simplifies integration into existing applications. They also use the same proven architecture, supply chain and manufacturing technology.

Beam divergence is <1.3 mrad, pointing stability is <30 µrad, long-term power stability is <2%, warm-up time is <5 min, and vertical polarization ratio is >100:1. Operating voltage is 10.8 to 15 VDC, and power consumption is <60 W.

The lasers are well suited for a variety of applications in the life sciences. Their high power allows faster throughput and an improved signal-to-noise ratio for flow cytometry, and it enables higher frame rates and reduced exposure times in confocal microscopy. The 561-nm wavelength is also well matched to the needs of emerging applications in proteomics and genomics.

For more information, visit:  

Coherent Inc.
5100 Patrick Henry Drive
Santa Clara, CA 95054
Phone: (800) 527-3786
Fax: (800) 362-1170


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flow cytometry
A method of measuring the characteristics of microscopic particles, usually cells, as they flow in a fluid stream through a beam of light. Particles may be stained with fluorescent dye and the fluorescence detected via laser illumination.
The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
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