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Compass 561 Yellow Laser

Photonics.com
Feb 2008
Coherent Inc.Request Info
 
For Bioinstrumentation and Bioimaging
SANTA CLARA, Calif., Feb. 25, 2008 -- Coherent Inc. said its newest Compass 561 laser delivers 50 mW at 561 nm, while still offering substantially lower noise than any other solid-state yellow laser currently available.

According to Coherent, this frequency doubled, diode-pumped solid-state (DPSS) laser has a noise specification of 0.25 percent rms, from 10 Hz to 1 GHz, as well as excellent beam characteristics (M²<1.2 and beam-pointing stability <6 µrad/°C). In addition, Compass 561 utilizes PermAlign construction to achieve superior reliability and lifetime characteristics, and is backed by a 13-month warranty with unlimited operating hours.

CoherentYellow.jpgThese performance specifications, together with its compact size of 100 x 40 x 32.5 mm (3.94 x 1.57 x 1.28 in.), make the new Compass 561 an ideal laser for OEM bioinstrumentation applications, including flow cytometry, confocal microscopy and other types of bioimaging, Coherent said. In particular, the 561-nm output is optimum for exciting several key fluorophores, such as rhodamine series and Alexa Fluor dyes, where it provides better separation between excitation and fluorescence than 532 nm.

According to the company, the Compass 561-50 laser has the same form, fit and function as the previous generation of both the Compass 561-nm lasers and the Coherent Compass 532-nm series, allowing OEM customers to take immediate advantage of the higher power at 561 nm. Coherent has shipped more than 40,000 Compass lasers with demonstrated lifetimes greater than 20,000 hours.

For more information, visit: www.coherent.com; e-mail: tech.sales@coherent.com

Coherent Inc.
5100 Patrick Henry Dr.
Santa Clara, CA 95054
Phone: (408) 764-4000
Fax: (408) 764-4800



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GLOSSARY
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.
fluorescence
The emission of light or other electromagnetic radiation of longer wavelengths by a substance as a result of the absorption of some other radiation of shorter wavelengths, provided the emission continues only as long as the stimulus producing it is maintained. In other words, fluorescence is the luminescence that persists for less than about 10-8 s after excitation.
photonics
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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