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85 YCA Series of DPSS Lasers
Jan 2006
Melles Griot, Light Sources GroupRequest Info
For Fluorescence-induced Imaging
CARLSBAD, Calif., Jan. 31, 2006 -- Melles Griot, a global supplier of photonics products including optical components and systems and lasers, has introduced a new member of the 85 YCA series of diode-pumped solid-state (DPSS) lasers produced by its Laser Group. The new entry has an output power of 25 mW at 561 nm -- more yellow power than is available from air-cooled krypton/argon ion lasers. The additional power can be used to compensate for fiber-coupling losses or optical throughput inefficiencies associated with scanning and imaging devices. The single-frequency output exhibits less than 3 percent peak-to-peak noise and is an excellent choice for fluorescence-induced imaging, according to the company.

85 YCA series lasers are particularly suited for confocal laser scanning microscopy and for exciting rhodamine, ROX and Alexa Fluor dyes. The wavelength matches the absorption spectra of these dyes much better than the green HeNe (helium neon) wavelength, and the systems are more reliable, stable, efficient and long-lived than krypton or krypton/argon lasers operating at 568 nm, according to Melles Griot Laser Group.

85 YCA series lasers have a nearly circular (<1.1:1 aspect ratio), linearly polarized beam with an M2 factor of less than 1.2. The compact, conduction-cooled laser head incorporates thermoelectric cooling and automatic power control for stable, long-term operation. Power drift is less than 5 percent over 24 hours.

For more information, visit:; e-mail:

Melles Griot
Laser Group
2051 Palomar Airport Rd., 200
Carlsbad, CA 92011
Phone: (800) 645-2737, (760) 438-2131
FAX: (760) 438-5208
Web site:


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