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Higher-Power Blue Lasers
Nov 2006
Coherent Inc.Request Info
SANTA CLARA, Calif., Nov. 21, 2006 -- Coherent Inc. has extended the power range of its Sapphire all-solid-state, 488-nm lasers with new products in both its low-power (LP) and high-power (HP) platforms.

The Sapphire 488 HP now includes a 500-mW option in the same standard package configuration that formerly offered 100 or 200 mW of output. This powerful air-cooled laser head measures only 215 x 140 x 51 mm (8.4 x 5.5 x 2.0 in.) and produces a high-quality output in terms of mode quality (M2 <1.1), divergence (<1.2 mrad), pointing stability (<±30 µrad over 2 hours and ± 3°C) and noise (<0.5% rms from 20 Hz to 2 MHz).

cosapphire.jpgThe new 500-mW Sapphire 488 HP is primarily targeted at biomedical applications, such as flow cytometry and fluorescence imaging. In these applications, the high power translates into increased process throughput and improved signal-to-noise ratio. Furthermore, compared to argon ion lasers of this power range, the Sapphire 488 HP offers longer lifetime, smaller size, lower power consumption and the convenience of air-cooling.

The second new laser is a 75-mW Sapphire 488 LP. This laser is offered in the same highly compact, 125 x 70 x 34 mm (4.9 x 2.8 x 1.3 in.) form factor as Sapphire lasers in the 10 to 50 mW range, with the same beam characteristics as the Sapphire 488 HP.

For biomedical as well as semiconductor inspection and instrumentation applications, the unique combination of 75-mW output power, compact package size, low heat dissipation, long lifetime and high stability make the Sapphire 488 LP an extremely attractive alternative to air-cooled argon lasers. Furthermore, the common package size and electrical interface requirements with the lower power models simplify upward migration for systems integrators.

For more information, visit:; e-mail:

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


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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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