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Compass Yellow
Apr 2006
Coherent Inc.Request Info
SANTA CLARA, Calif., April 18, 2006 -- The new Compass Yellow from Coherent Inc. is a compact, all-solid-state laser delivering 20 mW of continuous-wave output at 561 nm in a diffraction-limited (TEM00) beam. According to the company, this laser will meet a growing demand for yellow laser excitation in fluorescence-based bioinstrumentation applications such as confocal microscopy.

Compass Yellow is based on Coherent's line of field-proven, diode-pumped Compass green lasers, with which it shares a platform. This shared platform simplifies the transition to yellow excitation for existing users of Compass green lasers, the company said.The higher power, low-noise output, and field-proven reliability of the Compass line also make Compass Yellow an attractive alternative for instrument builders currently using other yellow laser sources, including solid-state and Kr+ ion lasers, Coherent said.

According to the company, the reliability of the Compass design has been well established by more than 15,000 Compass lasers currently operating in the field. Compass Yellow also incorporates the same intracavity frequency-doubling platform, but uses the less known Nd:YAG fundamental at 1122 nm for a final output at 561 nm. Consequently, Coherent said, Compass Yellow delivers all the Compass family advantages for OEM and research applications, including a small footprint, low power consumption and reduced thermal budgets for simplified integration and remote operation.

For more information, visit:; e-mail:

Coherent Inc.
5100 Patrick Henry Dr.
Santa Clara, CA 95054
Phone: (408) 764-4580
Toll Free: (800) 527-3786
Fax: (408) 970-9998


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CoherentCoherent Inc.Compass YellowCompass Yellow Laserconfocal microscopygreen lasersMicroscopyProductssolid-state Nd:YAGlasers

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