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Chameleon OPO
Nov 2007
Coherent Inc.Request Info
For Deep-Tissue Imaging
SANTA CLARA, Calif., Nov. 27, 2007 -- The Chameleon optical parametric oscillator (OPO) from Coherent Inc. enables gap-free tuning across the entire 680- to 1580-nm range, making it a suitable ultrafast source for deep-tissue imaging in the critical long wavelength. This wavelength is optimal for exciting long-wavelength fluorophores and minimizing scatter, enabling images of thicker samples -- including live tissue -- to be captured via multiphoton excitation (MPE) microscopy.

chameleon.jpgThe Chameleon OPO uses innovative periodically poled crystal technology and is designed as a turnkey accessory that is compatible with any of Coherent’s Chameleon-Ultra tunable one-box ultrafast lasers. These lasers provide rapid tuning between 680 and 1080 nm, which is now extended to 1580 nm. By contrast, older lasers cannot provide access to the so-called Ti:sapphire wavelength gap, around 1100 nm, which requires complex frequency mixing schemes.

Chameleon ultrafast lasers are designed from the ground up to maximize the potential of MPE, including coherent anti-Stokes Raman scattering (CARS) and three-photon imaging. 

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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BiophotonicsChameleon OPOCoherentdeep-tissue imagingfluorophoreslong wavelengthMicroscopyMPEmultiphoton excitation microscopyoptical parametric oscillatorphotonicsProducts

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