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  • High-Stability Infrared Laser
Mar 2009
Coherent Inc.Request Info
SANTA CLARA, Calif., March 13, 2009 – Coherent Inc. has launched an infrared version of its Verdi solid-state lasers, delivering 25 W of single-mode CW output at 1064 nm. The Verdi IR 25 laser has the same diode-pumped, solid-state (Nd:YVO4) unidirectional ring-resonator design as is standard in all green Verdi lasers. Its single-longitudinal-mode output has low noise of <0.04% rms, a narrow linewidth of <2.5 MHz FWHM and a coherence length greater than 60 m. A piezo-actuated resonator mirror enables tuning of the output frequency over a range >3.2 GHz and/or locking to an external reference cavity. The bandwidth for piezo control is DC to 20 kHz.

Coherent-IR-Verdi_Laser.jpgBeam-pointing stability of <2 µrad/oC and beam quality of M2 <1.1 simplify laser alignment and eliminate the need for frequent adjustments of the beam. The natural stability of this single-mode design means that the output power can be smoothly varied over a 15- to 25-W range without mode hops. The output is linearly polarized with an extinction ratio greater than 100:1.

A single Verdi IR laser can generate several traps simultaneously for optical trapping of atoms for extended periods. Other applications include optical tweezers, optical/semiconductor materials development, remote optical sensing, harmonic generation and pumping of mid-infrared optical parametric oscillators for high-resolution molecular spectroscopy.

For more information, visit:

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


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harmonic generation
With relation to radiant energy, the conversion of electromagnetic radiation having a given frequency into radiation having a multiple of the frequency. This can occur when an intense directional light beam passes through a nonlinear optical medium.
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...
solid-state laser
A laser using a transparent substance (crystalline or glass) as the active medium, doped to provide the energy states necessary for lasing. The pumping mechanism is the radiation from a powerful light source, such as a flash lamp. The ruby and Nd:YAG lasers are solid-state lasers.
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