High-Stability Infrared Laser
Mar 2009Coherent 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.
Beam-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: www.coherent.com
5100 Patrick Henry Drive
Santa Clara, CA 95054
Phone: (408) 764-4000
Fax: (408) 764-4800