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Legend Elite Duo
Aug 2007
Coherent Inc.Request Info
SANTA CLARA, Calif., Aug. 27, 2007 -- The new Legend Elite Duo from Coherent Inc. is an integrated ultrafast amplifier that delivers pulse energies over 6 mJ at a 1-kHz repetition rate, according to the manufacturer.

The Legend Elite Duo is a two-stage amplifier. The first stage features the same high-power regenerative amplifier design used in the Legend Elite. The second stage is a simple linear amplifier that uses a thermoelectrically cooled titanium:sapphire crystal. Because both amplifier stages are integrated into one box, the Legend Elite Duo is compact, easy to use and very stable. Also, with a pulse-width capability of less than 40 fs and M² <1.5, the output from the Legend Elite Duo can generate higher intensities than other integrated amplifiers, Coherent said.

LegendEliteDuo.jpgAnd while alternative amplifier systems require two separate, low-power pump lasers, the high-power Evolution-HE laser can pump both amplifier stages. Rated at >45 mJ/pulse, the integrated Evolution-HE from Coherent further enhances the duo’s simplicity and stability, the company said. The Legend Elite Duo, which can be seeded by Coherent's Micra, Mira or Vitesse ultrafast oscillators, is especially useful for applications that require a lot of power.

Examples of where high power provides faster and more precise results include pumping multiple tunable OPAs (optoelectronic pulse amplifiers) for pump-probe photochemistry and in ultrafast spectroscopy techniques such as CARS (coherent anti-Stokes Raman scattering) and fluorescence upconversion.

This high power also allows the Legend Elite Duo to be used as a shared resource, where the output is split in order to power several separate experiments, the company said.

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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amplifierBasic ScienceCARSCoherentEvolution-HEfluorescenceLegend EliteLegend Elite DuoMicraMiraoscillatorphotochemistryphotonicsProductsspectroscopyultrafastVitesse

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