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Snake Creek Lasers Achieves 2 Milestones

Photonics.com
Jun 2010
HALLSTEAD, Pa., June 15, 2010 — Dr. David C. Brown, president and CTO of Snake Creek Lasers, announced that the company has achieved two major milestones in the development of cryogenically cooled solid-state laser technology: 

    • An Yb:YAG cryogenically cooled oscillator-amplifier has produced >1000 W (1 kW) of near-diffraction-limited output power. 

    • A mode-locked fiber laser seeded Yb:YAG cryogenically cooled laser with a double-pass preamplifier and a single-pass power amplifier has produced more than 700 W of ultrafast average power. The laser emits at a 50-MHz (5 x 107) repetition rate, with a pulse width of 11 ps (1.1 x 10–11 s), an energy/pulse of >13 mJ and a peak power of >1.1 MW (1.1 x 106 W). The output beam is near-diffraction-limited.

Both laser systems are capable of sustained operation for hours or days and are state-of-the-art compact devices.

Previously announced major milestones reached by the company include the demonstration of a 550-W cryogenically cooled Yb:YAG oscillator with near-diffraction-limited output in 2008 and record efficiencies for a solid-state laser system, a cryogenically cooled Yb:YAG CW oscillator that produces 91.5 percent slope efficiency, 86 percent optical-optical efficiency and 100 percent photon-photon efficiencies, all in 2010.

For more information, visit:  www.snakecreeklasers.com 





GLOSSARY
fiber laser
A laser in which the lasing medium is an optical fiber doped with low levels of rare-earth halides to make it capable of amplifying light. Output is tunable over a broad range and can be broadband. Laser diodes can be used for pumping because of the fiber laser's low threshold power, eliminating the need for cooling.
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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