Multipath laser apparatus using a solid-state slab laser rod
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United States of America Patent
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Apr 7, 2009
Grant Date -
Jan 4, 2007
app pub date -
Jun 21, 2006
filing date -
Jun 21, 2005
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Expired
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Abstract
A laser apparatus has a multipath solid-state slab laser rod and an excitation source that excites it, and uses a solid-state slab laser rod that has a trapezoid or parallelogram-shaped cross section along the optical path, that is provided with six or more faces and that has a light amplifying effect or a nonlinear optical effect. The light that is incident to the laser rod is totally reflected at the incident-light end face and exit end face of the laser rod, passes back through the interior of the laser rod a plurality of times, e.g., three times, and then exits. For light amplification, excitation light is irradiated from the side face. In addition, for nonlinear optical effects, the z-axis of a nonlinear optical crystal is disposed so as to be orthogonal to the plane of the optical path, and the temperature of the solid-state slab laser rod is kept at the phase-matching temperature. This laser apparatus of this configuration solves drawbacks of prior-art laser rods so that the high conversion rate from excitation light to laser light is obtained at a high laser gain.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY
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Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Ishizu, Mitsuo | Koganei, JP | 8 | 36 |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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