High efficiency mode matched solid state laser with transverse pumping
First Claim
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1. A mode matched diode pumped solid state laser, comprising:
- a block of laser material having a pair of opposed sides;
cavity forming means positioned around the block to define a laser cavity having a tightly folded zig-zag resonator portion within the block between the opposed sides at a preselected fold angle;
a plurality of linearly spaced laser diode pumping sources positioned adjacent to one of the opposed sides and substantially aligned with the zig-zag portion of the resonator;
the fold angle being selected to substantially match the mode volume with pump radiation from the pump sources.
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Abstract
A high efficiency pumping scheme mode matches the TEMOO laser mode volume with a plurality of linearly spaced laser diode pumping sources positioned along a lateral side of a block of laser material. The cavity resonator within the block is configured in a tightly folded zig-zag configuration. Pump radiation from the diode pumping sources is collimated by an optical fiber and the fold angle is selected to mode match the pump radiation to the mode volume.
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Citations
20 Claims
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1. A mode matched diode pumped solid state laser, comprising:
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a block of laser material having a pair of opposed sides; cavity forming means positioned around the block to define a laser cavity having a tightly folded zig-zag resonator portion within the block between the opposed sides at a preselected fold angle; a plurality of linearly spaced laser diode pumping sources positioned adjacent to one of the opposed sides and substantially aligned with the zig-zag portion of the resonator; the fold angle being selected to substantially match the mode volume with pump radiation from the pump sources. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of efficiently puming a solid state laser by means of a plurality of linearly spaced laser diode pumping sources, comprising:
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forming a block of laser material with two opposed sides; forming a laser cavity having a tightly folded zig-zag resonator portion within the block between the opposed sides at a preselected fold angle; positioning the pumping sources adjacent one of the opposed sides substantially aligned with the zig-zag resonator portion; selecting the fold angle to substantially match the mode volume with pump radiation from the pump sources. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A collimated laser diode bar, comprising:
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a laser diode bar having a plurality of separate laser diode arrays spaced thereon; an optical fiber; precision spacing means for holding the fiber in a precision spaced relationship to the diode bar with the diode arrays at its focus to substantially collimate the outputs of the diode arrays. - View Dependent Claims (19, 20)
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Specification