Solid state laser excited by laser diode
AssigneeNEC Corporation
InventorSadamasa Hanihara
Life of this patent
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Abstract
A hollow member or an envelope 7 housing a laser medium 3 having a reflective coating 31 on one surface thereof, a non-linear optical crystal 4 and an output mirror 5 having a reflective coating 51 on one surface thereof has a thin-walled portion 71 in its center portion. The air-tightly sealed envelope 7 is evacuated through an exhausting pipe 9 and, after sealing the pipe 9, a laser resonator unit 70 is obtained. By arranging a laser diode unit 10 on the reflective coating 31 of the laser medium 3 and integrating it by a connecting member 17, a long life-time, compact solid state laser excited by laser diode is obtained.
Claims10
A solid state laser excited by a laser diode comprising:
- a hollow member, an output mirror air-tightly sealing one end of said hollow member, a laser medium air-tightly sealing the other end of said hollow member for constituting an optical resonator together with said output mirror, a non-linear optical crystal arranged such that it is brought into intimate contact with both of said output mirror and said laser medium by deforming a center portion of said hollow member, and a laser diode disposed on the side of said laser medium opposite to said non-linear optical crystal.
A solid state laser excited by a laser diode comprising:
- an optical resonator having a metal hollow member, an output mirror air-tightly sealing one end of said hollow member with adhesive and a laser medium air-tightly sealing the other end of said hollow member, said hollow member having a thin-walled portion, said thin-walled portion being deformed by exhausting an interior of said optical resonator so that a non-linear optical crystal arranged between said output mirror and said laser medium is brought into intimate contact with both of said output mirror and said laser medium, said hollow member being integrated with a laser diode light source unit arranged on the side of said laser medium opposite to said non-linear optical crystal, through a connecting member.
Dependencies are inferred from the claim text.