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EP0712184A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Wavelength-conversion laser having nonlinear optical crystal which effects type-I phase-matching

Assignee: Fujifilm Holdings Corp
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Filing: 1995-06-13
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Granted: —
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Expires: 2015-06-13
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Abstract

Abstract A wavelength-conversion laser capable of maintaining a single longitudinal mode even when the temperature of a resonator changes. The wavelength-conversion laser is made up of a solid-state laser crystal doped with Neodymium which is pumped by light, a nonlinear optical crystal disposed in a resonator for converting the wavelength of a solid-state laser beam emanated from the solid-state laser crystal, and an etalon disposed in the resonator for realizing a single longitudinal mode. The nonlinear optical crystal is a crystal, which effects type-I phase-matching, such as MgO:LiNbO₃ crystal. Moreover, the nonlinear optical crystal possesses periodic domain reversals.

Inventors

  • 👤 Hiroaki c/o Fuji Photo Film Co. Ltd. Hyuga

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-07 10:28
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/10; H01S3/106; H01S3/108; H01S3/109; G; G02; G02F; G02F1/00; G02F1/35; G02F1/353; G02F1/3544; G02F1/3548; H01S3/14; H01S3/16; H01S3/163; H01S3/1671; H01S3/1673

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 79 words
A wavelength-conversion laser including a YVO₄ crystal doped with Neodymium (Nd) which is pumped by light, a nonlinear optical crystal disposed in a resonator for converting the wavelength of a solid-state laser beam emitted from the YVO₄ crystal, and an etalon disposed in the resonator for changing the mode of oscillation of the solid-state laser beam to a single longitudinal mode, the wavelength-conversion laser comprising: a crystal for realizing type-I phase matching being employed as the nonlinear optical crystal.
Claim 2
Dependent Claim 17 words
The wavelength-conversion laser as defined in Claim 1, wherein the nonlinear optical crystal has periodic domain reversals.
Claim 3
Dependent Claim 22 words
The wavelength-conversion laser as defined in Claim 2, wherein the nonlinear optical crystal possessing the periodic domain reversals is a MgO:LiNbO₃ crystal.

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