Resonant Enhanced Frequency Converter

A technology of frequency converters and resonators, applied in instruments, lasers, phonon exciters, etc., can solve the problems of requiring time and effort, increasing the cost of manufacturing frequency converters, etc.

Active Publication Date: 2017-12-05
IPG PHOTONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Neither of these modifications is a simple operation but requires time and effort, adding to the cost of manufacturing the frequency converter

Method used

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  • Resonant Enhanced Frequency Converter
  • Resonant Enhanced Frequency Converter
  • Resonant Enhanced Frequency Converter

Examples

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Embodiment Construction

[0026] Reference is now made in detail to the disclosed configurations. show figure 2 and 3 The fiber laser system of ® is merely an example of an arbitrary continuous wave single-frequency single-mode laser system operating at the desired fundamental wavelength in conjunction with the disclosed resonators. The disclosed bow-tie resonators are also exemplary and may be substituted with any annular cavity configuration known to those skilled in the art. Where possible, in the drawings and descriptions, the same or similar reference symbols are used to denote the same or similar components or steps. The drawings are in simplified form and are not necessarily to scale. For convenience and clarity only, the terms "connected", "coupled" and similar terms do not necessarily imply direct and immediate connections, but also include connections through intermediate elements or devices.

[0027] The disclosed structures and methods represent an improvement over conventional externa...

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Abstract

A frequency converter for converting a single-mode input beam at a fundamental frequency to an output beam at a converted frequency is configured with a plurality of phase-separated optical components defining a resonant cavity. The optical assembly shapes the input beam to have at least one beam waist within the cavity. The frequency converter also includes a nonlinear crystal located within the resonator in a diverging beam having a Rayleigh length less than the round-trip length of the resonator such that the center of the crystal is aligned with the beam waist along the beam path. separate, or the nonlinear crystal is located in a collimated beam whose Rayleigh length is greater than the resonator round-trip length.

Description

technical field [0001] The present disclosure relates to frequency conversion of laser radiation by nonlinear interaction of the laser radiation with a suitable nonlinear crystal. In particular, the present disclosure relates to an improved design of an external cavity for frequency conversion in which the optical power density in the body and surface of the crystal is reduced to significantly increase the lifetime of the crystal. Furthermore, the present disclosure relates to improved manufacturability of an external cavity for frequency conversion constructed using a set of standard optical components usable for a large input power range. Background technique [0002] It is well known that there are many wavelengths that are not directly accessible with modern laser technology. Nonlinear frequency conversion techniques allow the generation of laser radiation at these wavelengths in the UV, visible and IR spectral ranges. [0003] In theory, the term "frequency conversion...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/10H01S3/109H01S3/05
CPCG02F1/3525G02F1/353G02F1/37G02F1/3503G02F1/3542H01S3/0092
Inventor 阿列克谢·阿夫多欣奥莱克休伊·安德鲁斯亚克
Owner IPG PHOTONICS CORP
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