A deep ultraviolet light frequency comb generating device

A deep ultraviolet light generation device technology, which is applied in the field of nonlinear optical frequency conversion laser, can solve the problem of low frequency doubling efficiency, and achieve the effect of increasing the frequency of the optical comb, reducing uncertainty, and simple structure

Active Publication Date: 2022-06-24
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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Problems solved by technology

And KBe 2 BO 3 F(KBBF) and RbBe 2 BO 3 F(RBBF) two nonlinear optical crystals are currently the only crystals that can achieve short wavelengths (ultraviolet, deep ultraviolet) through direct frequency doubling, but wide-spectrum frequency doubling is due to different phase matching angles corresponding to different spectral components, resulting in frequency doubling efficiency. Low

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  • A deep ultraviolet light frequency comb generating device
  • A deep ultraviolet light frequency comb generating device
  • A deep ultraviolet light frequency comb generating device

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Embodiment Construction

[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the specific embodiments and the accompanying drawings. It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts of the present invention.

[0026] A schematic structural diagram of an apparatus according to an embodiment of the present invention is shown in the accompanying drawings. The figures are not to scale, some details are exaggerated for clarity, and some details may have been omitted. The shapes of the various structures shown in the figures and the relative sizes and positional relationships between them are only exemplary, and in practice, there may be deviations du...

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Abstract

The invention discloses a deep ultraviolet light frequency comb generating device. The deep ultraviolet light frequency comb generating device includes a fundamental frequency optical comb light source 1, a frequency doubling crystal 2, a dispersion device 3, and a frequency doubling prism coupled with a frequency doubling prism sequentially arranged along an optical path. Device 4, dispersion compensator 5 and beam reducer 6. The device provided by the embodiment of the present invention can extend the band of the optical frequency comb to the deep ultraviolet band through cascading frequency doubling, the frequency of the deep ultraviolet optical frequency comb becomes four times that of the fundamental frequency comb, and the line width can be changed to the fundamental frequency In theory, the uncertainty can be reduced by about one order of magnitude, thereby improving the measurement accuracy in precision measurement.

Description

technical field [0001] The invention relates to the technical field of nonlinear optical frequency conversion lasers, in particular to a device for generating a deep-ultraviolet optical frequency comb. Background technique [0002] Optical frequency combs are optical frequency scales with definite comb tooth intervals, which can be generated in infrared, visible and ultraviolet wavelength bands, and are widely used in many fields. Optical frequency combs in the communication band are mainly used in the field of optical communication to achieve efficient transmission of information; optical frequency combs in the ultraviolet band are mainly used for high-precision measurements in the fields of physics, chemistry, and astronomy; Large application, can realize infrared imaging and so on. But so far, there is no relevant report on the deep-ultraviolet optical frequency comb below 200nm. [0003] Nonlinear frequency conversion is a discipline that emerged with the development o...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/35G02F1/37
CPCG02F1/353G02F1/37G02F1/3501
Inventor 宗楠宋艳洁彭钦军王志敏张申金杨峰张丰丰薄勇
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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