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Deep ultraviolet frequency comb generating device

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

Active Publication Date: 2020-11-20
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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  • Deep ultraviolet frequency comb generating device
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Embodiment Construction

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

[0026] A schematic structural diagram of a device according to an embodiment of the present invention is shown in the accompanying drawings. The figures are not drawn to scale, with certain details exaggerated and possibly omitted for clarity. The shapes of the various structures shown in the drawings and their relative sizes and positional relationships are only exemplary, and may deviate due to manufacturing tolerances...

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Abstract

The invention discloses a deep ultraviolet frequency comb generating device. The deep ultraviolet frequency comb generating device comprises a fundamental frequency optical comb light source 1, a frequency doubling crystal 2, a dispersion device 3, a quadruplicated frequency doubling prism coupling device 4, a dispersion compensator 5 and a beam shrinking device 6 which are sequentially arranged along an optical path. According to the device provided by the embodiment of the invention, the optical frequency comb wave band can be expanded to the deep ultraviolet wave band in a cascaded frequency multiplication mode, the frequency of the deep ultraviolet frequency comb is changed into four times of that of the fundamental frequency optical comb, the line width can be changed into half of that of the fundamental frequency, and the uncertainty can be reduced by about one magnitude theoretically, so that the measurement precision in precision measurement is improved.

Description

technical field [0001] The invention relates to the technical field of nonlinear optical frequency conversion laser, in particular to a deep ultraviolet light frequency comb generation device. Background technique [0002] An optical frequency comb is an optical frequency scale with a definite comb tooth interval, which can be generated in infrared, visible light, and ultraviolet bands, and has been widely used in many fields. Optical frequency combs in the communication band are mainly used in the field of optical communication to realize efficient transmission of information; optical frequency combs in the ultraviolet band are mainly used in high-precision measurements in the fields of physics, chemistry, and astronomy; optical frequency combs in the infrared band are widely used in the medical field. Large applications, such as infrared imaging can be realized. However, there is no relevant report on deep ultraviolet light frequency combs below 200 nm. [0003] Nonlinea...

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Application Information

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Patent Type & Authority Applications(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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