Conveyable super-stable optical reference cavity for space application

A reference cavity and space technology, applied in the field of ultra-stable optical reference cavity, can solve problems such as difficult to overcome the complex vibration environment of space, difficult to control the adjustment of extrusion force, and destroy the perfect symmetry of structural mechanics, so as to achieve the protection of integrity and good Vibration sensitivity, simple effect of assembly adjustment

Active Publication Date: 2015-09-09
NAT TIME SERVICE CENT CHINESE ACAD OF SCI
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  • Claims
  • Application Information

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Problems solved by technology

However, there are two defects in this ultra-stable optical reference cavity: first, when supporting the spherical cavity, additional pressure to squeeze the sphere is required, which not only destroys the perfect symmetry of the original structural mechanics of the sphere, but also makes it difficult to control the inte

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  • Conveyable super-stable optical reference cavity for space application
  • Conveyable super-stable optical reference cavity for space application
  • Conveyable super-stable optical reference cavity for space application

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Embodiment Construction

[0020] see Figure 1-4 , the space application and transportable ultra-stable optical reference cavity of the present invention includes a spheroid 1 and a ring 2 for fixing the spheroid 1, and a light-through hole 5 passing through the center of the spheroid 1 is arranged on the spheroid 1, Optical lenses 3 are arranged at both ends of the light-through hole 5, and the optical lenses 3 are made of ultra-low expansion material as a substrate material, and the sphere 1 is also provided with a vacuum exhaust hole 4 and a fixing hole 6; The ultra-low expansion material is ULE, single crystal silicon, ceramics, glass-ceramic or fused silica. The ring 2 is fixedly sleeved on the outer wall of the spheroid 1 , and the horizontal plane of the ring 1 is in an orthogonal relationship with the direction of the optical axis of the spheroid 1 . The ring 2 and the spheroid 1 are an integral structure. The spheroid 1 is provided with a plurality of vacuum exhaust holes 4 , and each vacuum...

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Abstract

The invention discloses a conveyable super-stable optical reference cavity for space application. The conveyable super-stable optical reference cavity comprises a globoid and a ring for fixing the globoid. The globoid is provided with a light through hole passing the center of the globoid, optical lenses are arranged at the two ends of the light through hole and made by utilizing an ultralow expanding material as a substrate material, and the globoid is further provided with a vacuum vent hole and a fixing hole. The ultralow expanding material is ULE, single crystal silicon, ceramic, microcrystalline glass or fused quartz. The conveyable super-stable optical reference cavity for space application is designed in a mode of combining a sphere and the ring. As shown in the background technology, the conveyable super-stable optical reference cavity for space application can well protect sphere space structural mechanics integrity, not only can achieve good vibration sensitivity in the three-dimensional direction, but also can meet the harsh conditions of space vibration impact and is simple to assemble and adjust on the whole.

Description

technical field [0001] The invention belongs to the field of ultra-stable optical reference cavities, and relates to an ultra-stable optical reference cavity structure, in particular to a space application and transportable ultra-stable optical reference cavity. Background technique [0002] With the development of aerospace technology, the United States, the European Union, Japan and other developed countries and organizations in the world are scrambling to carry out optical clock research programs in the field of space, in order to strive for the commanding heights of time and frequency, and to achieve higher precision applications in navigation, satellites, and national defense. As an extremely critical component in the optical clock research program, the ultra-stable optical reference cavity has played an irreplaceable role. Some key indicators in the optical clock research program are closely related to the stability of the effective cavity length of the ultra-stable op...

Claims

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Application Information

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IPC IPC(8): G04F5/14H03L7/26
Inventor 许冠军刘涛董瑞芳张首刚
Owner NAT TIME SERVICE CENT CHINESE ACAD OF SCI
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