Optical reflection cavity, optical multi-pass cell system, and optical resonant cavity system
By introducing multiple tilted sub-plane mirrors into the optical reflection cavity, the requirement for small-volume, long-path optical reflection cavities in existing technologies is solved, achieving a longer optical path and higher spot density, thus improving the performance of the optical reflection cavity.
WO2026137411A1PCT designated stage Publication Date: 2026-07-02XUZHOU XUHAI OPTO ELECTRONICS TECH CO LTD
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- XUZHOU XUHAI OPTO ELECTRONICS TECH CO LTD
- Filing Date
- 2024-12-27
- Publication Date
- 2026-07-02
AI Technical Summary
Technical Problem
Existing optical cavity technology cannot meet the industrial sector's demand for small size and long optical path.
Method used
An optical reflection cavity is designed by introducing multiple sub-plane mirrors on the main plane mirror and adjusting their tilt angle and position to enable the light beam to be reflected multiple times within a finite volume, thereby increasing the optical path and the distribution density of the reflected light spot.
Benefits of technology
It achieves more reflections and a longer optical path within a limited volume, while increasing the distribution density of the light spot and improving the optical path-to-volume ratio and signal-to-noise ratio of the optical reflection cavity.
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Smart Images
Figure CN2024143290_02072026_PF_FP_ABST
Abstract
The present application relates to the technical field of optical reflection cavities. Provided are an optical reflection cavity, an optical multi-pass cell system, and an optical resonant cavity system. In the optical reflection cavity provided in the embodiments of the present application, a first sub-plane mirror is introduced into a plano-concave cavity, the first sub-plane mirror is disposed in an edge region of a main plane mirror in a y-axis direction and is inclined relative to the main plane mirror in the y-axis direction, and the length of the first sub-plane mirror in an x-axis direction is at least one times the width of a trajectory of a light beam on the main plane mirror in the x-axis direction, so that the light beam can be reflected by the first sub-plane mirror at least once, and the translation direction of the trajectory is continuously changed after the light beam is reflected by the first sub-plane mirror, so as to increase the number of reflections of the light beam within a limited volume, thereby increasing an optical path length and the distribution density of reflected light spots. Compared with a Herriot cell and a White cell, more reflections, a larger optical-path-length-to-volume ratio and a higher distribution density of the light spots can be achieved.
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