| 摘要 |
An optomechanical structure of a portable laser spectrum analyser comprises a base plate (1), a laser source (2) fixed on the base plate (1), a spectroscope (3), focusing lens (4), a filter (5), receiving lens (6), and a spectrum detector (7), wherein the base plate (1) is provided with positioning slots for precisely positioning optical elements and the optical elements are mounted with precision on the base plate (1) via a support, with the positioning error being less than 0.06 mm, enabling the collimated laser emitted from the laser source to enter the spectrum detector (7) after passing through the optical elements, such as the spectroscope (3). Because no optical fiber is used between the optical elements, the optical coupling efficiency is high, and there is no interference resulting from the bending or movement of optical fiber. Therefore the optomechanical structure has a compact structure, a stable optical path, and low energy loss. |
