Field-widened Michelson interferometer with an ultra-wide band and ultra-large field for spectral discrimination in high-spectral-resolution lidar.

• Tác giả: Jian Bai, Xinming Li, Dong Liu, Shaojing Peng, Lan Wu, Peituo Xu, Zhaorui Xu
• Ngôn ngữ: eng
• Ký hiệu phân loại: 001.942 Unidentified flying objects (UFOs)
• Thông tin xuất bản: United States : Optics letters , 2025
• Bộ sưu tập: NCBI
• ID: 728469
• Chủ đề: 1. Field; 2. Widened; 3. Michelson

Tóm tắt

A novel field-widened Michelson interferometer (FWMI) with an ultra-wide band and ultra-large field is proposed to act as a spectral discriminator in shipborne oceanic high-spectral-resolution lidar (HSRL). By matching the primary spherical and chromatic aberration, a half field of view (FOV) over 10° throughout a spectral band from visible to near infrared (VIS-NIR) is achieved, which is about three times that of the classic single-wavelength FWMI and 50 times that of the widely used Fabry-Perot interferometer. Fabrication and assembly tolerances are analyzed, demonstrating that the tilt tolerance can be improved by four times as well combined with a pre-focusing system. Prototype experiments prove that the characteristics of an ultra-wide band and ultra-large field are technically achievable. The proposed method and results are expected to promote the development and widespread use of multi-wavelength oceanic HSRL.