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First, the symmetrical Czerny\u2013Turner structure is selected as the designed optical structure. Then, according to the optical parameters, the optical constraints are analyzed and summarized; and a set of system design methods based on optical constraints is proposed, and ZEMAX is used to design and simulate the optical system. In addition, effective solutions are proposed for the two problems caused by widening the spectral range. Finally, the optical system is actually measured, and the measurement results meet the expected design purpose.<\/jats:p>","DOI":"10.1142\/s0218001425520445","type":"journal-article","created":{"date-parts":[[2025,12,10]],"date-time":"2025-12-10T05:57:52Z","timestamp":1765346272000},"source":"Crossref","is-referenced-by-count":1,"title":["Design and Optimization of Broadband Micro-Spectrometer System"],"prefix":"10.1142","volume":"40","author":[{"ORCID":"https:\/\/orcid.org\/0009-0005-3226-4742","authenticated-orcid":false,"given":"Guodong","family":"Li","sequence":"first","affiliation":[{"name":"State Grid Shanxi Electric Power Company Electric Power Research Institute, Taiyuan 030001, P. R. 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