Jiuyuan Zhu , Yang Gao , Bo Zhang , Zhongwen Deng , Yuanlong Fan , Xinjian Zhang , Adam Jones , Nigel Copner , Kang Li
{"title":"Design and optimization of a grating-free external cavity diode laser with over 6 THz phase-continuous tunability","authors":"Jiuyuan Zhu , Yang Gao , Bo Zhang , Zhongwen Deng , Yuanlong Fan , Xinjian Zhang , Adam Jones , Nigel Copner , Kang Li","doi":"10.1016/j.optcom.2025.131504","DOIUrl":null,"url":null,"abstract":"<div><div>A novel grating-free tunable external cavity diode laser has been designed and optimized, featuring an impressive phase-continuous tuning range exceeding 6 THz. The laser cavity is constructed from two sets of right-angled mirrors arranged in a rectangular configuration. These mirrors are symmetrically positioned relative to the central axis and are parallel in pairs, effectively forming two periscopic assemblies. Wavelength adjustment is achieved by rotating a double-sided mirror positioned centrally within the mirror sets, and an etalon is utilized as the wavelength selector. This pivot-point-free rotation simultaneously tunes both the cavity length and the etalon mode wavelength, ensuring high synchronization between the two. With a low refractive index material used for the etalon, the tuning range can theoretically extend up to 6.022 THz.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"578 ","pages":"Article 131504"},"PeriodicalIF":2.5000,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics Communications","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S003040182500032X","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/1/9 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
A novel grating-free tunable external cavity diode laser has been designed and optimized, featuring an impressive phase-continuous tuning range exceeding 6 THz. The laser cavity is constructed from two sets of right-angled mirrors arranged in a rectangular configuration. These mirrors are symmetrically positioned relative to the central axis and are parallel in pairs, effectively forming two periscopic assemblies. Wavelength adjustment is achieved by rotating a double-sided mirror positioned centrally within the mirror sets, and an etalon is utilized as the wavelength selector. This pivot-point-free rotation simultaneously tunes both the cavity length and the etalon mode wavelength, ensuring high synchronization between the two. With a low refractive index material used for the etalon, the tuning range can theoretically extend up to 6.022 THz.
期刊介绍：
Optics Communications invites original and timely contributions containing new results in various fields of optics and photonics. The journal considers theoretical and experimental research in areas ranging from the fundamental properties of light to technological applications. Topics covered include classical and quantum optics, optical physics and light-matter interactions, lasers, imaging, guided-wave optics and optical information processing. Manuscripts should offer clear evidence of novelty and significance. Papers concentrating on mathematical and computational issues, with limited connection to optics, are not suitable for publication in the Journal. Similarly, small technical advances, or papers concerned only with engineering applications or issues of materials science fall outside the journal scope.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
