Tunable Optical Frequency Comb Generated Using Periodic Windows in a Laser and Its Application for Distance Measurement

A novel method for the generation of an optical frequency comb (OFC) is presented. The proposed approach uses a laser diode with optical feedback and operating at a specific nonlinear dynamic state named periodic window. In this case, the laser spectrum exhibits a feature with a series of discrete,...

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Bibliographic Details
Published in:	Sensors (Basel, Switzerland) Vol. 23; no. 21; p. 8872
Main Authors:	Chen, Zhuqiu, Fang, Can, Ruan, Yuxi, Yu, Yanguang, Guo, Qinghua, Tong, Jun, Xi, Jiangtao
Format:	Journal Article
Language:	English
Published:	Basel MDPI AG 31-10-2023
Subjects:	distance measurement Electric fields Fourier transforms Interferometry laser diode laser dynamics Lasers optical feedback optical frequency comb Optics Spectrum analysis
Online Access:	Get full text
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Summary:	A novel method for the generation of an optical frequency comb (OFC) is presented. The proposed approach uses a laser diode with optical feedback and operating at a specific nonlinear dynamic state named periodic window. In this case, the laser spectrum exhibits a feature with a series of discrete, equally spaced frequency components, and the repetition rate can be flexibly adjusted by varying the system parameters (e.g., external cavity length), which can provide many potential applications. As an application example, a dual-OFC system for distance measurement is presented. The results demonstrate the system’s ability to achieve target distance detection, underscoring its potential for real-world applications in this field.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1424-8220 1424-8220
DOI:	10.3390/s23218872