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	Characteristics of intensity modulation in single-mode microship Nd : YAG lasers with anisotropic feedback and its application - art. no. 66221A
	Tan Yidong ; Zhang Shulian
	2010-05-10 ; 2010-05-10
会议名称	INTERNATIONAL SYMPOSIUM ON PHOTOELECTRONIC DETECTION AND IMAGING 2007: LASER, ULTRAVIOLET, AND TERAHERTZ TECHNOLOGY ; International Conference on Photoelectronic Detection and Imaging ; Beijing, PEOPLES R CHINA ; Web of Science
关键词	optical feedback bireffingence phase difference photoelastic QUASI-ISOTROPIC LASER ABSOLUTE DISTANCE MEASUREMENT SELF-MIXING INTERFERENCE SURFACE-EMITTING LASERS OPTICAL FEEDBACK EXTERNAL-CAVITY SENSING APPLICATIONS DOPPLER-VELOCIMETER DIODE-LASER POLARIZATION Engineering, Electrical & Electronic Optics Physics, Applied Imaging Science & Photographic Technology
中文摘要	The characteristic of laser intensity modulation in microchip Nd:YAG lasers with anisotropic feedback is presented, on which a force measurement scheme based is demonstrated. The measurement system is composed of a microchip Nd:YAG laser, a birefringence element (BFE), and an external feedback mirror. Due to the bireffingence effect of BFE, the external cavity modulates the laser intensities in two orthogonal directions with a phase difference (PF), which is twice as large as that of the BFE. If a photoelastic element with force loaded on is served as BFE, the PF between two in-quadrature laser intensities is proportional to the force loaded on the photoelastic element. Thus, the force can be easily and conveniently obtained from the PF between two in-quadrature laser intensities. A theoretical model is put forward and is in good agreement with the experimental results. Moreover, the results here can also be applied to displacement measurement. Our researches broaden the optical feedback in application for precision measurement.
会议录出版者	SPIE-INT SOC OPTICAL ENGINEERING ; BELLINGHAM ; 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
语种	英语 ; 英语
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/19282]
专题	清华大学
推荐引用方式 GB/T 7714	Tan Yidong,Zhang Shulian. Characteristics of intensity modulation in single-mode microship Nd : YAG lasers with anisotropic feedback and its application - art. no. 66221A[C]. 见:INTERNATIONAL SYMPOSIUM ON PHOTOELECTRONIC DETECTION AND IMAGING 2007: LASER, ULTRAVIOLET, AND TERAHERTZ TECHNOLOGY, International Conference on Photoelectronic Detection and Imaging, Beijing, PEOPLES R CHINA, Web of Science.

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