Design of a mode-hop-free tunable external cavity diode laser with a PLZT electro-optic ceramic deflector

Yan-guang Sun; Fang Wei; Di-jun Chen; Guo-feng Xin; Qing Ye; Hai-wen Cai; Rong-hui Qu

doi:10.1117/12.900966

22 August 2011 Design of a mode-hop-free tunable external cavity diode laser with a PLZT electro-optic ceramic deflector

Yan-guang Sun, Fang Wei, Di-jun Chen, Guo-feng Xin, Qing Ye, Hai-wen Cai, Rong-hui Qu

Author Affiliations +

Proceedings Volume 8192, International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging; 81923I (2011) https://doi.org/10.1117/12.900966
Event: International Symposium on Photoelectronic Detection and Imaging 2011, 2011, Beijing, China

Abstract

A stable tunable external cavity diode laser (ECDL) which uses an intracavity electro-optic deflector incorporated into a Littrow-type external cavity as a wavelength tunable element is proposed. The deflector comprises an antireflection-coated rectangle Lead Lanthanum Zirconate Titanate (PLZT) electro-optic ceramic with a pair of parallel trapezoidal electrodes on the up and down surfaces, which can simultaneously change the cavity length and the beam-grating angle to achieve mode-hop-free tuning. The theory for mode-hop-free tuning will be presented in this paper, and the model calculations predict that the laser can be tuned continuously by as much as 110GHz. This new approach is simple in structure with no mechanical moving parts and has potential configuration of compact grating-stabilized ECDL.

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Yan-guang Sun, Fang Wei, Di-jun Chen, Guo-feng Xin, Qing Ye, Hai-wen Cai, and Rong-hui Qu "Design of a mode-hop-free tunable external cavity diode laser with a PLZT electro-optic ceramic deflector", Proc. SPIE 8192, International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging, 81923I (22 August 2011); https://doi.org/10.1117/12.900966

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