1 nanosecond E-O Q-switched Nd:YVO4 laser

Chi Feng; Qiang Li; Meng-hua Jiang; Jin-guo Wang; Wei-rong Guo

doi:10.1117/12.896697

19 August 2011 1 nanosecond E-O Q-switched Nd:YVO₄ laser

Chi Feng, Qiang Li, Meng-hua Jiang, Jin-guo Wang, Wei-rong Guo

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; 81920D (2011) https://doi.org/10.1117/12.896697
Event: International Symposium on Photoelectronic Detection and Imaging 2011, 2011, Beijing, China

Abstract

This paper introduces a novel kind of E-O Q-switched Nd:YVO4 compact laser with ultra-narrow pulse width. In this paper, the general equations describing Q-switched laser operation are given and the factors about cavity length, laser gain medium, the loss inner resonator and pump energy to influence the laser pulse width are analyzed theoretically. These parameters greatly optimized experiment. The fiber-coupled laser-diode end-pumped laser we developed simplifies the conventional structure of E-O Q-switched lasers. The cavity length is effectively reduced to 19mm to narrow the pulse width. The pulse width of 1.049ns is obtained and the single pulse energy reaches to 0.32mJ. This 1 nanosecond laser has the advantage in reliable and outstanding performance with simplified structure. Most importantly, we investigated the performance of an innovative RTP crystal in the Q-switched laser with high repetition frequency. It was experimentally proven that this narrow pulse width laser can operate with high repetition frequency because of the novel Q-switched crystal RTP with great performance. Both theoretical analysis and experiment data demonstrate that sub-nanosecond pulses can also be produced with E-O Q-switching technique. Thus, this technique can be widely applied.

Citation Download Citation

Chi Feng, Qiang Li, Meng-hua Jiang, Jin-guo Wang, and Wei-rong Guo "1 nanosecond E-O Q-switched Nd:YVO₄ laser", 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, 81920D (19 August 2011); https://doi.org/10.1117/12.896697

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