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Random microchip laser

Yan Feng, Shenghong Huang, Guanshi Qin, Mitsuru Musha, and Ken-ichi Ueda

Open Access Open Access

Abstract

A microchip-type laser with multiple scattering from powder as necessary feedback is demonstrated. The laser consists of a transparent ceramic Nd:YAG microchip and a Nd:YAG powder tablet, operates at quasi-continuous-wave regime pumped by a laser diode array.

©2005 Optical Society of America

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Figures (4)
Fig. 1.
Fig. 1. Left: schematic diagram of the sample in which lasing is realized. Right: typical emission waveforms from the microchip alone

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Fig. 2.
Fig. 2. Left: typical emission waveforms from the microchip-powder hybrid sample at different pump power, from up to bottom corresponding pump power is 156, 140, 124, 106, 85, 68, 48, and 28W, respectively. Right: a zoom-in view of the left graph.

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Fig. 3.
Fig. 3. The pulse repetition rate and emission intensity versus pump power

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Fig. 4.
Fig. 4. Emission spectra taken at different pump levels.

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