Linear & Nonlinear Frequency Converters

L. Esterowitz; C. Marquardt; I. Schneider; R. Allen

doi:10.1117/12.937280

30 January 1987 Linear & Nonlinear Frequency Converters

L. Esterowitz, C. Marquardt, I. Schneider, R. Allen

Proceedings Volume 0709, Laser Research and Development in the Northeast; (1987) https://doi.org/10.1117/12.937280
Event: Cambridge Symposium-Fiber/LASE '86, 1986, Cambridge, MA, United States

Abstract

A. Linear Frequency Converters 1. Erbium 1.73 μm-pumped KI Laser between 2-4 μm Previously,1 we reported laser action for the lithium (F2+)A center in KI in which tuning was achieved from 2.59 to 3.65 μm. With more experimental improvements, we reported (F2+)A-center tunability ranging from 2.38 to 3.99 μm. Furthermore, with the addition of F2+ centers coexisting with (F2+)A centers, the combined range of continuous tuning extends below 2 μm, spanning almost an entire octave. The 1.73-μm line from a pulsed Er:LiYF4 (YIE) laser was used as a pump source for both centers. The F2+ center consists of an electron trapped by an adjacent pair,2-5 and the (F2+)A center consists of an F2+ center next to a substitutional cation impurity, such as Li+.6-7

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L. Esterowitz, C. Marquardt, I. Schneider, and R. Allen "Linear & Nonlinear Frequency Converters", Proc. SPIE 0709, Laser Research and Development in the Northeast, (30 January 1987); https://doi.org/10.1117/12.937280

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