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Quantum Electronics and Laser Science Conference

Analysis of Intrinsic Optical Bistability in Tm3+ Doped Crystals

Mikhail A. Noginov, Daniel Casimir, Martina Vondrova

Published May 19, 2002• 0 citations
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Abstract

The phenomenon of intrinsic optical bistability (IOB)1 is of great interest because of its potential applications in optical switches, telecommunication, etc. In this work, we theoretically study IOB in Tm doped laser crystals co-doped with Ho and Yb.

Related papers

Analysis of intrinsic optical bistability in Tm/sup 3+/ doped crystals

Mikhail A. Noginov, Daniel Casimir, Martina Vondrova

Summary form only given. The phenomenon of intrinsic optical bistability (IOB) is of great interest because of its potential applications in optical switches, telecommunication, etc. In this work, we theoretically study IOB in Tm doped laser crystals co-doped with Ho and Yb.

Quantum Electronics and Laser Science Conference•Jun 25, 2003•0 citations

Analysis of intrinsic optical bistability in Tm-doped laser-related crystals

Mikhail A. Noginov, Martina Vondrova, Daniel Casimir

We predict and theoretically study intrinsic optical bistability (IOB) mediated by nonlinear energy transfer processes in rare-earth-doped laser-related crystals. In particular, we investigate Tm-Ho and Tm-Yb systems, in which avalanche pumping is overimposed by energy transfer up-conversion. We predict that IOB can be experimentally observed in $(\mathrm{T}\mathrm{m},\mathrm{Y}\mathrm{b}):{\mathrm{BaY}}_{2}{\mathrm{F}}_{8}$ crystals in a wide range of experimentally achievable parameters.

Physical review. B, Condensed matter•Nov 25, 2003•14 citations

Intrinsic Bistability and Critical Slowing in Tm3+/Yb3+Codoped Laser Crystal with the Photon Avalanche Mechanism

Li Li, Zhang Xin-Lu, Lixue Chen

We present theoretically a novel intrinsic optical bistability (IOB) in the Tm 3+ /Yb 3+ codoped system with a photon avalanche mechanism. Numerical simulations based on the rate equation model demonstrate distinct IOB hysteresis and critical slowing dynamics around the avalanche thresholds. Such an IOB characteristic in Tm 3+ /Yb 3+ codoped crystal has potential applications in solid-state bistable optical displays and luminescence switchers in visible-infrared spectra.

Chinese Physics Letters•Jun 1, 2009•7 citations

Characteristics of intrinsic optical bistability and parameter optimization in Tm3+/Yb3+ codoped laser crystal

Li Li, Zhang Xin-Lu, Cui Jin-Hui +2 more

Intrinsic optical bistability （IOB） in Tm3+/Yb3+ codoped laser crystal under 650 nm laser excitation is theoretically studied. Based on the theory of nonlinear coupled rate equations, we numerically analyze IOB evolutions of the populations at Tm3+/Yb3+ energy levels, and the influence of system parameters on IOB and the dynamic operation of bistable hysteresis loop. The simulation result shows the fluorescence IOB in visible-infrared spectra of Tm3+/Yb3+ codoped laser crystal under photon avalanche pumping scheme. It is found that IOB phenomena can be largely enhanced by optimizing the Tm3+/Yb3+ concentration ratio, choosing low phonon-energy crystal host and using crystal cooling technology, and also by tuning the pump laser to match the resonant frequency of Tm3+ excited-state absorption transition. Through tuning the pump laser wavelength and adjusting the rate of change in pump intensity, the controllable IOB switching can be achieved.

Acta Physica Sinica•Jan 1, 2010•0 citations

Analysis of intrinsic optical bistability in Tm: YSGG laser crystal pumped under avalanche excitation at around 1um

WU Li-hua, Yu Chung Huang

Intrinsic optical bistability (IOB) in Tm: YSGG (yttrium-scandium-gallium garnet) laser crystal pumped at 1um avalanche wavelength is predicted theoretically and studied numerically. The nonlinear rate equations of Tm: YSGG are given based on the nonlinear energy transfer processes. From the rate equations, the analytical formula of avalanche threshold condition is deduced in the steady-state approximation. Both the intrinsic bistability effect of population concentrations at Tm3+ levels versus pumping power and the influence of system parameters on IOB avalanche threshold are studied numerically. The results show that the avalanche threshold power of IOB can be changed by adjusting experimentally adjustable parameters such as the Tm3+ −dope concentration.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•Mar 4, 2013•0 citations

Study on intrinsic optical bistability in Tm-doped laser crystal pumped at 648nm avalanche wavelength

Li Li, Zhang Xin-Lu, Lixue Chen +1 more

Intrinsic optical bistability (IOB) in Tm-doped laser crystal pumped at 648nm avalanche wavelength is predicted theoretically and studied numerically. Based on the theory of nonlinear rate equations, the analytical formula of avalanche threshold condition is deduced in the steady-state approximation. Transient response of photon avalanche, IOB and influence of system parameters on IOB are studied numerically. The numerical simulation shows that IOB of 2μm fluorescence emission in Tm-doped laser crystal can be experimentally observed. Controllable bistable hysteresis loop can be achieved by adjusting experimentally adjustable parameters.

Acta Physica Sinica•Jan 1, 2008•2 citations
We predict and theoretically study intrinsic optical bistability (IOB) mediated by nonlinear energy transfer processes in rare-earth-doped laser-related crystals. In particular, we investigate Tm-Ho and Tm-Yb systems, in which avalanche pumping is overimposed by energy transfer up-conversion. We predict that IOB can be experimentally observed in (Tm,Yb):BaY2F8(\mathrm{T}\mathrm{m},\mathrm{Y}\mathrm{b}):{\mathrm{BaY}}_{2}{\mathrm{F}}_{8}(Tm,Yb):BaY2​F8​ crystals in a wide range of experimentally achievable parameters.
Intrinsic optical bistability （IOB） in Tm3+/Yb3+ codoped laser crystal under 650 nm laser excitation is theoretically studied. Based on the theory of nonlinear coupled rate equations, we numerically analyze IOB evolutions of the populations at Tm3+/Yb3+ energy levels, and the influence of system parameters on IOB and the dynamic operation of bistable hysteresis loop. The simulation result shows the fluorescence IOB in visible-infrared spectra of Tm3+/Yb3+ codoped laser crystal under photon avalanche pumping scheme. It is found that IOB phenomena can be largely enhanced by optimizing the Tm3+/Yb3+ concentration ratio, choosing low phonon-energy crystal host and using crystal cooling technology, and also by tuning the pump laser to match the resonant frequency of Tm3+ excited-state absorption transition. Through tuning the pump laser wavelength and adjusting the rate of change in pump intensity, the controllable IOB switching can be achieved.
Intrinsic optical bistability (IOB) in Tm: YSGG (yttrium-scandium-gallium garnet) laser crystal pumped at 1um avalanche wavelength is predicted theoretically and studied numerically. The nonlinear rate equations of Tm: YSGG are given based on the nonlinear energy transfer processes. From the rate equations, the analytical formula of avalanche threshold condition is deduced in the steady-state approximation. Both the intrinsic bistability effect of population concentrations at Tm3+ levels versus pumping power and the influence of system parameters on IOB avalanche threshold are studied numerically. The results show that the avalanche threshold power of IOB can be changed by adjusting experimentally adjustable parameters such as the Tm3+ −dope concentration.
Intrinsic optical bistability (IOB) in Tm-doped laser crystal pumped at 648nm avalanche wavelength is predicted theoretically and studied numerically. Based on the theory of nonlinear rate equations, the analytical formula of avalanche threshold condition is deduced in the steady-state approximation. Transient response of photon avalanche, IOB and influence of system parameters on IOB are studied numerically. The numerical simulation shows that IOB of 2μm fluorescence emission in Tm-doped laser crystal can be experimentally observed. Controllable bistable hysteresis loop can be achieved by adjusting experimentally adjustable parameters.