Slope efficiency of a pulsed 2.8-µm Er3+:LiYF4 laser

R. Spring; M. Pollnau; S. Wittwer; W. Lüthy; H.P. Weber

Slope efficiency of a pulsed 2.8-µm Er³⁺:LiYF₄ laser

R. Spring, M. Pollnau, S. Wittwer, W. Lüthy, H.P. Weber

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Abstract

A 40 % slope efficiency from a pulsed Er3+:LiYF4 is demonstrated under cw Timpphire pumping. This value clearly exceeds the Stokes limit of 35% due to energy recycling fiom lower to upper laser level. With reduction of the pump-pulse duration a decrease of the slope efficiency and an increase of the threshold is experimentally observed and confirmed by a computer simulation. An approximate function following an exponential law can be used to describe the dependence of the slope efficiency on the pump-pulse duration.

Original language	English
Pages	309-311
Number of pages	3
Publication status	Published - Jan 1996
Event	Advanced Solid State Lasers, ASSL 1996 - San Francisco, United States Duration: 31 Jan 1996 → 2 Feb 1996

Conference

Conference	Advanced Solid State Lasers, ASSL 1996
Abbreviated title	ASSL
Country/Territory	United States
City	San Francisco
Period	31/01/96 → 2/02/96

Keywords

IOMS-APD: Active Photonic Devices
IR-71680
EWI-17961

Access to Document

Spring_1996_slopeFinal published version, 213 KB

Cite this

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title = "Slope efficiency of a pulsed 2.8-µm Er3+:LiYF4 laser",

abstract = "A 40 % slope efficiency from a pulsed Er3+:LiYF4 is demonstrated under cw Timpphire pumping. This value clearly exceeds the Stokes limit of 35% due to energy recycling fiom lower to upper laser level. With reduction of the pump-pulse duration a decrease of the slope efficiency and an increase of the threshold is experimentally observed and confirmed by a computer simulation. An approximate function following an exponential law can be used to describe the dependence of the slope efficiency on the pump-pulse duration.",

keywords = "IOMS-APD: Active Photonic Devices, IR-71680, EWI-17961",

author = "R. Spring and M. Pollnau and S. Wittwer and W. L{\"u}thy and H.P. Weber",

year = "1996",

month = jan,

language = "English",

pages = "309--311",

note = "Advanced Solid State Lasers, ASSL 1996, ASSL ; Conference date: 31-01-1996 Through 02-02-1996",

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TY - CONF

T1 - Slope efficiency of a pulsed 2.8-µm Er3+:LiYF4 laser

AU - Spring, R.

AU - Pollnau, M.

AU - Wittwer, S.

AU - Lüthy, W.

AU - Weber, H.P.

PY - 1996/1

Y1 - 1996/1

N2 - A 40 % slope efficiency from a pulsed Er3+:LiYF4 is demonstrated under cw Timpphire pumping. This value clearly exceeds the Stokes limit of 35% due to energy recycling fiom lower to upper laser level. With reduction of the pump-pulse duration a decrease of the slope efficiency and an increase of the threshold is experimentally observed and confirmed by a computer simulation. An approximate function following an exponential law can be used to describe the dependence of the slope efficiency on the pump-pulse duration.

AB - A 40 % slope efficiency from a pulsed Er3+:LiYF4 is demonstrated under cw Timpphire pumping. This value clearly exceeds the Stokes limit of 35% due to energy recycling fiom lower to upper laser level. With reduction of the pump-pulse duration a decrease of the slope efficiency and an increase of the threshold is experimentally observed and confirmed by a computer simulation. An approximate function following an exponential law can be used to describe the dependence of the slope efficiency on the pump-pulse duration.

KW - IOMS-APD: Active Photonic Devices

KW - IR-71680

KW - EWI-17961

M3 - Paper

SP - 309

EP - 311

T2 - Advanced Solid State Lasers, ASSL 1996

Y2 - 31 January 1996 through 2 February 1996

ER -