WO2008052161A3 - Saturable absorbers for q-switching of middle infrared laser cavities - Google Patents

Saturable absorbers for q-switching of middle infrared laser cavities Download PDF

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Publication number
WO2008052161A3
WO2008052161A3 PCT/US2007/082662 US2007082662W WO2008052161A3 WO 2008052161 A3 WO2008052161 A3 WO 2008052161A3 US 2007082662 W US2007082662 W US 2007082662W WO 2008052161 A3 WO2008052161 A3 WO 2008052161A3
Authority
WO
WIPO (PCT)
Prior art keywords
znse
switching
infrared laser
middle infrared
switched output
Prior art date
Application number
PCT/US2007/082662
Other languages
French (fr)
Other versions
WO2008052161A2 (en
Inventor
Sergey Mirov
Andrew Gallian
Alan Martinez
Vlasimir Fedorov
Original Assignee
Univ Alabama Res Found
Sergey Mirov
Andrew Gallian
Alan Martinez
Vlasimir Fedorov
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Alabama Res Found, Sergey Mirov, Andrew Gallian, Alan Martinez, Vlasimir Fedorov filed Critical Univ Alabama Res Found
Publication of WO2008052161A2 publication Critical patent/WO2008052161A2/en
Publication of WO2008052161A3 publication Critical patent/WO2008052161A3/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
    • H01S3/1123—Q-switching
    • H01S3/113—Q-switching using intracavity saturable absorbers

Abstract

This disclosure demonstrates successfully using single, polycrystalline, hot pressed ceramic, and thin film Fe doped binary chalcogenides (such as ZnSe and ZnS) as saturable absorbing passive Q-switches. The method of producing polycrystalline ZnSe(S) yields fairly uniform distribution of dopant, large coefficients of absorption (5-50 cm-1) and low passive losses while being highly cost effective and easy to reproduce. Using these Fe2+:ZnSe crystals, stable Q-switched output was achieved with a low threshold and the best cavity configuration yielded 13mJ/pulse single mode Q-switched output and 85 mJ in a multipulse regime.
PCT/US2007/082662 2006-10-27 2007-10-26 Saturable absorbers for q-switching of middle infrared laser cavities WO2008052161A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US86326806P 2006-10-27 2006-10-27
US60/863,268 2006-10-27

Publications (2)

Publication Number Publication Date
WO2008052161A2 WO2008052161A2 (en) 2008-05-02
WO2008052161A3 true WO2008052161A3 (en) 2008-08-14

Family

ID=39325461

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/082662 WO2008052161A2 (en) 2006-10-27 2007-10-26 Saturable absorbers for q-switching of middle infrared laser cavities

Country Status (1)

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WO (1) WO2008052161A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8817830B2 (en) * 2002-09-19 2014-08-26 The Uab Research Foundation Saturable absorbers for Q-switching of middle infrared laser cavaties
CN103275723B (en) * 2013-05-30 2015-09-16 中国科学院上海光学精密机械研究所 Ferrochrome ion is two mixes composite selenium zinc sulphide laserable material and preparation method thereof
US10148058B1 (en) * 2016-02-23 2018-12-04 Leidos, Inc. Emission conversion amplifier for solid state lasers

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4944900A (en) * 1983-03-16 1990-07-31 Raytheon Company Polycrystalline zinc sulfide and zinc selenide articles having improved optical quality
US20030072340A1 (en) * 2001-09-20 2003-04-17 Mirov Sergey B. Mid-ir microchip laser: ZnS:Cr2+ laser with saturable absorber material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4944900A (en) * 1983-03-16 1990-07-31 Raytheon Company Polycrystalline zinc sulfide and zinc selenide articles having improved optical quality
US20030072340A1 (en) * 2001-09-20 2003-04-17 Mirov Sergey B. Mid-ir microchip laser: ZnS:Cr2+ laser with saturable absorber material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KISEL ET AL.: "Saturable absorbers for passive Q-switching of erbium lasers emitting in the region of 3 mum", JOURNAL OF APPLIED SPECTROSCOPY, vol. 72, no. 6, November 2005 (2005-11-01), XP019221466 *

Also Published As

Publication number Publication date
WO2008052161A2 (en) 2008-05-02

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