A wide temperature range miniaturization eye-safe laser - Details

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Abstract：

A　miniaturized,　eye-safe　laser　with　wide　adaptive　temperature　is　reported.　Er3+,　Yb3+　co-doped　phosphate　glass　is　used　as　the　gain　medium.　A　Co2+:　MgAl2O4　crystal　is　used　as　the　saturable　absorber.　The　miniaturized　laser　structure　suitable　for　wide　temperature　range　and　the　output　characteristics　of　the　passively　Q-switched　laser　are　investigated.　The　pump　energy　of　9　mJ,　repetition　frequency　of　10　Hz,　pump　duration　of　5　ms,　pulse　energy　of　130　μJ,　pulse　duration　of　5.5　ns,　peak　power　of　20　kW,　and　beam　quality　M2of　1.3　were　obtained.　The　laser　structure　uses　vacuum　packaging　and　can　run　stably　in　the　temperature　range　of　-40　to　50.　The　output　instability　is　less　than　5%　by　natural　cooling.　The　laser　can　also　be　driven　by　lithium　batteries　for　further　application.　©,　2015,　Editorial　Office　of　High　Power　Laser　and　Particle　Beams.　All　right　reserved.

Keyword：

Optical pumping Lithium batteries Cobalt Q switched lasers Q switching Saturable absorbers Miniature instruments

Author Community：

[ 1 ] [Guo, Meng]Institute of Laser Engineering, Beijing University of Technology, Beijing, China
[ 2 ] [Hui, Yongling]Institute of Laser Engineering, Beijing University of Technology, Beijing, China
[ 3 ] [Zhang, Yulu]Institute of Laser Engineering, Beijing University of Technology, Beijing, China
[ 4 ] [Jiang, Menghua]Institute of Laser Engineering, Beijing University of Technology, Beijing, China
[ 5 ] [Lei, Hong]Institute of Laser Engineering, Beijing University of Technology, Beijing, China
[ 6 ] [Li, Qiang]Institute of Laser Engineering, Beijing University of Technology, Beijing, China