Abstract
Passively Q-switched operation of Yb,Tm:KY(WO4)2 and Tm:KY(WO4)2 lasers diode pumped at 805 nm has been investigated. A thin plate of Cr:ZnS was used as a saturable absorber for passive Q switching. A maximum average output power of 116 mW emitted at 1.9 μm in comparison to 160 mW for the free-running regime at the same pumping level has been obtained with a slope efficiency of 26% with respect to the incident pump power. Using a Tm:KYW sample with broadband antireflection coatings and dichroic laser resonator mirror, the first Stokes component of Raman self-frequency conversion was observed at 2365 nm.
| Original language | English |
|---|---|
| Pages (from-to) | 2926-2928 |
| Number of pages | 3 |
| Journal | Applied Physics Letters |
| Volume | 81 |
| Issue number | 16 |
| DOIs | |
| State | Published - Oct 14 2002 |
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