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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Marshall, C.D. Payne, S.A. Smith, L.K. Schaffers, K.I. Orth, C. Beach, R. Powell, H.T. Krupke, W.F. Chai, B.H.T. |
| Copyright Year | 1994 |
| Description | Author affiliation: Lawrence Livermore Nat. Lab., CA, USA (Marshall, C.D.) |
| Abstract | The authors believe that Yb/sup 3+/-doped Sr/sub 5/(PO/sub 4/)/sub 3/F (Yb:S-FAP) is particularly well adapted for low to medium power laser applications that are sensitive to overall efficiencies. Yb:S-FAP has a relatively low pump saturation intensity of 2.0 kW/cm/sup 2/ which is well suited to diode pumping since the ground state can be readily bleached. This spatial bleach wave pumping is required for efficient operation of a quasi three level laser and is also well suited for efficient amplifier energy extraction. In contrast, Yb:YAG has a pump saturation intensity of 28 kW/cm/sup 2/, which is more difficult to exceed with commonly available diode arrays; although, Yb:YAG does offer significantly better thermal properties. Yb:fiber lasers use a different approach to the ground state bleaching issue by confining the pump field to the relatively small fiber core. Unfortunately, this approach is not readily scalable to large output energies. The remainder of the paper focuses on some recent experimental results obtained in the process of developing efficient diode pumped Yb:S-FAP laser systems capable of efficiently providing /spl sim/1 J at 1047 nm. |
| Starting Page | 417 |
| Ending Page | 418 |
| File Size | 233077 |
| Page Count | 2 |
| File Format | |
| ISBN | 0780314700 |
| DOI | 10.1109/LEOS.1994.586646 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1994-10-31 |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Pump lasers Diodes Bleaching Laser excitation Stationary state Semiconductor laser arrays Fiber lasers Strontium Laser applications Power lasers |
| Content Type | Text |
| Resource Type | Article |
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