High-average-power 1-μm performance and frequency conversion of a diode-end-pumped Yb:YAG laser

被引：85

作者：

Bibeau, C ^{[1
]}

Beach, RJ ^{[1
]}

Mitchell, SC ^{[1
]}

Emanuel, MA ^{[1
]}

Skidmore, J ^{[1
]}

Ebbers, CA ^{[1
]}

Sutton, SB ^{[1
]}

Jancaitis, KS ^{[1
]}

机构：

[1] Univ Calif Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

来源：

IEEE JOURNAL OF QUANTUM ELECTRONICS | 1998年 / 34卷 / 10期

关键词：

CW lasers; diodes; frequency conversion; lasers; Q-switched lasers; Yb : YAG; ytterbium;

D O I：

10.1109/3.720241

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Using a diode-end-pumped technology, a Yb:YAG laser capable of delivering up to 434 W of CW power has been demonstrated. The system incorporates a unique composite rod design which allows for high-average-power operation while simultaneously suppressing parasitic oscillations, Modeling and experimental data to support the quenching of parasitics are discussed. Beam quality measurements for CW operation with several cavity configurations are presented. In particular, beam quality measurements at 340-W CW yielded a beam quality factor of M-2 = 21. Predictions of a quasi-three-level model are compared with the experimental data for several output coupler reflectivities. An observed dependence of the cavity mode fill as a function of output coupler reflectivity is discussed. Employing a single acoustooptical switch, the system was Q-switched at 10 kHz and generated output powers up to 280 W with a measured beam quality of M-2 = 6.8 at 212 W. With an external dual-KTP crystal configuration, the Q-switched output was frequency converted to 515 nm and produced up to 76 W at 10 kHz in a 30-ns pulse length.

引用

页码：2010 / 2019

页数：10

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