Gain distribution in the volume of a solid-state active element of a diode-pumped high-power laser

被引：0

作者：

Gushchik, T. I. ^{[1
]}

Drakin, A. E. ^{[1
]}

D'yachkov, N. V. ^{[1
]}

Romanov, V. V. ^{[2
]}

机构：

[1] Russian Acad Sci, PN Lebedev Phys Inst, Leninsky Prosp 53, Moscow 119991, Russia

[2] All Russian Res Inst Expt Phys, Russian Fed Nucl Ctr, Prosp Mira 37, Nizhnii Novgorod 607188, Russia

来源：

QUANTUM ELECTRONICS | 2017年 / 47卷 / 07期

关键词：

solid-state laser active element; diode pumping; control of gain profile; REFRACTIVE-INDEX; EFFICIENCY;

D O I：

10.1070/QEL16370

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：

We propose a technique for calculating the spatial gain profile in the volume of a solid active element of a high-energy laser pumped by laser diode arrays, which takes into account the properties of the radiation pattern of semiconductor lasers. This technique is employed to calculate the profile of the gain in a neodymium glass active element. By the example of a rod of rectangular section 4.5 by 4.5 by 25 cm we show that, by varying the pump system parameters, it is possible to define the profile of the gain: for instance, a profile uniform over the cross section (with its nonuniformity under 2.5 %), with a peak at the centre or in peripheral regions, with a specific energy deposition of similar to 1 J cm(-3).

引用

页码：620 / 626

页数：7