Basic enhancement of the global efficiency of frequency doubling devices for the one-micron continuous-wave Nd:YAG laser emission

被引：0
作者：
Lupei, V [1 ]
Pavel, N [1 ]
Taira, T [1 ]
机构：
[1] Inst Atom Phys, Solid State Quantum Elect Lab, R-76900 Bucharest, Romania
来源：
ROMOPTO 2003: SEVENTH CONFERENCE ON OPTICS | 2004年 / 5581卷
关键词：
frequency doubling; green laser emission; Nd : YAG laser;
D O I：
10.1117/12.582813
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The possibility of basic enhancement of the global efficiency of frequency-doubling devices for the one-micron continuous-wave Nd lasers by direct pumping into the emitting level and by the use of concentrated laser materials is discussed. This possibility is demonstrated for 1.0 and 2.4-at.% Nd:YAG crystals pumped by a Ti:Sapphire laser at 885 nm. A slope efficiency of 0.79 in absorbed power was obtained for the 1064 nm emission of the 1-at.% Nd:YAG. The effect of enhancement of intracavity emission on the second harmonic emission is manifested in a drastically reduction of emission threshold and in an enhanced dependence on the absorbed power. The use of concentrated Nd:YAG crystals enables a better use of the pump power and increases the overall efficiency of the frequency-doubling devices.
引用
收藏
页码：232 / 237
页数：6
相关论文
共 15 条
[1]   FABRICATION AND OPTICAL-PROPERTIES OF HIGH-PERFORMANCE POLYCRYSTALLINE ND-YAG CERAMICS FOR SOLID-STATE LASERS [J].
IKESUE, A ;
KINOSHITA, T ;
KAMATA, K ;
YOSHIDA, K .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1995, 78 (04) :1033-1040
[2]  
KELLNER T, 1999, C NOV LAS DEV MUN
[3]   Thermally boosted pumping of neodymium lasers [J].
Lavi, R ;
Jackel, S .
APPLIED OPTICS, 2000, 39 (18) :3093-3098
[4]   Efficient pumping scheme for neodymium-doped materials by direct excitation of the upper lasing level [J].
Lavi, R ;
Jackel, S ;
Tzuk, Y ;
Winik, M ;
Lebiush, E ;
Katz, M ;
Paiss, I .
APPLIED OPTICS, 1999, 38 (36) :7382-7385
[5]   Efficient laser emission in concentrated Nd laser materials under pumping into the emitting level [J].
Lupei, V ;
Pavel, N ;
Taira, T .
IEEE JOURNAL OF QUANTUM ELECTRONICS, 2002, 38 (03) :240-245
[6]   Highly efficient laser emission in concentrated Nd:YVO4 components under direct pumping into the emitting level [J].
Lupei, V ;
Pavel, N ;
Taira, T .
OPTICS COMMUNICATIONS, 2002, 201 (4-6) :431-435
[7]   Enhanced fundamental and self-frequency-doubling laser emission efficiency in 4F3/2 directly pumped Nd-activated nonlinear crystals:: The case of GdCa4O(BO3)3 [J].
Lupei, V ;
Aka, G ;
Vivien, D .
APPLIED PHYSICS LETTERS, 2002, 81 (05) :811-813
[8]   Spectroscopy and laser emission under hot band resonant pump in highly doped Nd:YAG ceramics [J].
Lupei, V ;
Taira, T ;
Lupei, A ;
Pavel, N ;
Shoji, I ;
Ikesue, A .
OPTICS COMMUNICATIONS, 2001, 195 (1-4) :225-232
[9]   The effect of Nd concentration on the spectroscopic and emission decay properties of highly doped Nd:YAG ceramics -: art. no. 092102 [J].
Lupei, V ;
Lupei, A ;
Georgescu, S ;
Taira, T ;
Sato, Y ;
Ikesue, A .
PHYSICAL REVIEW B, 2001, 64 (09)
[10]   Laser emission in highly doped Nd:YAG crystals under 4F5/2 and 4F3/2 pumping [J].
Lupei, V ;
Pavel, N ;
Taira, T .
OPTICS LETTERS, 2001, 26 (21) :1678-1680
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