Thermally induced dephasing in periodically poled KTP frequency-doubling crystals

被引：38

作者：

Liao, ZM

Payne, SA

Dawson, J

Drobshoff, A

Ebbers, C

Pennington, D

Taylor, L

机构：

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

[2] European So Observ, D-85748 Garching, Germany

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2004年 / 21卷 / 12期

关键词：

D O I：

10.1364/JOSAB.21.002191

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A thermally induced spatial and temporal dephasing model of second-harmonic generation has been developed to describe the conversion efficiency and its degradation of periodically poled potassium titanium phosphate (PPKTP) in a cw, single-pass frequency conversion system. The model confirms the experimental data that show that second-harmonic power greater than 800 mW (15 kW/cm(2)) causes two-photon nonlinear absorption, leading to time-dependent photochromic damage in PPKTP. This added absorption degrades the conversion efficiency from an initial value of 19% to an unrecoverable asymptotic value of similar to8% in 2 h at 145 kW/cm(2) of pump intensity through thermal detuning phase mismatch. (C) 2004 Optical Society of America.

引用

页码：2191 / 2196

页数：6

共 23 条

[1] UV and visible absorption in LiTaO3 [J].

Alexandrovski, AL ;

Foulon, G ;

Myers, LE ;

Route, RK ;

Fejer, MM .

LASER MATERIAL CRYSTAL GROWTH AND NONLINEAR MATERIALS AND DEVICES, 1999, 3610 :44-51

[2] Green and ultraviolet quasi-phase-matched second harmonic generation in bulk periodically-poled KTiOPO4 [J].

Arie, A ;

Rosenman, G ;

Mahal, V ;

Skliar, A ;

Oron, M ;

Katz, M ;

Eger, D .

OPTICS COMMUNICATIONS, 1997, 142 (4-6) :265-268

[3] INTERACTIONS BETWEEN LIGHT WAVES IN A NONLINEAR DIELECTRIC [J].

ARMSTRONG, JA ;

BLOEMBERGEN, N ;

DUCUING, J ;

PERSHAN, PS .

PHYSICAL REVIEW, 1962, 127 (06) :1918-+

[4] Ce:LiSrAlF6 laser performance with antisolarant pump beam [J].

Bayramian, AJ ;

Marshall, CD ;

Wu, JH ;

Speth, JA ;

Payne, SA ;

Quarles, GJ ;

Castillo, VK .

JOURNAL OF LUMINESCENCE, 1996, 69 (02) :85-94

[5] Thermo-optical effect and saturation of nonlinear absorption induced by gray tracking in a 532-nm-pumped KTP optical parametric oscillator [J].

Boulanger, B ;

Fève, JP ;

Guillien, Y .

OPTICS LETTERS, 2000, 25 (07) :484-486

[6] Optical studies of laser-induced gray-tracking in KTP [J].

Boulanger, B ;

Rousseau, I ;

Fève, JP ;

Maglione, M ;

Ménaert, B ;

Marnier, G .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1999, 35 (03) :281-286

[7] PARAMETRIC INTERACTION OF FOCUSED GAUSSIAN LIGHT BEAMS [J].

BOYD, GD ;

KLEINMAN, DA .

JOURNAL OF APPLIED PHYSICS, 1968, 39 (08) :3597-+

[8]

Boyd R. W., 2003, NONLINEAR OPTICS

[9]

CHEN G, 1994, ACTA ONCOL SINICA, V4, P30

[10] Second-harmonic generation in periodically poled GaN [J].

Chowdhury, A ;

Ng, HM ;

Bhardwaj, M ;

Weimann, NG .

APPLIED PHYSICS LETTERS, 2003, 83 (06) :1077-1079

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