Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Thermally induced dephasing in periodically poled KTP frequency-doubling crystals

Not Accessible

Your library or personal account may give you access

Abstract

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/cm2) 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 ∼8% in 2 h at 145 kW/cm2 of pump intensity through thermal detuning phase mismatch.

© 2004 Optical Society of America

Full Article  |  PDF Article
More Like This
Efficient Nd:YAG laser frequency doubling with periodically poled KTP

Valdas Pasiskevicius, Shunhua Wang, Jens A. Tellefsen, Fredrik Laurell, and Håkan Karlsson
Appl. Opt. 37(30) 7116-7119 (1998)

Room-temperature, continuous-wave 1-W green power by single-pass frequency doubling in a bulk periodically poled MgO:LiNbO3 crystal

N. Pavel, I. Shoji, T. Taira, K. Mizuuchi, A. Morikawa, T. Sugita, and K. Yamamoto
Opt. Lett. 29(8) 830-832 (2004)

Efficient doubling of femtosecond pulses in aperiodically and periodically poled KTP crystals

A. A. Lagatsky, C. T. A. Brown, W. Sibbett, S. J. Holmgren, C. Canalias, V. Pasiskevicius, F. Laurell, and E. U. Rafailov
Opt. Express 15(3) 1155-1160 (2007)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (7)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved