Zobrazeno 1 - 7
of 7
pro vyhledávání: '"O. P. Shaunin"'
Publikováno v:
Quantum Electronics. 27:356-359
A study was made of the spectral dependence of the laser-induced absorption in a crystal of potassium titanyl phosphate KTiOPO4 (KTP). The nonlinear absorption coefficients were determined for KTP crystals differing in respect of quality. It was foun
Publikováno v:
Quantum Electronics. 23:694-696
The optically induced (photorefractive) changes in the refractive indices of a crystal have been studied and measured. The influence of these changes on the characteristics of KTP-based frequency doublers is discussed.
Autor:
V A Mikhaĭlov, Ivan A Shcherbakov, G I D'yakonov, D. A. Nikolaev, V G Lyan, B. V. Andreev, V. A. Maslov, S. K. Pak, O. P. Shaunin
Publikováno v:
Soviet Journal of Quantum Electronics. 21:941-943
Efficiencies of ~ 1.5–2% were achieved in YSGG:Cr:Nd lasers utilizing resonators insensitive to thermal birefringence in the active element under conditions of frequency doubling in a KTP crystal. The pulse output energies were 400 (240) mJ and the
Publikováno v:
1994 Conference on Lasers and Electro-Optics Europe.
The colour centres responsible for the additional laser-induced absorption (“gray tracking") appear in KTP crystals under the action of the blue-green laser radiation. This effect significantly limits the application of KTP frequency doublers. The
Autor:
Ivan Alexandrov Shcherbakov, V G Lyan, S. I. Khomenko, B. A. Mikhailov, D. A. Nikolaev, O. P. Shaunin, S. K. Pak
Publikováno v:
SPIE Proceedings.
Two types of YSGG:Cr, Nd-lasers were investigated. The use of an opto-mechanical modulator in one of them and of a polarization-closed cavity in the other made it possible to achieve the efficiency of 3 - 4% with the output energy up to 460 mJ and th
Autor:
B. A. Mikhailov, B. V. Andreev, Ivan Alexandrov Shcherbakov, S. K. Pak, O. P. Shaunin, Vyacheslav A. Maslov
Publikováno v:
SPIE Proceedings.
We present the results of the experimental study of laser-induced absorption (LIA) in KTiOPO 4 crystal (KTP) under the action of laser radiation of wavelengths 0.37 - 0.44, 0.53, and 0.68 - 0.88 micrometers . New data are obtained on the nature of th
Publikováno v:
Advanced Solid State Lasers.
The results of the investigations of a frequency doubled Cr:Nd:YSGG laser containing KTP crystal as a frequency doubler are presented. The efficiency about 1% at output energy of SHG pulses of ~0.125 and pulse repetition rate of 50Hz have been reache