Wavelength shifting and amplification of optical pulses through cascaded second-order processes in periodically poled lithium niobate

被引:74
作者
Banfi, GP
Datta, PK
Degiorgio, V
Fortusini, D
机构
[1] INFM, I-27100 Pavia, Italy
[2] Univ Pavia, Dipartimento Elettron, I-27100 Pavia, Italy
关键词
D O I
10.1063/1.121734
中图分类号
O59 [应用物理学];
学科分类号
摘要
We investigate the efficiency of wavelength shifting (generation of a pulse at the wavelength lambda(p) -Delta lambda from a signal at lambda(p)+Delta lambda under the action of a pump at lambda(p)) and parametric amplification through a cascaded second-order process in a periodically poled lithium niobate crystal. Our results show that, in a 19-mm-long sample, at lambda(p) = 1.8 mu m and Delta lambda as large as 60 nm, wavelength shifting with unit gain can be obtained with a pump intensity of 6 MW/cm(2), while amplification by a factor 10 requires 18 MW/cm(2). (C) 1998 American Institute of Physics.
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页码:136 / 138
页数:3
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