Optical pulse compression using cascaded quadratic nonlinearities in periodically poled lithium niobate

Ashihara, Satoshi; Shimura, Tsutomu; Kuroda, Kazuo; Nan Ei Yu, Kazuo; Kurimura, Sunao; Kitamura, Kenji; Myoungsik Cha; Taira, Takunori
February 2004
Applied Physics Letters;2/16/2004, Vol. 84 Issue 7, p1055
Academic Journal
Efficient pulse compression was achieved by the use of cascaded quadratic nonlinearities in 10-mm-long periodically poled MgO-doped lithium niobate. An off-diagonal component of the nonlinear coefficient was utilized for group-velocity matched cascaded interactions at the fundamental wavelength of 1560 nm. Simultaneously compressed fundamental and second-harmonic pulses of ∼35 fs duration were obtained from the 110-fs-pump pulses. © 2004 American Institute of Physics.


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