Abstract
Second-harmonic generation (SHG) in the limit of large phase mismatch, given by Deltabeta=beta2-2beta1 effectively induces a Kerr-like nonlinear phase shift on the fundamental wave (FW). The phase mismatch determines the sign and magnitude of the effective Kerr nonlinearity, making large negative phase shifts accessible. This self-defocusing nonlinearity can be used to compress a pulse when combined with normal dispersion, and problems normally encountered due to self-focusing in cubic media are avoided. Thus, having no power limit, in bulk media a self-defocusing soliton compressor can create high-energy near single-cycle fs pulses (Liu et al., 2006). However, the group-velocity mismatch (GVM) between the FW and second harmonic (SH), given by the inverse group velocity difference d12=1/Vg,1 - 1/Vg,2, limits the pulse quality and compression ratio. Especially very short input pulses (
Original language | English |
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Title of host publication | European Conference on Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. |
Number of pages | 639 |
Publisher | IEEE |
Publication date | 2007 |
Pages | CJ1-3-WED |
ISBN (Print) | 978-1-4244-0931-0 |
DOIs | |
Publication status | Published - 2007 |
Event | Conference on Lasers and Electro-Optics and International Quantum Electronics Conference 2007 - Munich, Germany Duration: 17 Jun 2007 → 22 Jun 2007 http://2007.cleoeurope.org/ |
Conference
Conference | Conference on Lasers and Electro-Optics and International Quantum Electronics Conference 2007 |
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Country/Territory | Germany |
City | Munich |
Period | 17/06/2007 → 22/06/2007 |
Internet address |