Two-dimensional quasi-phase-matched multiplecascaded four-wave mixing in periodically poled KTiOPO
2006 (English)In: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 31, no 22, 3324-3326 p.Article in journal (Refereed) Published
A two-dimensional quasi-phase-matched structure is realized in a noncollinear, nondegenerate periodically poled KTiOPO4 parametric oscillator by utilizing the mutual coherence of two noncollinear pump beams. The mutually coherent pump beams form an interference pattern inside the crystal that is directed perpendicular to the existing quasi-phase-matched grating vector and acts as a parametric gain grating. The cavity itself supports two signal wavelengths around 1550 nm with tunable separation, while the gain grating reduces the operational threshold of the oscillator. Furthermore, with this two-dimensional quasi-phasematched structure, we can demonstrate the generation of new spectral components through multiple chi((2)) : chi((2))-caseaded four-wave mixing processes.
Place, publisher, year, edition, pages
2006. Vol. 31, no 22, 3324-3326 p.
optical parametric oscillator, nonlinear photonic crystal, amplifier
Other Physics Topics
IdentifiersURN: urn:nbn:se:kth:diva-5900DOI: 10.1364/OL.31.003324ISI: 000241799700035ScopusID: 2-s2.0-33845533036OAI: oai:DiVA.org:kth-5900DiVA: diva2:10430
Uppdaterad från submitted till published: 20100923.
QC 201009232006-06-012006-06-012011-10-03Bibliographically approved