Active and passive hybrid mode-locking of a Nd:YVO4 laser with a single partially poled KTP crystal
2006 (English)In: Optics express, ISSN 1094-4087, Vol. 14, no 15, 6675-6680 p.Article in journal (Refereed) Published
We report on a Nd:YVO4 laser mode-locked with a hybrid active and passive modulator consisting of a single partially poled KTP crystal. The periodically poled part provides negative cascaded Kerr-lensing, which together with intracavity soft and hard apertures gives passive modulation. Active phase modulation comes from the electro-optic effect by applying a voltage over the unpoled part of the crystal. The active modulation provides pulse lengths of about 95 ps, which initiate pulse shortening and self-sustained passive mode-locking by the cascaded Kerr effect. The repetition rate of the laser was 94 MHz and the output power was 350 mW, with a bandwidth of 0.235 nm and pulse lengths down to 6.9 ps.
Place, publisher, year, edition, pages
2006. Vol. 14, no 15, 6675-6680 p.
2.8 ps pulses, 2nd-order nonlinearities, yvo4 laser, locked nd, mirror
Atom and Molecular Physics and Optics
IdentifiersURN: urn:nbn:se:kth:diva-6626ISI: 000239342300011ScopusID: 2-s2.0-33746379038OAI: oai:DiVA.org:kth-6626DiVA: diva2:11385
QC 201008302006-12-152006-12-152015-03-30Bibliographically approved