ZnGeP2 parametric oscillator pumped by a linewidth-narrowed parametric 2 μm source
2006 (English)In: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 31, 1878-1880 p.Article in journal (Refereed) Published
A tandem optical parametric oscillator (OPO) is used to convert radiation from 1.064 μm to the mid-infrared. Spectral bandwidth narrowing close to 80 times compared with a conventional cavity was achieved by using a bulk Bragg grating as an outcoupler in a near-degenerate periodically poled KTiOPO4 OPO. The narrowed 2008 nm radiation was subsequently used for pumping the ZnGeP2 OPO, which was tunable between 3.3 and 5.2 μm. Pulse energies of 170 μJ and pump depletion close to 70% were obtained in the ZnGeP2 OPO. To our knowledge this is the first time the output from a near-degenerate type I PPKTP OPO has been used for ZnGeP2 OPO pumping.
Place, publisher, year, edition, pages
2006. Vol. 31, 1878-1880 p.
Volume gratings ; Infrared and far-infrared lasers; Nonlinear optics, devices; Parametric oscillators and amplifiers
IdentifiersURN: urn:nbn:se:kth:diva-12859DOI: 10.1364/OL.31.001878ISI: 000238156800034ScopusID: 2-s2.0-33745880111OAI: oai:DiVA.org:kth-12859DiVA: diva2:319360
QC 1005172010-05-172010-05-172015-03-30Bibliographically approved