Efficient nanosecond optical parametric oscillators based on periodically poled KTiOPO4, emitting in 1.8-2.5 µm spectral region
1999 (English)In: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 24, 1233-1235 p.Article in journal (Refereed) Published
The use of periodically poled KTiOPO4 as a gain medium in efficient nanosecond optical parametric oscillators pumped by a flash-lamp-pumped 𝑄‐switched Nd:YAG laser is demonstrated. Parametric radiation in the 1.8–2.5‐µm spectral region was achieved when the crystal temperature was tuned from 10 to 100 °C. A maximum total output energy of 1.8 mJ was obtained at a pump level of 3.5 mJ. Stable operation was achieved, with conversion efficiencies reaching 50%. No gray tracking or laser damage was observed, even for pump intensities of 450 MW/cm2.
Place, publisher, year, edition, pages
1999. Vol. 24, 1233-1235 p.
Atom and Molecular Physics and Optics
IdentifiersURN: urn:nbn:se:kth:diva-181717OAI: oai:DiVA.org:kth-181717DiVA: diva2:899931
FunderSwedish Research Council
NR 201602232016-02-022016-02-022016-02-23Bibliographically approved