Phase matching characteristics of second-harmonic generation in periodic 90 degrees-Domain structures of KNbO3

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Phase matching characteristics of second-harmonic generation (SHG) in periodic 90 degrees-domain structures of KNbO3 single crystal were extensively analyzed. Important parameters including types of interaction and the corresponding effective nonlinear optical coefficients, grating periods for quasi-phase matching (QPM), spectral bandwidths, and group velocity mismatches were estimated. The results show that KNbO3 with a specific internal structure of periodic 90 degrees-domains can be used for efficient narrowband second-harmonic generation and group-velocity-matched broadband optical frequency doubling near the optical communication window.
Publisher
INST PURE APPLIED PHYSICS
Issue Date
2007-11
Language
English
Article Type
Article
Keywords

POLED POTASSIUM NIOBATE; SINGLE-CRYSTALS; FERROELECTRIC DOMAINS; FABRICATION; CONVERSION

Citation

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, v.46, no.11, pp.7317 - 7320

ISSN
0021-4922
DOI
10.1143/JJAP.46.7317
URI
http://hdl.handle.net/10203/89872
Appears in Collection
PH-Journal Papers(저널논문)
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