Document Detail

Broadband and highly efficient quadratic interactions in double-slot lithium niobate waveguides through phase matching.
MedLine Citation:
PMID:  21725470     Owner:  NLM     Status:  In-Data-Review    
We propose and study in detail a phase-matched quadratic optical interaction in a realizable 2D double-slot lithium niobate (LN) waveguide. As opposed to the single-slot waveguide, the field can be well confined in the nanometric nonlinear material, and it is also more flexible for birefringence and dispersion design. The proposed compact double-slot structure could not only achieve form birefringence phase matching but also effectively enhance the modal overlap integral and expand the working wavelength. The calculated results on second harmonic generation show an extremely large bandwidth of ∼40 nm. The modal overlap integral up to 0.035 W<sup>3/2</sup>/V can be realized by optimizing the waveguide geometry, and it is much better than previous results on single-slot waveguides. Its temperature dependence is low-around 25 °C. The geometry is practical considering the current micromachining technique of LN.
Jun-Long Kou; Qin Wang; Zi-Yan Yu; Fei Xu; Yan-Qing Lu
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Optics letters     Volume:  36     ISSN:  1539-4794     ISO Abbreviation:  Opt Lett     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2011-07-04     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7708433     Medline TA:  Opt Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2533-5     Citation Subset:  IM    
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