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High-efficiency second harmonic generation of blue light on thin-film lithium niobate

Journal Article · · Optics Letters
DOI:https://doi.org/10.1364/ol.455046· OSTI ID:1980983
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The strength of interactions between photons in aχ(2)nonlinear optical waveguide increases at shorter wavelengths. These larger interactions enable coherent spectral translation and light generation at a lower power, over a broader bandwidth, and in a smaller device: all of which open the door to new technologies spanning fields from classical to quantum optics. Stronger interactions may also grant access to new regimes of quantum optics to be explored at the few-photon level. One promising platform that could enable these advances is thin-film lithium niobate (TFLN), due to its broad optical transparency window and possibility for quasi-phase matching and dispersion engineering. In this Letter, we demonstrate second harmonic generation of blue light on an integrated thin-film lithium niobate waveguide and observe a conversion efficiency ofη0 = 33, 000%/W-cm2, significantly exceeding previous demonstrations.

Research Organization:
Stanford Univ., CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
SC0019174
OSTI ID:
1980983
Journal Information:
Optics Letters, Vol. 47, Issue 11; ISSN 0146-9592
Publisher:
Optical Society of America (OSA)
Country of Publication:
United States
Language:
English

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