Broadband wavelength converters with flattop responses based on cascaded second-harmonic generation and difference frequency generation in Bessel-chirped gratings
Djordjevic, Ivan B.
AffiliationUniv Arizona, Dept Elect & Comp Engn
MetadataShow full item record
PublisherOPTICAL SOC AMER
CitationBroadband wavelength converters with flattop responses based on cascaded second-harmonic generation and difference frequency generation in Bessel-chirped gratings 2016, 24 (10):10946 Optics Express
Rights© 2016 OSA
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AbstractWe investigate ultra-broadband wavelength converters based on cascaded second-harmonic generation and difference frequency generation using Bessel-chirped gratings (BCGs) in lithium niobate waveguides, and compare them to the ones using uniform grating and segmented grating, respectively. For the same length and power, the BCGs show broader bandwidth than the other two types of grating. The ripple of the matching response is very small as well. Analysis also shows that almost the same conversion bandwidth and maximum conversion efficiency with tolerant response flatness can be achieved when the manufacturing tolerance of the waveguide length is smaller than 0.1 cm.
NoteOpen access journal.
VersionFinal published version
SponsorsNational Natural Science Foundation of China [61302105, 61302163]; Fundamental Research Funds for the Central Universities [2014MS99, 13QN40]; Science and Technology Research Foundation for Colleges and Universities in Hebei Province [QN2016093]