Enhancing optical field intensities in Gaussian-profile fiber Bragg gratings

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DOIResolve DOI: http://doi.org/10.1364/OL.39.000849
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TypeArticle
Journal titleOptics Letters
ISSN1539-4794
Volume39
Issue4
Pages849852; # of pages: 4
SubjectGroup delay; Field intensity; Gaussian profiles; Incoming light; Nonlinear optical response; Optical field intensity; Photothermally; Strong field; Transmission peaks; Fiber Bragg gratings
AbstractGaussian profile fiber Bragg gratings exhibit narrow-bandwidth transmission peaks with significant group delay at the edge of their photonic bandgap. We demonstrate group delays ranging from 0.2 to 5.6 ns from a 1.2 cm structure. Simulations suggest such a device would be capable of enhancing the field intensity of incoming light by a factor of 800. Enhancement is confirmed by photothermally induced bistability of these peaks even at sub-milliwatt input powers with as much as a four-fold difference in the magnitude of their responses. The strong field intensities of these modes could significantly enhance desired nonlinear optical responses in fiber, provided the impact of absorption is addressed. © 2014 Optical Society of America.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); Security and Disruptive Technologies (SDT-TSR)
Peer reviewedYes
NPARC number21272185
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Record identifier79a1dc2a-37e8-4166-90a6-93b90e412eba
Record created2014-07-23
Record modified2016-05-09
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