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Groupe Photonique Non Linéaire |  |
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Journal articles
Highly efficient and reproducible evanescent Raman converters based on a silica nanofiber immersed in a liquid
Abstract : We present highly efficient and reproducible Raman converters built with a silica nanofiber immersed in ethanol. The converters are pumped at 532 nm in the sub-nanosecond regime and the first Stokes order photons are generated in the evanescent field probing the liquid at 630 nm. Two standard fibers (SMF28, 460HP) are tested and compared. The Raman conversion operating range limited by the damage threshold is optimized, leading to an external Raman conversion efficiency up to 60% with a nanofiber radius of 300 nm and a length of 8 cm. The extracted Stokes energy is 0.29 µJ, which is three times higher than the previous result. We give guidelines for the design of other efficient evanescent Raman converters, opening the way for a new family of all-fibered compact Raman sources.
Cited literature [20 references]
https://hal.archives-ouvertes.fr/hal-02379006
Contributor : Philippe Delaye <>
Submitted on : Monday, November 25, 2019 - 2:47:13 PM
Last modification on : Thursday, November 12, 2020 - 9:42:19 AM
Long-term archiving on: : Wednesday, February 26, 2020 - 6:34:39 PM
Contributor : Philippe Delaye <>
Submitted on : Monday, November 25, 2019 - 2:47:13 PM
Last modification on : Thursday, November 12, 2020 - 9:42:19 AM
Long-term archiving on: : Wednesday, February 26, 2020 - 6:34:39 PM
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