Diameter measurement of optical nanofibers using a composite photonic crystal cavity

Jameesh Keloth; Mark Sadgrove; Ramachandrarao Yalla; Kohzo Hakuta

doi:10.1364/OL.40.004122

Diameter measurement of optical nanofibers using a composite photonic crystal cavity

Jameesh Keloth, Mark Sadgrove, Ramachandrarao Yalla, Kohzo Hakuta

Department of Physics

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

Abstract

We demonstrate a method for making precise measurements of the diameter of a tapered optical fiber with a sub-wavelength diameter waist (an optical nanofiber). The essence of the method is to create a composite photonic crystal cavity by mounting a defect-mode grating on an optical nanofiber. The resultant cavity has a resonance wavelength that is sensitive to the nanofiber's diameter, allowing the diameter to be inferred from optical measurements. This method offers a precise, nondestructive, and in situ way to characterize the nanofiber diameter.

Original language	English
Pages (from-to)	4122-4125
Number of pages	4
Journal	Optics Letters
Volume	40
Issue number	17
DOIs	https://doi.org/10.1364/OL.40.004122
Publication status	Published - 2015

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10.1364/OL.40.004122

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abstract = "We demonstrate a method for making precise measurements of the diameter of a tapered optical fiber with a sub-wavelength diameter waist (an optical nanofiber). The essence of the method is to create a composite photonic crystal cavity by mounting a defect-mode grating on an optical nanofiber. The resultant cavity has a resonance wavelength that is sensitive to the nanofiber's diameter, allowing the diameter to be inferred from optical measurements. This method offers a precise, nondestructive, and in situ way to characterize the nanofiber diameter.",

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AU - Sadgrove, Mark

AU - Yalla, Ramachandrarao

AU - Hakuta, Kohzo

PY - 2015

Y1 - 2015

N2 - We demonstrate a method for making precise measurements of the diameter of a tapered optical fiber with a sub-wavelength diameter waist (an optical nanofiber). The essence of the method is to create a composite photonic crystal cavity by mounting a defect-mode grating on an optical nanofiber. The resultant cavity has a resonance wavelength that is sensitive to the nanofiber's diameter, allowing the diameter to be inferred from optical measurements. This method offers a precise, nondestructive, and in situ way to characterize the nanofiber diameter.

AB - We demonstrate a method for making precise measurements of the diameter of a tapered optical fiber with a sub-wavelength diameter waist (an optical nanofiber). The essence of the method is to create a composite photonic crystal cavity by mounting a defect-mode grating on an optical nanofiber. The resultant cavity has a resonance wavelength that is sensitive to the nanofiber's diameter, allowing the diameter to be inferred from optical measurements. This method offers a precise, nondestructive, and in situ way to characterize the nanofiber diameter.

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Diameter measurement of optical nanofibers using a composite photonic crystal cavity

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