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Optical excitation and characterization of gigahertz acoustic resonances in optical fiber tapers
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10.1063/1.2995863
/content/aip/journal/apl/93/13/10.1063/1.2995863
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/13/10.1063/1.2995863
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic diagram of the setup used for excitation and characterization of ARs in the tapered fibers. PLS: pulsed light source. LD: laser diode. PC: polarization controller. DC: directional coupler. TF: tunable filter. PM: phase modulator. EDFA: erbium-doped fiber amplifier. PD: photodetector.

Image of FIG. 2.
FIG. 2.

Oscilloscope trace of the output signal of the Sagnac interferometer including the taper. The excited ARs are detected within the 300 ns time window with the phase bias applied. An optical pulse is launched into the taper at .

Image of FIG. 3.
FIG. 3.

(a) Enlarged view of Fig. 2 around the AR signal. [(b) and (c)] Enlarged output signals of the Sagnac interferometer with a taper and a taper, respectively.

Image of FIG. 4.
FIG. 4.

(a) Fourier spectra of the output signals in Fig. 3, showing the AR frequencies. (b) Relationship between the taper thickness and the frequencies of ARs in the and modes. Both the measurements (dots) and the theoretical expectations (curves) are shown.

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/content/aip/journal/apl/93/13/10.1063/1.2995863
2008-10-02
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Optical excitation and characterization of gigahertz acoustic resonances in optical fiber tapers
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/13/10.1063/1.2995863
10.1063/1.2995863
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