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tunable acousto-optic filter based on photonic crystal fiber
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10.1063/1.2806198
/content/aip/journal/apl/92/3/10.1063/1.2806198
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/3/10.1063/1.2806198
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

AOTF based on TM PCF. (a) Basic configuration; the PCF is the LMA-15 provided by Crystal Fiber and the cross section of the PCF is shown in the inset; SMF represents single mode fiber. (b) Acoustic frequency and optical wavelength as functions of modal beat length between and . The beat length equals to the acoutic wavelength under the phase matching condition (Eq. (1)).

Image of FIG. 2.
FIG. 2.

Far field patterns recorded at the output of the TM PCF. (a) and (c) are intensity profiles when acoustic signals are off, showing the patterns of modes. (b) and (d) are intensity profiles when acoustic signals are on, showing the coupled mode patterns. (a) and (b) are for wavelength of and (c) and (d) are for wavelength of .

Image of FIG. 3.
FIG. 3.

Tuning characteristics of the AOTF. (a) Wavelength tuning from , the ripples from are due to the instability of the supercontinuum source, and coupling to cladding modes cannot be observed. (b) Relationships between the center wavelength, the linewidth of the notch and the acoustic frequency, lines (calculation) and symbols (experiment). The optical wavelength-acoustic frequency curve was calculated by using the results shown in Fig. 1(b) and phase matching relationship .

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/content/aip/journal/apl/92/3/10.1063/1.2806198
2008-01-25
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: 1000nm tunable acousto-optic filter based on photonic crystal fiber
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/3/10.1063/1.2806198
10.1063/1.2806198
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