Piezoelectrically induced optical phase modulation of light in single-mode fibers

Imai, Masaaki; Yano, Toshiaki; Motoi, Ko; Odajima, Akira

doi:10.1109/3.144482

Cited by 17 publications

(8 citation statements)

References 17 publications

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“…From such considerations, we used a new thin fiber whose parameters are shown in Table 2. The core diameter of this thin fiber (Imai et al 1992) is nearly half the core diameter of a standard single-mode fiber. Then, we calculated the acoustic source frequency for a specially designed fiber of Table 2.…”

Section: Designed Parameters and Experimental Setupmentioning

confidence: 99%

“…The specially designed fiber was fabricated to enhance the sensitivity of optical phase modulation in piezoelectric copolymer coated single-mode fibers (Imai et al 1992). For the first time to our knowledge, we used a thin fiber (80 µm of cladding diameter) in the section under which flexural waves are excited, and spliced both ends of its fiber to a tapered 125 µm single-mode fiber (Abrishamian et al 2007a).…”

Section: )mentioning

confidence: 99%

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Design theory and experiment of acousto-optical tunable filter by use of flexural waves applied to thin optical fiber

et al. 2008

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Spectral response of acoustically induced microbending through thin optical fiber is discussed from mode-coupling of core and cladding modes. The thin fiber is analyzed in three-layered structure (core-cladding-air) to gain insights into acousto-optic modulation. We explained the dependence of core and/or cladding diameters on acoustic source parameters from numerical calculations. According to the calculations, we successfully fabricated all-optical tunable filter using this thin fiber that yields an efficient mode-coupling at flexural wave frequencies less than 1 MHz. To increase the acousto-optic effect, we used a specially designed thin optical fiber (80 µm of cladding diameter) in the section where flexural wave is produced, and spliced both ends of the thin fiber to the tapered 125 µm fibers. The frequency and voltage tuning of fabricated filter is also confirmed by changing the driven frequency and applied voltage of the PZT, respectively. This result suggests a possibility of fiber-optic device application as all-optical tunable filter at 1.55 µm.

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Section: Designed Parameters and Experimental Setupmentioning

confidence: 99%

Section: )mentioning

confidence: 99%

Design theory and experiment of acousto-optical tunable filter by use of flexural waves applied to thin optical fiber

et al. 2008

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“…Also, the longer fibers increase static polarization mismatch and dynamic birefringence modulation [14]. Alternatively, fibers coated with piezoelectric films have recently been used [16]. When a voltage is applied to the piezo jacket, the fiber is squeezed radially and thus increases in length.…”

Section: Fringe Generation With a Piezoelectric Stackmentioning

confidence: 99%

An optical coherence microscope for 3-dimensional imaging in developmental biology

Hoeling¹,

Fernandez²,

Haskell³

et al. 2000

Opt. Express

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An optical coherence microscope (OCM) has been designed and constructed to acquire 3-dimensional images of highly scattering biological tissue. Volume-rendering software is used to enhance 3-D visualization of the data sets. Lateral resolution of the OCM is 5 µm (FWHM), and the depth resolution is 10 µm (FWHM) in tissue. The design trade-offs for a 3-D OCM are discussed, and the fundamental photon noise limitation is measured and compared with theory. A rotating 3-D image of a frog embryo is presented to illustrate the capabilities of the instrument.

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“…[1][2][3][4] Besides phase shifter and modulator applications, piezoelectric coated optical fibers can also be exploited in electric field sensing devices. [5][6][7] Polymer [1][2][3][4]8,9 and ZnO 10-12 piezoelectric coatings on optical fibers have been investigated for phase modulation applications. Sputter deposited axially symmetric ZnO coatings provide several advantages for piezoelectric fiber optic modulator (PFOM) fabrication and operation in comparison with polymer coatings.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and structural analysis of ZnO coated fiber optic phase modulators

1996

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Fiber optic modulators were fabricated by coating optical fibers with electrode and piezoelectric ZnO layers. The techniques of piezoelectric fiber optic modulator (PFOM) fabrication are presented, and the microstructure and crystallographic texture of the coatings are analyzed. In order to produce thick (approximately 5 mm) ZnO coatings, it was necessary to study the reactive dc magnetron sputtering process in O 2 ͞Ar gas mixtures under conditions close to the transition between an oxidized and nonoxidized Zn target surface. In situ quartz crystal microbalance measurements of the deposition rate revealed thee distinct regions in the deposition rate (R) vs oxygen partial pressure (P O2 ) behavior, at constant total pressure, for sputtering under conditions that provided an oxidized Zn target surface. Additionally, a transition between oxygen and argon dominated sputtering as observed by varying the sputtering pressure while maintaining a constant P O 2 . The transition between oxygen and argon dominated sputtering influences R to varying extents within the three R vs P O 2 regions for an oxidized target surface. Correlations among the cathode current and voltage, deposition rate, and gas flow rate are presented to give a better understanding of the reactive sputtering processes occurring at the oxidized Zn target surface. Sputtering conditions optimized for a high ZnO deposition rate were used to produce ͗001͘ radially oriented ZnO fiber coatings for PFOM devices that can produce optical phase shifts as large as 0.38 rad͞V.

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Piezoelectrically induced optical phase modulation of light in single-mode fibers

Cited by 17 publications

References 17 publications

Design theory and experiment of acousto-optical tunable filter by use of flexural waves applied to thin optical fiber

Design theory and experiment of acousto-optical tunable filter by use of flexural waves applied to thin optical fiber

An optical coherence microscope for 3-dimensional imaging in developmental biology

Fabrication and structural analysis of ZnO coated fiber optic phase modulators

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