Coupling Characteristics of Multicore Photonic Crystal Fiber-Based 1$\,\times\,$4 Power Splitters

Varshney, Shailendra K.; Saitoh, Kunimasa; Sinha, R. K.; Koshiba, Masanori

doi:10.1109/jlt.2008.2006692

Cited by 33 publications

(15 citation statements)

References 17 publications

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“…We anticipate that such a type of magneto-tunable power-coupling photonic device can find applications in optical magnetometry, sensing, imaging and optical communications 22,23,24 .…”

Section: Discussionmentioning

confidence: 99%

Power coupling in multicore optical fiber tapers utilizing out-cladding ferrofluids

2016

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Herein we present the experimental implementation of a power coupling device that combines the technology of tapered, multicore microstructured optical fibres (MOFs) with ferrofluidic overlayers. Power coupling between different cores of a tapered, multicore MOF is demonstrated, utilizing magneto-refraction effects induced by magnetic field stimulus into a ferrofluidic outcladding surrounding of the multicore optical fibre taper. By tapering the multicore all-solid MOF to a specific diameter, the excitation of all the adjacent cores through the central one is achieved. Transmission spectra measurements of the individual cores proved that light coupling between fiber cores can be manipulated by magnetic field stimulus. We anticipate that such a type of magneto-tunable power-coupling photonic device can find applications in optical magnetometry, imaging and optical communications.

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“…We anticipate that such a type of magneto-tunable power-coupling photonic device can find applications in optical magnetometry, sensing, imaging and optical communications 22,23,24 .…”

Section: Discussionmentioning

confidence: 99%

Power coupling in multicore optical fiber tapers utilizing out-cladding ferrofluids

2016

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“…According to the waveguide theory of the DC-PCF, [24][25][26][27] the two output beams from the two fiber cores maintain the same frequency, but possess different phases and light intensities due to the mode coupling between the cores. Thus, by controlling the phase, the two beams create interference in the free space at the end of the DC-PCF, shown in Figure 1(c) and (d).…”

Section: X-f Huang Et Almentioning

confidence: 99%

Design and Characteristics of Dual-Core Photonic Crystal Fiber Doppler Differential Velocimeter

Zheng

Zhao

et al. 2015

International Journal of Optomechatronics

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We present the design and characteristics of laser Doppler differential velocimeter using a dual-core photonic crystal fiber (DC-PCF). Transmission modes and mode interference characteristics of DC-PCF were investigated. Results show that higher order modes and cladding modes are excited, which can be cut off by bending the DC-PCF. The independent fundamental modes of two cores are clearly obtained. The mode interference near the distal end of DC-PCF was observed, and the interference process from independent faculae to the interaction of two core beams is presented. The velocimeter demonstrates a good working distance ($30 lm) and a small measuring volume ($273.4 lm 3 ), which is well suited for flow measurement in micro-scale fluidic channels. The velocity measurement is successfully demonstrated by observing the frequency modulation and the spacing of the fringe projected interference. The measurements are verified and in good agreement with the results obtained by the light gate sensor.

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“…In this paper, the DC-PCF is utilized to transmit the two light beams. According to the waveguide theory of the DC-PCF [23][24][25][26], the two output beams from the two fiber cores have the same frequency, but possess different phases and light intensities due to the mode coupling between the cores. Thus, by controlling the phase, the two beams create interference fringes in the free space at the end of the DC-PCF.…”

Section: Theorymentioning

confidence: 99%

Dual-core photonic crystal fiber Doppler velocimeter for small horizontal axis wind turbine blade rotational speed measurement

Huang

Wang

2014

SPIE Proceedings

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The blades are crucial components of a wind turbine, and its steady and reliable operation is directly related to the power output. Thus, condition monitoring and fault diagnosis of the wind turbine blades is highly beneficial to the operational cost. This paper presents a study of small horizontal axis wind turbine blade rotational speed measurement by laser Doppler velocimeter based on dual-core photonic crystal fiber (DC-PCF). The theory on the DC-PCF Doppler velocimeter is presented, and the measurement system is designed and tested. Experimental results show that the DC-PCF Doppler velocimeter has been proved to work successfully. The uncertainty of the rotational speed is about 0 ~ 4 rpm. The accuracy can meet the requirements for monitoring the rotational operation of the wind turbine.

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Coupling Characteristics of Multicore Photonic Crystal Fiber-Based 1$\,\times\,$4 Power Splitters

Cited by 33 publications

References 17 publications

Power coupling in multicore optical fiber tapers utilizing out-cladding ferrofluids

Power coupling in multicore optical fiber tapers utilizing out-cladding ferrofluids

Design and Characteristics of Dual-Core Photonic Crystal Fiber Doppler Differential Velocimeter

Dual-core photonic crystal fiber Doppler velocimeter for small horizontal axis wind turbine blade rotational speed measurement

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