Channeled spectrum of a fiber laser

Chartier, Thierry; Sanchez, François; Stéphan, G.; Boudec, P. Le; Delevaque, E.; Leners, R.; Francois, P.L.

doi:10.1364/ol.18.000355

Cited by 13 publications

(1 citation statement)

References 2 publications

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“…For integrated optical waveguides, for instance, the channeled spectrum is a classical technique for the characterization of dispersion properties and group delay dispersion [32,33]. A similar technique is also useful in the characterization of optical fibers [34].…”

Section: Introductionmentioning

confidence: 99%

Channeled spectrum in the transmission of phononic crystal waveguides

Wang

Liang

et al. 2018

Journal of Sound and Vibration

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Waveguiding in a phononic crystal (PC) can be achieved along either linear line defects or a sequence of cavities, for frequencies belonging to a complete bandgap. When waves are coupled inside a PC waveguide, modulations in the frequency transmission are generally observed, leading to the formation of a channeled spectrum. We show that the channeled spectrum results from the interference of forward and backward guided Bloch waves. We first theoretically develop a Bloch wave interference model. Then, we consider the case of linear waveguides and of coupled-resonator waveguides formed in a 2D square PC composed of water cylinders in mercury. The transmission properties of waveguides with different length and defect distribution are examined. In all cases, the observed channeled spectra are well explained by the theoretical model. This work is relevant to the design of new acoustic and elastic wave devices.

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Section: Introductionmentioning

confidence: 99%

Channeled spectrum in the transmission of phononic crystal waveguides

Wang

Liang

et al. 2018

Journal of Sound and Vibration

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Fiber birefringence measurement based on a beat‐frequency‐interrogated multilongitudinal‐mode distributed bragg reflector erbium‐doped fiber laser

Zhang

Liu

Jia

2012

Micro & Optical Tech Letters

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A novel fiber birefringence measurement scheme based on beat frequency interrogation of a multilongitudinal‐mode distributed Bragg reflector erbium‐doped fiber laser is presented and experimentally demonstrated. By analyzing the laser beat generation mechanism, an analytic expression describing fiber birefringence in terms of laser wavelength, laser beat frequency, and the fiber laser geometry has been obtained. Calculation of fiber birefringence based on the experimental observation of laser beat frequency shift indicates that the strain dependence of fiber birefringence turns out a perfect linear monotone decreasing relationship with a strain coefficient of ∼−2.2 × 10–11/με, which is in good agreement with related reports. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:702–707, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26630

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