Compact optical microfiber phase modulator

Zhang, Xueliang; Belal, Mohammad; Chen, G. Y.; Zhang, Song; Brambilla, Gilberto; Newson, T.P.

doi:10.1364/ol.37.000320

Cited by 20 publications

(8 citation statements)

References 14 publications

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“…Many linear devices also exploit the strong confinement in OMs (which can withstand tight bending) and the simplicity with which their dispersion can be engineered, a feature that is clearly not achievable with conventional fibers. Optical phase modulators are an example, in which an OM are carefully wrapped around a PZT rod as shown in Figs. a and b.…”

Section: Devices Based On Strong Confinementmentioning

confidence: 99%

Optical microfiber passive components

Ismaeel

Lee

Ding

et al. 2012

Laser & Photonics Reviews

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Section: Devices Based On Strong Confinementmentioning

confidence: 99%

Optical microfiber passive components

Ismaeel

Lee

Ding

et al. 2012

Laser & Photonics Reviews

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“…Theoretically QF value of up to 1010 is predicated [5] and a value of 470000 has been realized by the formation of microfiber coil [6]. Among the proposed structures, microfiber knot has been widely used in applications such as modulators and convertors [7], [8], tunable lasers [9], [10] and sensors [11] due to stable light coupling [12], its firm structure and easy manipulation compare with the others. Also this structure has been considered Manuscript as all pass filter and as an add-drop filter (including an extra microfiber beside the knot) with QF of 13000 [13].…”

Section: Introductionmentioning

confidence: 99%

Demonstration of a Periodic Passband Filter Based on Coupled Microfiber Knots

Nodehi

Mohammed

Ahmad

et al. 2016

IEEE Photon. Technol. Lett.

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In this letter, a periodical passband filter based microfiber structure is proposed. The structure is made of successive microfiber knot resonators. The periodical spectral filtering is a result of superposition of the uncoupled modes that belong to the individual microfiber knots and coupling induced resonant wavelength shift. This letter demonstrates the experimental investigation of the thermal effect on the spectral modulation of the structure. The proposed resonator consists of two knots with radii 460.01 and 230 µm, which are knitted successively, in a column. This results in a periodic spectrum with 720-pm passband, 425-pm stopband, and a suppression ratio of 5.2 dB. Increasing the optical path, using a hot metal bar with a temperature of 30°close to the big knot, the periodic passband filter switches to all pass filter with a free spectral range of 1150 pm and quality factor 6000. This letter as well demonstrates experimentally how to enhance passband and stopband widths through decreasing the knot's radii as well as increasing the number of knots. Compatibility of this structure with single-mode fiber systems makes it easy to be used as noise filtering in telecommunication and fiber lasers.Index Terms-Microfiber knot, pass band filter, fiber laser.

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“…By micromanipulation, the OMR can be fabricated by wrapping a 1.0 μm radius microfiber on a dielectric rod. The dielectric rod has a smaller refractive index as compared with the SMF and the OMR is coated with a thin layer of a lowrefractive-index polymer, such as Teflon [28,29]. The diameter of the rod is 0.3 mm and the two terminals of the rod are fixed on a 10 mm long ferroelectric crystal, such as PbZn 1 ∕ 3 Nb 2 ∕ 3 O 3 -PbTiO 3 (PZN-PT), using the epoxy resin.…”

Section: Introductionmentioning

confidence: 99%

Slow-light element for tunable time delay based on optical microcoil resonator

Cheng

Ren

2012

Appl. Opt.

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We propose a simple and compact slow-light element by use of an optical microcoil resonator (OMR) constituted by two microfiber coils. Based on the matrix exponential method, we solve the coupled-wave equations of the OMR with n turns of microfiber coils and obtain a general solution. Simulations indicate that a tunable slow-light propagation can be obtained by controlling the coupling coefficient between the two adjacent microfiber coils by means of regulating the voltage applied to the ferroelectric crystal. A slow-light time delay up to 62 ps with a bandwidth of 0.4 nm is performed at the wavelength around 1.5 μm.

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Compact optical microfiber phase modulator

Cited by 20 publications

References 14 publications

Optical microfiber passive components

Optical microfiber passive components

Demonstration of a Periodic Passband Filter Based on Coupled Microfiber Knots

Slow-light element for tunable time delay based on optical microcoil resonator

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