Single-mode fiber coupling efficiency with graded-index rod lenses

Gilsdorf, Robert W.; Palais, Joseph C.

doi:10.1364/ao.33.003440

Cited by 66 publications

(30 citation statements)

References 6 publications

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“…The coupling efficiency between the input mode field and the fundamental mode field in the second SMF is defined by the following overlap integral [39,40] …”

Section: Grin Fiber Lensesmentioning

confidence: 99%

Design of GRIN optical components for coupling and interconnects

Gómez-Reino¹,

Pérez²,

Bao³

et al. 2008

Laser & Photonics Reviews

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This paper reviews the design of some optical systems for coupling and interconnection by GRIN components. The optical systems designed with these components are based on imaging and transforming properties of such components to carry out specific functions. First of all, a brief description of light propagation through GRIN materials will be given. After that, a device to couple light by a GRIN fiber lens into fibers of different core sizes with low loss is described. The coupling efficiency as well as the coupling loss are studied versus variation of the GRIN fiber lens length and the refractive-index profile of the coupler. The design of crossover and parallel interconnects by using a GRIN planar structure will be presented. The optical analysis includes the PSF for describing the performance of the device and the SBP for estimating the numbers of channels that can be handled. The dependence of the number of channels on the wavelength of light and the transverse aperture of the planar interconnect is shown.Spherical GRIN materials: Luneburg (top) and Maxwell's fisheye (bottom) lenses.

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“…The coupling efficiency between the input mode field and the fundamental mode field in the second SMF is defined by the following overlap integral [39,40] …”

Section: Grin Fiber Lensesmentioning

confidence: 99%

Design of GRIN optical components for coupling and interconnects

Gómez-Reino¹,

Pérez²,

Bao³

et al. 2008

Laser & Photonics Reviews

View full text Add to dashboard Cite

show abstract

“…When transmitting information over optical fibers easier connection between the fibers do using gradient elements [6,7], usually, such components are in some way analogue of a lens [8,9], which forms a short focus. Typically used two gradient elements with a sufficiently precise mutual agreement: one at the output, which scatters the laser beams and one at the entrance, which collects the laser beam [10,11]. One advantage of using the axicon is the formation of an extended focus [12,13], including subwavelength lateral size [14,15].…”

Section: Introductionmentioning

confidence: 99%

Diffraction of the Gaussian Beam on Layered Lens and Similar a Conical and Diffraction Axicons

Savelyev

Samara²

2016

Collection of Selected Papers of the II International Conference on Information Technology and Nanotechnology

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Abstract. In this paper we consider the possibility of replacing the diffraction axicon and the conical axicon on the gradient lens with a linear variation of the refractive index. Analytically and numerically using the finite-difference timedomain method we performed a comparative study of the Gaussian beam diffraction on diffraction mikro-axicon, conical axicon and gradient microlens consisting of subwavelength layers. The parameters under consideration the types of elements estimated in the depth of focus and a transverse dimension of beam.Keywords: diffraction optics, subwavelength structures, laser beams, diffraction axicon, layered lens, conical axicon, FDTD.Citation: Savelyev DA. Diffraction of the Gaussian beam on layered lens and similar a conical and diffraction axicons.

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“…In optics communications very often arises the necessity to joint together two single-mode fibers or light sources to single-mode fibers, operation that can be carry out by GRIN (GRadient-INdex) lenses 5 . In this way, two common uses of GRIN lenses are for controlling beam size and deflecting light in a tapered GRIN lens, when illuminated by a parallel beam of tilted rays, as well as for obtaining the maximum coupling efficiency between fundamental modes of two singlemode fibers, using in this case a GRIN fiber lens.…”

Section: Introductionmentioning

confidence: 99%

MATLAB GUI (graphical user interface) for the design of GRIN components for optical systems as an educational tool

Gómez‐Varela

Bao-Varela

2014

SPIE Proceedings

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New technologies and the available computing tools are becoming more important every day in the teaching evolution. The use of Graphical User Interfaces (GUI) with MATLAB enables the implementation of practical teaching methodologies to make easier the comprehension of a given subject. In this work, we report on the application of GUIs in order to provide the students with a simple tool for a better understanding on how to design GRIN elements for optical systems. Another GUIs advantage is that they can be converted to an executable file, so any student could use the interface in their own computer without having a MATLAB license. We present a graphical interface to show the performance of an optical device for controlling beam size and for deflecting light for coupling purposes, by a simple geometrical optics study, in a tapered GRIN lens illuminated by a parallel beam of tilted rays. We also show a graphical interface to obtain the maximum coupling efficiency between fundamental modes of two single-mode fibers by a scaling operation carried out by a GRIN fiber lens. With this interface the students can vary the magnification and the image plane in order to get the more suitable GRIN fiber lens to maximize the coupling efficiency between two fibers.

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Single-mode fiber coupling efficiency with graded-index rod lenses

Cited by 66 publications

References 6 publications

Design of GRIN optical components for coupling and interconnects

Design of GRIN optical components for coupling and interconnects

Diffraction of the Gaussian Beam on Layered Lens and Similar a Conical and Diffraction Axicons

MATLAB GUI (graphical user interface) for the design of GRIN components for optical systems as an educational tool

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