A simple method of measuring the effective SRS coefficient in single-mode optical fibres and its applicability limits

2017 ◽  
Vol 47 (10) ◽  
pp. 906-910
Author(s):  
I I Shikhaliev ◽  
V V Gainov ◽  
A N Dorozhkin ◽  
O E Nanii ◽  
V A Konyshev ◽  
...  
Keyword(s):  
Single Mode ◽  
Optical Fibres ◽  
Simple Method

Simple method for manufacturing and optical characterization of tapered optical fibres

2016 ◽  
Vol 24 (4) ◽  
Author(s):  
A. Zakrzewski ◽  
A. Pięta ◽  
S. Patela
Keyword(s):  
Focal Length ◽  
Fdtd Method ◽  
Single Mode ◽  
Photonic Devices ◽  
Optical Fibres ◽  
Simple Method ◽  
Spot Diameter ◽  
Small Spot ◽  
Edge Method

AbstractPhotonic devices often use light delivered by a single-mode telecommunication fibre. However, as the diameter of the core of the optical fibre is of 10 microns, and the transverse dimensions of the photonic waveguides are usually micrometer or less, there is an issue of incompatibility. The problem may be solved by application of tapered optical fibres. For efficient light coupling, the taper should be prepared so as to create a beam of long focal length and small spot diameter in the focus. The article describes the design, fabrication and characterization of tapered optical fibres prepared with a fibre-optic fusion splicer. We modelled the tapers with FDTD method, for estimation of the influence of the tapered length and angle on the spot diameter and the focal length of an outgoing beam. We fabricated tapers from a standard single mode fibre by the Ericsson 995 PMfi- bre-optic fusion splicer. We planned the splicing technology so as to get the needed features of the beam. We planned a multistep fusion process, with optimized fusion current and fusion time. The experimental measurements of best tapered optical fibres were carried out by the knife-edge method.

Interlaboratory evaluation of theoretical modelling techniques for single-mode optical fibres

1992 ◽  
Vol 139 (5) ◽  
pp. 353 ◽  
Author(s):  
J. Pelayo ◽  
J. Paniello ◽  
N. Gisin ◽  
J.W. Burgmeijer ◽  
M. Blondel ◽  
...  
Keyword(s):  
Single Mode ◽  
Theoretical Modelling ◽  
Optical Fibres ◽  
Modelling Techniques

New formalism for bending losses in coated single-mode optical fibres

1989 ◽  
Vol 25 (22) ◽  
pp. 1544 ◽  
Author(s):  
I. Valiente ◽  
C. Vassallo
Keyword(s):  
Single Mode ◽  
Optical Fibres ◽  
New Formalism ◽  
Bending Losses

A Simple Method for Prediction of Effective Core Area and Index of Refraction of Single-mode Graded Index Fiber in the Low V Region

2014 ◽  
Vol 35 (4) ◽  
Author(s):  
Angshuman Majumdar ◽  
Satabdi Das ◽  
Sankar Gangopadhyay
Keyword(s):  
Refractive Index ◽  
Single Mode ◽  
Index Of Refraction ◽  
Core Area ◽  
Exact Results ◽  
Simple Method ◽  
Graded Index ◽  
Core Areas ◽  
V Region ◽  
User Friendly

AbstractBased on the simple power series formulation of fundamental mode developed by Chebyshev formalism in the low V region, we prescribe analytical expression for effective core area of graded index fiber. Taking step and parabolic index fibers as examples, we estimate the effective core areas as well as effective refractive index for different normalized frequencies (V number) having low values. We also show that our estimations match excellently with the available exact results. The concerned predictions by our method require little computation. Thus, this simple but accurate formalism will be user friendly for the system engineers.

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