Results 231 to 240 of about 58,600 (289)

Optical fibres and fibre tapers with an array of Bragg gratings

Quantum electronics (Woodbury, N.Y.), 2019
The properties of optical fibres with an array of fibre Bragg gratings written directly during the fibre drawing are considered. Such optical fibres offer new possibilities for producing new types of active and passive fibre elements due to the enhanced ...
S. Popov, O. Butov, A. Kolosovskii, V. Voloshin, I. Vorob'ev, V. A. Isaev, M. Vyatkin, A. Fotiadi, Y. Chamorovsky   +8 more
semanticscholar   +1 more source

In-fibre Bragg grating sensors

Measurement Science and Technology, 1997
In-fibre Bragg grating (FBG) sensors are one of the most exciting developments in the field of optical fibre sensors in recent years. Compared with conventional fibre-optic sensors, FBG sensors have a number of distinguishing advantages. Significant progress has been made in applications to strain and temperature measurements.
openaire   +1 more source

Polymer fibre Bragg gratings tunable laser

2006 Optical Fiber Communication Conference and the National Fiber Optic Engineers Conference, 2006
Tunable laser using a polymer fibre Bragg grating with simple axial tension as tuning method is constructed. Continuous tunable wavelength over 35 nm with the peak power around -5 dBm and signal to noise ratio greater than 45 dB has been achieved.
H.Y. Liu, G.D. Peng, H.B. Liu, P.L. Chu
openaire   +1 more source

Fibre Bragg Grating Components (WG4)

1999
The COST 246 Working group WG4 “Bragg grating components” investigated the reliability of a new kind of all-fibre devices based in the coupling of different fibre modes by UV laser fabricated phrase gratings. The most prominent phase grating that couples the forward propagating to the backward propagating fundamental mode is called the fibre Bragg ...
openaire   +1 more source

Adding functionality to fibre Bragg gratings

Proceedings of LEOS'94, 2002
Until recently, research on optical fibre Bragg gratings has focused mainly on optimizing the fabrication of "plain" gratings, i.e. gratings with uniform amplitude and period. Grating lengths have also been limited by the size and shape of the writing beam, precluding fabrication of more complex structures. It is possible, however, to use more advanced
F. Ouellette, J. Canning, B. Eggleton, P. Hill, P.A. King, M.G. Sceats   +5 more
openaire   +1 more source

Photosensitisation of Phosphosilicate Fibre Bragg Gratings

Photosensitivity and Quadratic Nonlinearity in Glass Waveguides: Fundamentals and Applications, 1995
Photolytic grating writing in phosphorous doped waveguides has recently been possible only with substantial hydrogen loading [1-3]. In [1] this has been demonstrated for phosphosilicate planar waveguides using 193nm whilst for aluminophosphosilicate fibres the writing wavelength was the 248nm KrF line [2]. We have recently demonstrated photosensitivity
J. Canning, R. Pasman, M.G. Sceats
openaire   +1 more source

Fibre Bragg Grating and No-Core Fibre Sensors

2018
Introduction -- Literature Review -- Theory -- Methodology -- Indoor Fibre Bragg Grating Temperature Sensor -- Outdoor Fibre Bragg Grating Temperature Sensor -- Conclusion.
Suzairi Daud, Jalil Ali
openaire   +1 more source

Metal-coated Bragg grating reflecting fibre

Optical Fiber Technology, 2017
Abstract High-temperature optical fibres (OF) with fibre Bragg gratings (FBG) arrays written over a long length and in-line metal coating have been made for the first time. The optical parameters of the FBG arrays were tested by the optical frequency domain reflectometer (OFDR) method in a wide temperature range, demonstrating no degradation in ...
Yu.K. Chamorovskiy, O.V. Butov, A.O. Kolosovskiy, S.M. Popov, V.V. Voloshin, I.L. Vorob'ev, M.Yu. Vyatkin   +6 more
openaire   +1 more source

Regenerated Fibre Bragg Gratings: A critical assessment of more than 20 years of investigations

, 2021
L. Polz, Franz J. Dutz, R. Maier, H. Bartelt, J. Roths   +4 more
semanticscholar   +1 more source

Packaging of optical Fibre Bragg Gratings

2001 Proceedings. 51st Electronic Components and Technology Conference (Cat. No.01CH37220), 2002
Fibre Bragg Gratings (FBGs) are all-fibre optical filters with applications in sensing and telecommunication systems. The packaging of FBGs offers many challenges to the manufacturer as stringent tolerances for wavelength stability of the filter over widely varying environmental operating conditions are required for state of the art Dense Wavelength ...
D.C. Psaila, H.G. Inglis
openaire   +1 more source