Wavelength dependences of Brillouin frequency shifts of optical fibres in 1.55 μm wavelength region

1991 ◽  
Vol 27 (19) ◽  
pp. 1764 ◽  
Author(s):  
T.-O. Tsun ◽  
A. Wada ◽  
R. Yamauchi
Keyword(s):  
Wavelength Region ◽  
Optical Fibres ◽  
Frequency Shifts

scholarly journals Instrumentation of Stratospheric Balloon Straps with Optical Fibre for Temperature and Strain Monitoring

Sensors ◽  
2020 ◽  
Vol 20 (5) ◽  
pp. 1433 ◽  
Author(s):  
Yann Lecieux ◽  
Cyril Lupi ◽  
Dominique Leduc ◽  
Quentin Macé ◽  
Valentin Jeanneau ◽  
...  
Keyword(s):  
Optical Fibre ◽  
Pressure Field ◽  
Numerical Models ◽  
Industrial Process ◽  
Mechanical Tests ◽  
Optical Fibres ◽  
Frequency Shifts ◽  
Strain Monitoring ◽  
Stratospheric Balloon

This article is devoted to the instrumentation, with optical fibres, of the straps holding the envelope of stratospheric balloons. This instrumentation is motivated in the first instance by the need to validate the numerical models used in the design of balloons. It must also be used to measure the temperature along the envelope in order to deduce the pressure field. It is shown at first that the optical fibres can be inserted inside a strap during its fabrication. Different kinds of insertion are considered, none of them perturb the industrial process. The instrumented straps were then submitted to thermal and mechanical tests and the distributed Brillouin frequency shifts were measured. We thus determined the type of insertion to be used according to the parameter (temperature or strain) to be measured and assessed the performance of the measurement chain.

Solitons in optical fibres and the soliton laser

1985 ◽  
Vol 315 (1533) ◽  
pp. 437-450 ◽  
Keyword(s):  
Short Pulse ◽  
Wavelength Region ◽  
Single Mode ◽  
Optical Fibres ◽  
Single Mode Fibre ◽  
Short Pulse Laser ◽  
The One ◽  
Pulse Characteristics ◽  
Near Future ◽  
Mode Fibre

In this paper, I describe both fundamental and higher-order solitons in optical fibres, their remarkable properties, and the first experimental observation of them. It will be shown that such solitons are easily created and, once formed, are quite stable in the one-dimensional world of single-mode fibres. Consequently, a number of exciting uses have already been found, or have been proposed for them. One of those uses is in the soliton laser, a mode-locked (short-pulse) laser, whose pulse characteristics are determ ined by a length of single-mode fibre in its feedback loop. Pulse width scales with the square root of the fibre’s length, in accord with N = 2 soliton behaviour. The first version of this device, based on a colour-centre laser broadly tunable in the 1.5 pm wavelength region, has already produced pulses as short as 0.13 ps. Compression in a second, external fibre has reduced those pulse widths to less than 50 fs, and reduction by at least another factor of two is considered likely in the near future.

Optimum fibre parameters of low-loss single-mode optical fibres for use in 1.55μm-wavelength region

1987 ◽  
Vol 23 (18) ◽  
pp. 963 ◽  
Author(s):  
Y. Namihira ◽  
Y. Horiuchi ◽  
M. Kuwazuru ◽  
M. Nunokawa ◽  
Y. Iwamoto
Keyword(s):  
Wavelength Region ◽  
Single Mode ◽  
Optical Fibres ◽  
Low Loss

Optical fibres cut their losses

Nature ◽  
2003 ◽  
Author(s):  
Philip Ball
Keyword(s):  
Optical Fibres

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

Test of directional photoionisation models of second harmonic generation in optical fibres

1992 ◽  
Vol 139 (2) ◽  
pp. 133 ◽  
Author(s):  
N.M. Lawandy ◽  
T.J. Driscoll ◽  
C.L. Adler ◽  
N.M. Lawandy
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Optical Fibres

Thermal transients of coated optical fibres exposed to microwave power at 2.45 GHz

1990 ◽  
Vol 137 (3) ◽  
pp. 174
Author(s):  
M.J. Sacco ◽  
L.J. Auchterlonie ◽  
A.J. Harris
Keyword(s):  
Microwave Power ◽  
Optical Fibres ◽  
Thermal Transients
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