Methodology of splicing large air filling factor suspended core photonic crystal fibres

2011 ◽  
Vol 19 (2) ◽  
Author(s):  
L. Jaroszewicz ◽  
M. Murawski ◽  
T. Nasilowski ◽  
K. Stasiewicz ◽  
P. Marć ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Light Propagation ◽  
Optical Power ◽  
Single Mode ◽  
Low Loss ◽  
Gaussian Shape ◽  
Photonic Crystal Fibre ◽  
Single Mode Fibre ◽  
Non Gaussian ◽  
Mode Fibre

AbstractWe report the methodology of effective low-loss fusion splicing a photonic crystal fibre (PCF) to itself as well as to a standard single mode fibre (SMF). Distinctly from other papers in this area, we report on the results for splicing suspended core (SC) PCF having tiny core and non-Gaussian shape of guided beam. We show that studied splices exhibit transmission losses strongly dispersive and non-reciprocal in view of light propagation direction. Achieved splicing losses, defined as larger decrease in transmitted optical power comparing both propagation directions, are equal to 2.71 ±0.25 dB, 1.55 ±0.25 dB at 1550 nm for fibre SC PCF spliced to itself and to SMF, respectively.

Ultimate low-loss single-mode fibre at 1.55 μm

1979 ◽  
Vol 15 (4) ◽  
pp. 106 ◽  
Author(s):  
T. Miya ◽  
Y. Terunuma ◽  
T. Hosaka ◽  
T. Miyashita
Keyword(s):  
Single Mode ◽  
Low Loss ◽  
Single Mode Fibre ◽  
Mode Fibre

Low-loss splicing of a 62.4 km single-mode-fibre link

1982 ◽  
Vol 18 (16) ◽  
pp. 697 ◽  
Author(s):  
J.S. Leach ◽  
G.J. Cannell ◽  
A.J. Robertson ◽  
P. Gurton
Keyword(s):  
Single Mode ◽  
Low Loss ◽  
Single Mode Fibre ◽  
Mode Fibre

scholarly journals Optically Powered Gas Monitoring System Using Single-Mode Fibre for Underground Coal Mines

2021 ◽  
Author(s):  
Yingge Chen ◽  
Leonardo Silvestri ◽  
Xinyue Lei ◽  
François Ladouceur
Keyword(s):  
Monitoring System ◽  
Low Cost ◽  
Electrical Power ◽  
Optical Power ◽  
Single Mode ◽  
Power Delivery ◽  
Gas Monitoring ◽  
Ultra Low Power ◽  
Single Mode Fibre ◽  
Mode Fibre

Abstract We present an optically powered, intrinsically safe gas monitoring system to measure four essential environmental gases (CH4, CO2, CO and O2), together with ambient temperature and pressure, for underground mines. The system is based on three key technologies developed at UNSW: (1) power-over-fibre (PoF) at 1,550 nm using a single industry-standard, low-cost single-mode fibre (SMF) for both power delivery and information transmission, (2) liquid-crystal-based optical transducers for optical telemetry, and (3) ultra-low power consumption design of all electronics. Together, this approach allows each gas monitoring station to operate with less than 150 mW of optical power, meeting the intrinsic safety requirements specified by the IEC60079-28 standard. A 2-month field trial at BMA’s Broadmeadow underground mine proved the cabling compatibility to the mine’s existing optical network and the stability of the system performance. Compared with conventional electrically powered gas sensors, this technology bypasses the usual roadblocks of underground gas monitoring where electrical power is either unsafe or unavailable. Furthermore, using one fibre for both power delivery and communication enables longer distance coverage, reduces optical cabling and increases multiplexing possibilities and data throughput for better awareness of underground environment.

Low-Loss single-mode fibre at the material-dispersion-free wavelength of 1.27 μm

1977 ◽  
Vol 13 (15) ◽  
pp. 442 ◽  
Author(s):  
M. Kawachi ◽  
A. Kawana ◽  
T. Miyashita
Keyword(s):  
Single Mode ◽  
Material Dispersion ◽  
Low Loss ◽  
Single Mode Fibre ◽  
Mode Fibre

Low-loss single-mode fibre connectors

1979 ◽  
Vol 15 (1) ◽  
pp. 28 ◽  
Author(s):  
Nobuo Shimizu ◽  
Haruhiko Tsuchiya ◽  
Tatsuo Izawa
Keyword(s):  
Single Mode ◽  
Low Loss ◽  
Single Mode Fibre ◽  
Mode Fibre

Low-loss single-mode-fibre splicing technique using core direct monitoring

1983 ◽  
Vol 19 (24) ◽  
pp. 1048 ◽  
Author(s):  
O. Kawata ◽  
K. Hoshino ◽  
K. Ishihara
Keyword(s):  
Single Mode ◽  
Low Loss ◽  
Single Mode Fibre ◽  
Mode Fibre

scholarly journals Low-loss single-mode hybrid-lattice hollow-core photonic-crystal fibre

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Foued Amrani ◽  
Jonas H. Osório ◽  
Frédéric Delahaye ◽  
Fabio Giovanardi ◽  
Luca Vincetti ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Single Mode ◽  
Confinement Loss ◽  
Hollow Core ◽  
Low Loss ◽  
Fibre Optics ◽  
Photonic Crystal Fibre ◽  
Single Mode Operation ◽  
Mode Operation ◽  
Beam Delivery

AbstractRemarkable recent demonstrations of ultra-low-loss inhibited-coupling (IC) hollow-core photonic-crystal fibres (HCPCFs) established them as serious candidates for next-generation long-haul fibre optics systems. A hindrance to this prospect and also to short-haul applications such as micromachining, where stable and high-quality beam delivery is needed, is the difficulty in designing and fabricating an IC-guiding fibre that combines ultra-low loss, truly robust single-modeness, and polarisation-maintaining operation. The design solutions proposed to date require a trade-off between low loss and truly single-modeness. Here, we propose a novel IC-HCPCF for achieving low-loss and effective single-mode operation. The fibre is endowed with a hybrid cladding composed of a Kagome-tubular lattice (HKT). This new concept of a microstructured cladding allows us to significantly reduce the confinement loss and, at the same time, preserve truly robust single-mode operation. Experimental results show an HKT-IC-HCPCF with a minimum loss of 1.6 dB/km at 1050 nm and a higher-order mode extinction ratio as high as 47.0 dB for a 10 m long fibre. The robustness of the fibre single-modeness is tested by moving the fibre and varying the coupling conditions. The design proposed herein opens a new route for the development of HCPCFs that combine robust ultra-low-loss transmission and single-mode beam delivery and provides new insight into IC guidance.

scholarly journals Strain Sensor from Tapered Fibres

2020 ◽  
Vol 238 ◽  
pp. 08004
Author(s):  
Celaschi Sergio ◽  
Guerra Christiano P. ◽  
Biazoli Claudecir ◽  
Cordeiro Cristiano B. ◽  
Grégoire Nicolas
Keyword(s):  
Transmission Loss ◽  
Strain Sensor ◽  
Optical Power ◽  
Single Mode ◽  
Zehnder Interferometer ◽  
Single Mode Fibre ◽  
Optical Strain ◽  
Micrometer Scale ◽  
Mode Fibre ◽  
Nm Range

A new all fibre, and low transmission loss, digital optical strain sensor is proposed. This sensor behaves as a Coaxial Mach-Zehnder interferometer. Special depressed cladding single-mode fibre DCF was tapered down to the micrometer scale presenting FSR in the nm range. The sensor is modelled to probe up to ± 0.2% strain when under expansive or compression stresses, returning 20 optical Power Transfer Turning Points (PTTP) at 1575 nm transmitted wavelength.

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