doped fibre
Thulium-doped fibre laser in the 2 μm wavelength region for gas sensing
... (Er)-doped fibre laser operating at ...active fibre, (b) a FBG pair at ...Tm-doped fibre laser, designed for lasing at ...Tm-doped fibre laser at 1.995 µm consisted of a ...
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High power cladding pumped Raman and erbium ytterbium doped fibre sources
... of fibre laser sources has started only recently with the development and improvement of double-clad fibres and the power increase from diode pump ...pumped fibre lasers and amplifiers have attracted a ...
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Compact Tm-doped fibre laser pumped by a 1600 nm Er-doped fibre laser designed for environmental gas sensing
... Citation: Yao, S., Chen, S., Pal, A., Bremer, K., Guan, B. O., Sun, T. and Grattan, K. T. V. (2015). Compact Tm-doped fibre laser pumped by a 1600 nm Er-doped fibre laser designed for ...
6
Compact Tm-doped fibre laser pumped by a 1600 nm Er-doped fibre laser designed for environmental gas sensing
... Each grating pair was used to form the cavity to create a laser system pumped initially by one 980 nm LD using three types of Er-doped fibres with optimized lengths. The results obtained were noted and ...
11
Laser cutting, wood, Yb-doped fibre laser.
... [21], but the beam quality is superior. These favourable characteristics of the fibre laser open the possibility of exploring laser cutting of wood and other organic materials which are located at large distances ...
6
Lifetime quenching in Yb doped fibres
... of fibre 6 was irradiated with 488nm light from an argon ion laser, some very weak broad-band fluorescence between about 575nm and 780nm has been observed; this may be caused by Ge-O defects ...that fibre 5 ...
6
High power two micron fibre bulk hybrid lasers
... Tm-doped fibre lasers would be affected by using ultra high-power (>300W) low brightness pump sources, and to consider ways to increase the effective numerical aperture of the inner-cladding pump guide ...
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MEASUREMENT OF WINDOW GLASS TEMPERATURE WITH A FLUORESCENCE INTENSITY RATIO OPTICAL FIBRE SENSOR
... the fibre connectors was minimised as described in the previous ...spliced doped fibre) were performed on the FIR sensor on different ...the fibre was subject to drift; this was particularly ...
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2 Cascaded EDFA's Optimization For WDM System
... Erbium Doped Fiber Amplifier’s (EDFA) is a main element of Gain and fibre loss of Noise Figure in single stage of EDFA in realising a good point-to-point fibre optical communication links and optical ...
24
Photon energy response of silicon dioxide fibre optic and TLD 100 using Monte Carlo simulation
... irradiated fibre optic is depends on the type of fibre and by the radiation parameters [Hashim, ...the fibre could give different outcome in the fibre optic performance as TL ...based ...
19
Sensors for Harsh Environment: Radiation Resistant FBG Sensor System
... (Ge)-doped fibre using UV exposure, can be quite radiation insensitive, without altering their strain/temperature ...of fibre composition and manufacturing parameters on the radia- tion sensitivity ...
7
HDWDM upgrade of CATV fibre coax networks for broadband interactive services
... wavelength is -8 dBm at headend interface A and ONU interface D; the received power at A and D is -16 dBm. The analogue CATV signal is positioned in the 1550-1560 nm range, the optimum range for low-noise, high-power ...
7
Development, characterisation and analysis of narrow linewidth, single frequency DFB fibre lasers in the 1 5 µm 2 µm region
... a fibre length of 19-m in a Er 3+ -doped fibre amplifier ...-doped fibre with Yb 3+ ...-doped fibre [4]. However, for efficient Er 3+ -Yb 3+ -doped devices, fibres ...
176
Studies of gain and lasing in thulium doped fibres
... a fibre are naturally lower than in a crystal, especially for fibre designed in order to be used as an amplification ...the doped fibre a rather dilute system. If the fibre is short, ...
152
Wideband Optical Amplifier Using High Concentration Erbium Doped Fiber In Single-Pass Configuration
... Erbium Doped Fibre ...Erbium Doped Fibre amplifier at different pumping ...the fibre that is to be used in the amplifier will also need to be reduced to reduce the cost needed for the ...
24
Frequency resolved optical gating in periodically poled lithium niobate waveguide devices
... a fibre polarisation controller (FPC) was necessary prior to ...employing fibre butt-coupling at the waveguide input/output, and found similar results to this ...
150
ASSESSMENT OF THERMOLUMINESCENCE GLOW CURVES AND KINETIC PARAMETERS OF FABRICATED GE-DOPED FLAT FIBER FOR RADIOTHERAPY APPLICATION
... optical fibre sensor technology have led to a renewed interest in dosimeter for radiation ...optical fibre possesses thermoluminescence (TL) characteristics as the famous phosphor-based ...
14
Response of Fabricated Germanium Optical Fibre Subjected to Low Dose Neutron-Gamma Irradiation
... In conclusion, the preliminary results have shown that fabricated optical fibres (cylindrical and flat optical fibre) have a good response to low dose neutron-gamma irradiation. Future study will be carried out in ...
8
Detailed Investigation of Phenomenon “MIXED ALKALI EFFECT” by Doping Alkali Ions with different Cationic Sizes with Equal Molar Concentration in Borate Glasses An Ultrasonic Study at 10 MHz and Explanation by “Random Network Model”
... The B2O3 is a high glass former and different alkali ions or alkaline metal ions or transition metal ions can be easily doped in it, affecting its mechanical and optical properties. is high [6]. The enhancement of ...
7
Modified chalcogenide glasses for optical device applications
... bismuth doped GLS which, like vanadium doped GLS detailed in chapter 4, may have applications as active optical devices because they display strong infrared ...Ni doped glasses are scarce in the ...
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