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Showing 1 to 7 of 7 for “"ZBLAN"”.
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Two micron Tm doped ZBLAN double clad fibre laser.
Tm:ZBLAN fibre lasers have potential applications in many research areas, such as eye safe range detection, medical science and materials processing. In this thesis we investigate improving the laser performance of a thulium doped fluoride fibre (specifically ZBLAN) to generate laser output with …
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Understanding the Role of Gravity in the Crystallization Suppression of ZBLAN Glass
Fluorozirconate glasses, such as ZBLAN (ZrF4-BaF2-LaF3-AlF3-NaF), have the potential for optical transmission from 0.3 μm in the UV to 7 μm in the IR region. However, crystallites formed during the fiber drawing process prevent this glass from achieving its low loss-capability. Other researchers …
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Characterisation of optical fibre amplifiers: amplifiers for the 632.8 nm He-Ne wavelength in praseodymium-doped ZBLAN
An investigation of small-signal amplification on the 3Po-3F2 transition in a praseodymium-doped fluorozirconate optical fibre at the 632.8 nm He-Ne wavelength, has been conducted. The optical gain is fundamentally related to the spectroscopic characteristics of praseodymium-doped in a …
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Determining rare earth dopant concentrations in optical fibres and waveguides
… lifetime of the lifetime of praseodymium-doped ZBLAN fibre increased linearly with praseodymium concentration. These results showed promise in the use of fluourescence lifetimes as a method for determining both the absolute concentration as well as imaging the concentration profile using …
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Technology development targets for commercial In-Space Manufacturing
… Of the Earth-return concepts considered, ISM of ZBLAN optical fiber appears most promising with an allowable facility cost of $1.35B based on just 125 kg produced over a five year period at its sale price of $11M/kg. The commercial viability of ISM of ZBLAN is relatively insensitive to launch …
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Laser (Cooling) Refrigeration in Erbium Based Solid State Materials
… has been focused on the use of ytterbium based ZBLAN glass. Some experiments have also reported cooling in thulium based solid state materials but with considerably less success. We proposed that erbium had many attractive features compared to ytterbium and therefore should be tried for cooling. …
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Erzeugung von periodischen Subwellenlängen-Strukturen und Wellenleitern in Dielektrika mit Laserstrahlung ultrakurzer Pulsdauer
… 0,55, width 100µm in a 1µm thick thin film of Er:ZBLAN on magnesium fluoride) are demonstrated. Due to ripples the orientation of the polarisation is essential. The achieved smoothness of the edges is 100-300nm at a grove depth up to 1.8µm. A damping below 5dB/cm is demonstrated and the …