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Interference coatings on laser amplifiers
Oulehla, Jindřich
This contribution deals with the technology used for designing and producing interference coatings on materials used for manufacturing laser amplifiers. These coatings must not only meet the optical performance requirements but also others. For example they must be able to withstand cryogenic cooling, high laser beam fluence, etc.
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Generation of exact lengths by the use of optical comb
Šmíd, Radek
We present a method genaration of precise length using optical frequency comb stabilized to atomic reference clock. Optical frequency comb are able to tranfer the exact time stability from atomic clock reference to optical path measurement. We used Fabry-Perot cavity with ultra-low expansion material placed into the vacuum chamber. The exact length of Fabry-Perot cavity in vacuum is used as a reference for measurement of refractive index of ambient air.
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Laser interferometry with optical fibers and fiber Bragg gratings
Mikel, Břetislav
Optical fibers and fiber Bragg grating can improve using of standard laser interferometry methods in industry applications. Especially fiber Bragg gratings can improve frequency parameters of laser diodes in the laser interferometers. These parameters increase resolution and measurement range of the laser interferometer.
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