Summarizer Online Demo

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High power laser array with stable wavelength
 
The present invention is related to semiconductor diode lasers and more specifically to diode lasers for solid state laser pumping . It is an advantage of the present invention to provide a diode laser and an array of such diode lasers which are temperature stabilized to assure stability of the emission center frequency for the purpose of pumping a solid state laser .

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Apparatus for investigating a sample with ultrasound
 
The present invention relates to an apparatus for investigating a sample with ultrasound . The advantage of this system is that adjustment of the delay time permits the focus of the phased array to be varied e.g. to different depths in the sample .

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Method of forming a grating in an optical waveguide
 
Thus a first aspect of the invention is a method for side writing a Bragg grating in an optical waveguide . A second aspect of the invention is an apparatus for side writing a Bragg grating on an optical waveguide fiber , wherein the apparatus is adjustable so as to produce gratings effective over a range of wavelengths , i.e. , gratings having a preselected period .

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