Injector Laser
AssigneeGeneral Nano Optics Limited
InventorVasily Ivanovich Shveykin
Life of this patent
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Abstract
Injection radiators are used for pumping solid-state and fibre lasers and amplifiers used for producing medical devices, laser production equipment, lasers generating a double-frequency radiation and in the form of highly efficient general-purpose solid-state radiation sources used in a given waveband, including white light emitters used for illumination. Said invention also relates to superpower highly-efficient and reliable injection surface-emitting lasers, which generate radiation in the form of a plurality of output beams and which are characterised by a novel original and efficient method for emitting the radiation through the external surfaces thereof.
Claims11
The injection laser including the laser heterostructure containing at least the active layer consisting of at least one sublayer and also the edge facets, the longitudinal amplification axis, the optical resonator, the metallization layers consisting at least one sublayer wherein in the said heterostructure in the direction of the said longitudinal amplification axis at least one sequence is placed, consisting of alternating at least one amplification region consisting of at least one subregion and at least one output region consisting of at least one subregion, in the said output region together with layers of the said laser heterostructure there is a semiconducting layer for leak-in of emission raising above the said amplification region and consisting of at least one sublayer, every said output region is restricted on its opposite sides in the direction of the said longitudinal amplification axis by the output facets located under certain linear angles of inclination α1 and α2, correspondingly with respect to the external surface of the said amplification region, and the ratio of the refraction index nIN of the said leak-in layer to the effective refraction index neff of the said heterostructure with the said leak-in layer included into it is equal to the number which is greater than one.
Dependencies are inferred from the claim text.