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DEVICE FOR THE EMISSION OF ARBITRARY OPTICAL BEAM PROFILES FROM WAVEGUIDES INTO TWO-DIMENSIONAL SPACE
DEVICE FOR THE EMISSION OF ARBITRARY OPTICAL BEAM PROFILES FROM WAVEGUIDES INTO TWO-DIMENSIONAL SPACE
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机译：从波导到二维空间的任意光束轮廓发射的装置
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摘要
An optical coupler device (100) comprises an optical waveguide (120) having a first edge (122) and an opposing second edge (124) that extend in a direction substantially parallel to a propagation direction (x-axis) of an input light beam injected into the optical waveguide (120). A grating structure (130) is on a portion of the optical waveguide (120), with the grating structure (130) having a first side and an opposing second side. The first and second sides of the grating structure (130) extend in the same direction as the first and second edges (122, 124) of the optical waveguide (120). An optical slab (140) adjoins with the first side of the grating structure (130) and is in optical communication with an output of the grating structure (130). The grating structure (130) includes an array of grating lines (132) configured to diffract the input light beam (150) into the slab (140) at an angle with respect to the propagation direction, such that a diffracted light beam (152) is output from the slab (140).
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