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OPTICAL ELEMENT FOR FREE-SPACE PROPAGATION BETWEEN AN OPTICAL WAVEGUIDE AND ANOTHER OPTICAL WAVEGUIDE, COMPONENT, OR DEVICE
OPTICAL ELEMENT FOR FREE-SPACE PROPAGATION BETWEEN AN OPTICAL WAVEGUIDE AND ANOTHER OPTICAL WAVEGUIDE, COMPONENT, OR DEVICE
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机译:光学波导和另一种光学波导,组件或设备之间自由空间传播的光学元素
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摘要
An optical element comprises a substantially transparent material having opposing first and second transmission surfaces and a substantially flat mounting surface between them, an alignment mark, and an optical coating. The optical element is mounted self-supporting on a substrate with the mounting surface on a mating portion thereof. With the alignment mark aligned to a corresponding mark on the substrate, waveguides on the substrate can be end-coupled by reflection from the first transmission surface. The transmission and mounting surfaces are arranged to position the transmission surfaces at respective orientations relative to the substrate surface so that an optical beam propagating substantially parallel to the substrate surface and entering the optical element through the first transmission surface propagates as an optical beam through the optical element above the mounting surface and exits the optical element through the second transmission surface. The optical element can further include a lens or an aperture.
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