Abstract: The present invention provides a fiber Bragg Grating sequential writing method with real-time optical fiber position monitoring, characterized in that the relative phase between a fiber grating and a writing interference beam at each positioning point is determined by an interferometric side-diffraction method, and writing is sequentially performed. Accuracy in fabricating a long and complex fiber grating structure can be increased by decreasing or avoiding accumulative errors caused by long-term scan of monitoring optical fiber position, or by a means for fabricating a wanted reference fiber Bragg grating with similar settings.

Abstract: An exemplary liquid crystal display includes two substrates (21, 22) opposite to each other and spaced apart a predetermined distance, each of the substrates having an alignment layer (211, 221); a liquid crystal layer (23) between the two substrates, and having a plurality of liquid crystal molecules; and a plurality of gate lines (241) formed between one alignment layer and one substrate. The two alignment layers have two orthogonal aligning directions, one aligning direction of the two alignment layers being parallel to an extending direction of the gate lines.

Abstract: The present invention provides a fiber Bragg Grating sequential writing method with real-time optical fiber position monitoring, characterized in that the relative phase between a fiber grating and a writing interference beam at each positioning point is determined by an interferometric side-diffraction method, and writing is sequentially performed. Accuracy in fabricating a long and complex fiber grating structure can be increased by decreasing or avoiding accumulative errors caused by long-term scan of monitoring optical fiber position, or by a means for fabricating a wanted reference fiber Bragg grating with similar settings.

Abstract: A multi-layer chopping board includes a main body having a plurality of regular planks and a reinforced plank stacked upon another, and a cover layer sheathed on a peripheral side of the main body to couple the planks. The reinforced plank is made of a material more inflexible than that of each regular plank. The cover layer is made of a material different from that of any of the planks.

Abstract: A chopping board includes a main body having a plurality of planks stacked one by one, and a cover layer coated on a periphery of the main body to couple the planks. The planks and the cover layer are made of different materials and the cover layer is softer than the main body.