penance
发表于 2025-3-26 21:09:24
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助记
发表于 2025-3-27 03:14:45
Introduction,st ever since the early 1960’s, when the development of the laser first provided a stable source of coherent light for such applications. Laser beams can be transmitted through the air, but atmospheric variations cause undesirable changes in the optical characteristics of the path from day to day, a
基因组
发表于 2025-3-27 06:43:08
Optical Waveguide Modes,s in an electrical integrated circuit. However, unlike electrical current that flows through a metal strip according to Ohm’s law, optical waves travel in the waveguide in distinct optical modes. A mode, in this sense, is a spatial distribution of optical energy in one or more dimensions. In this ch
性冷淡
发表于 2025-3-27 11:04:52
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Conducive
发表于 2025-3-27 16:30:18
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基因组
发表于 2025-3-27 21:48:09
Losses in Optical Waveguides, as to which modes propagate, the next most important characteristic of a waveguide is the attenuation, or loss, that a light wave experiences as it travels through the guide. This loss is generally attributable to three different mechanisms: scattering, absorption and radiation. Scattering loss usu
Trabeculoplasty
发表于 2025-3-28 01:21:28
Waveguide Input and Output Couplers,e detail the various coupling techniques that can be used. The methods that are employed for coupling an optical beam between two waveguides are different from those used for coupling an optical beam in free space to a waveguide. Also, some couplers selectively couple energy to a given waveguide mod
教育学
发表于 2025-3-28 04:10:42
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安心地散步
发表于 2025-3-28 09:07:29
Electro-Optic Modulators,switch, depending on the strength of the interaction between the optical waves and the controlling electrical signal, as well as on the arrangement of input and output ports. The device is considered to be a modulator if its primary function is to impress information on a light wave by temporaly var
有限
发表于 2025-3-28 11:01:04
Basic Principles of Light Emission in Semiconductors,their convenience, gas lasers are frequently used in the laboratory to evaluate waveguides or other integrated-optic devices; however, semiconductor lasers and light-emitting diodes are the only practical light sources for use in optical integrated circuits, due to their small size and compatibility