摘要:
A wavelength selective switch is provided with a multiplexer such that both colourless (wavelength non-specific) and coloured (wavelength specific) ports are available. A waveguide device is employed with dispersive elements having different characteristics to realize the colourless and coloured ports within one waveguide device.
摘要:
The present invention provides silicon based thin-film structures that can be used to form high frequency optical modulators. Devices of the invention are formed as layered structures that have a thin-film dielectric layer (18), such as silicon dioxide, sandwiched between silicon layers (16, 20). The silicon layers (16, 20) have high free carrier mobility. In one aspect of the invention a high mobility silicon layer (20) can be provided by crystallizing an amorphous silicon layer. In another aspect of the invention, a high mobility silicon layer (20) can be provided by using selective epitaxial growth and extended lateral overgrowth thereof.
摘要:
The invention relates to An electro-optic Mach-Zehnder modulator arrangement, comprising a plurality of first waveguide electrodes (210) and a plurality of second waveguide electrodes (220) arranged on top of capacitive segments (1110, 1210) of the first and the second optical waveguide (11, 12); a plurality of driver units (410) for supplying a voltage (V) to the electrode arrangement (2), each one of the driver unit (410) comprising at least a first output port (4410) coupled to one of the first waveguide electrodes (210) and a second output port (4420) coupled to one of the second waveguide electrodes (220); a non-grounded conductive region (30) via which the capacitive segment (1110) of the first optical waveguide (11) is connected to the capacitive segment (1210) of the second optical waveguide (12); and a DC-source (6) connected to the first and/or the second waveguide electrodes (210, 220) and the conductive region (30) for supplying a bias voltage (V bias ) across the capacitive segments (1110, 1210) of the optical waveguides (11, 12). According to the invention, each one of the driver units (41) is configured to supply a first varying signal (S+) to the first waveguide electrode (21) via the first output port (441) and to supply a second varying signal (S-) to the second waveguide electrode (22) via the second output port (442), wherein each one of the driver units (410) is a differential driver unit assigned to one first waveguide electrode (210) and one second waveguide electrode (220), and wherein the DC-source (6) is connected to the conductive region (30) and ground.
摘要:
A method for a color search is disclosed. The method may be implemented by a user device terminal. The method may comprise sending a color search request and corresponding color encoding information to a network device, and receiving search result information that matches the color encoding information and that is returned by the network device based on the color search request.
摘要:
Disclosed are an optical member, a display device including the same, and a method of fabricating the same. The optical member includes a first substrate; a wavelength conversion layer on the first substrate; and a second substrate on the wavelength conversion layer, wherein the wavelength conversion layer includes an oxygen barrier.
摘要:
A method for a color search is disclosed. The method may be implemented by a user device terminal. The method may comprise sending a color search request and corresponding color encoding information to a network device, and receiving search result information that matches the color encoding information and that is returned by the network device based on the color search request.
摘要:
The present disclosure provides engineered surfaces that exhibit reduced specular reflection and gloss while still providing a high intensity of reflected light at multiple incident angles. The structured metal surfaces include engineered topography that increases diffuse reflection, leading to a greater intensity of light perceived at multiple viewing angles. A viewer engaging such surfaces is likely to perceive a stronger ‘white’ reflection of the incident light and an improvement, particularly in orthodontic and other oral applications, of aesthetic appearance. Methods of creating the engineered surfaces and orthodontic articles incorporating the engineered surfaces are also disclosed.