Abstract:
Disclosed is a device which constitutes a photonic phased array antenna. The device includes at least one light source, an optical power distributor configured to distribute a light wave generating from the light source, a phase controller configured to a phase of the light wave, and a light wave radiator configured to radiate the light wave into a space based on the controlled phase. Optical waveguides are connected between the light source and the optical power distributer, between the optical power distributor and the phase controller and between the phase controller and the light wave radiator, respectively.
Abstract:
A waveguide of a 3D interconnection structure and an optical data bus system of a 3D interconnection structure using the same are provided. The waveguide includes a main waveguide which is formed in a predetermined direction and at least one branch waveguide which connects to the main waveguide to form a predetermined angle, wherein the at least one branch waveguide branches an optical signal, which is propagated in the main waveguide, at a predetermined rate.
Abstract:
In accordance with the present invention, there is provided an optical path-changing device having one or more curved waveguides, which not only can change an optical path at a large angle close to a perpendicular direction after light or an optical signal has been incident and reflected, but also can change the optical path in various directions, such as for straight pass, left turn, and right turn. An optical path-changing device having one or more curved waveguides according to an embodiment of the present invention includes a first waveguide (11) formed in a straight line. A second waveguide (12) is configured to branch from the first waveguide in a first direction and formed in a shape of curved line. A first reflector (21) is arranged in a region in which the second waveguide branches from the first waveguide.
Abstract:
In accordance with an optical modulator using waveguides of the present invention, the reflection phenomenon of light is used, so that the optical modulator is neither sensitive to the wavelength, mode, polarization, intensity, beam size, etc. of light, nor sensitive to the temperature, the waveguide size, the uniformity of a refractive index, carrier doping concentration, changes in control voltage/current, etc., thus obtaining stable optical modulation characteristics. An optical modulator using waveguides includes a first waveguide (11) configured to allow an optical signal to be incident thereon, and formed in a direction identical to that of the incident optical signal. A second waveguide (12) is formed to branch from the first waveguide in a first direction. A reflector (13) is arranged in a region in which the second waveguide branches from the first waveguide. A controller (14) is configured to control a refractive index of the reflector.
Abstract:
A photonic radiator device forming a photonic phased array antenna includes a light waveguide including a waveguide clad and a waveguide core using a semiconductor material, and a grating periodically formed an upper or lower part of the light waveguide. The photonic radiator device receives an input light wave in a direction of the grating and the light waveguide and radiates an output light wave to a space by using scattering from the grating.
Abstract:
Disclosed is a device which constitutes a photonic phased array antenna. The device includes at least one light source, an optical power distributor configured to distribute a light wave generating from the light source, a phase controller configured a phase of the light wave, and a light wave radiator configured to radiate the light wave into a space based on the controlled phase. Optical waveguides are connected between the light source and the optical power distributor, between the optical power distributor and the phase controller and between the phase controller and the light wave radiator, respectively.
Abstract:
In accordance with the present invention, there is provided an optical path-changing device having one or more curved waveguides, which not only can change an optical path at a large angle close to a perpendicular direction after light or an optical signal has been incident and reflected, but also can change the optical path in various directions, such as for straight pass, left turn, and right turn. An optical path-changing device having one or more curved waveguides according to an embodiment of the present invention includes a first waveguide (11) formed in a straight line. A second waveguide (12) is configured to branch from the first waveguide in a first direction and formed in a shape of curved line. A first reflector (21) is arranged in a region in which the second waveguide branches from the first waveguide.
Abstract:
A chip packaging method using a hydrophobic surface includes forming superhydrophobic surfaces forming hydrophilic surfaces on predetermined positions of the superhydrophobic surfaces formed on the one of a first chip or the first board and the one of a second chip or a second board, respectively, generating liquid metal balls on the hydrophilic surfaces formed on the one of the first chip or the first board and the one of the second chip or the second board, respectively, and packaging the one of the first chip or the first board and the one of the second chip or the second board by combing the liquid metal ball of the one of the first chip or the first board and the liquid metal ball of the one of the second chip or the second board with each other.
Abstract:
Optical refraction and reflection control can be achieved by means of semiconductor silicon which has a p-n junction structure and a waveguide structure. According to the optical device using semiconductors of the present invention, the amplitude of light can be directly modulated using the reflection or refraction control. The optical device according to the preferred embodiment of the present invention includes: a first waveguide on which an optical signal is incident, and which is formed in the same direction as that of the incident optical signal; a second waveguide that forms a fixed angle with the first waveguide; and a reflector which is capable of selecting a path of the optical signal to the first waveguide or to the second waveguide as a refractive index is changed according to an applied voltage, and which is formed to have a fixed angle of inclination with respect to the first waveguide.