摘要:
Provided is a resonant cascaded difference frequency generator that is capable of improving the conversion efficiency of the second-order nonlinear optical phenomena by resonating the second harmonic wave of a pump light. The resonant cascaded difference frequency generator includes: a nonlinear medium, which receives a pump light and a signal light and then generates the second harmonic wave of the pump light through second harmonic generation, in a cascaded way generates a converted light of a difference frequency through difference frequency generation between the signal light and the second harmonic wave; and a resonant structure that resonates the second harmonic wave of the pump light on the basis of the nonlinear medium.
摘要:
Provided is a tunable waveguide Bragg grating device, which includes: a waveguide through which incident light can travel; a Bragg grating formed in at least one region of the waveguide; and at least one thermal tuning unit formed at a position displaced from the central line of a waveguide core along the length direction of the waveguide core. Accordingly, it is possible to tune a reflection wavelength band and a group delay characteristic of the waveguide Bragg grating device in a variety of ways. It is also possible to manufacture a multiple channel tunable waveguide Bragg grating device with ease by applying an array arrangement, which is advantageous in constructing an integrated optical module.
摘要:
The present invention relates to a method of determining a quasi-phase matching efficiency in a periodically poled structure of an optical waveguide, a periodically poled structure of an optical waveguide, and an optical waveguide using the same. It is possible to effectively perform a quasi-phase matching when a width of periodic electrodes is shorter than a coherence length generally used as ½ of a quasi-phase matching period.
摘要:
Provided is an optical device having an optical waveguide including an organic Bragg grating sheet. The optical device includes a cladding layer, and an optical waveguide. The cladding layer is formed on a substrate, and the optical waveguide is formed within the cladding layer. The optical waveguide includes a core layer and an organic Bragg grating sheet located within the core layer. The organic Bragg grating sheet has a refractive index higher than that of the core layer to reflect or transmit light having a predetermined wavelength. Accordingly, light propagates through the optical waveguide with high reflectance and low loss. Besides, a high performance tunable wavelength filter or tunable dispersion compensator may be constructed by forming a thermal electrode on the optical waveguide, forming a tapered optical waveguide, or forming a chirped organic Bragg grating sheet in the middle of the core layer of the optical waveguide.
摘要:
An organic-inorganic hybrid nanocomposite thin film for a high-powered and/or broadband photonic device having an organic ligand-coordinated semiconductor quantum dot layer, a photonic device having the same, and a method of fabricating the same are provided. The organic-inorganic hybrid nanocomposite thin film is composed of a stack structure comprising a polymer layer and an organic ligand-coordinated semiconductor quantum dot layer self-assembled on the polymer layer, or composed of a first composite thin film comprising a first polymer layer pattern having a first hole, and an organic ligand-coordinated first semiconductor quantum dot layer pattern filling the first hole. The organic-inorganic hybrid nanocomposite thin film may be formed by spin-coating a semiconductor quantum dot solution and a polymer solution alternately to be stacked by one layer so as to form a multi-layered organic thin film composed of a plurality of layers. The hybrid nanocomposite thin film for a photonic device may be provided by physically coupling a high concentration and broadband semiconductor quantum dot layer and a polymer layer so as to realize a photonic device with high power, broadband, high brightness, and high sensibility, and a flexible photonic device may be also provided.
摘要:
An opto-electronic connector module includes an optical waveguide portion including an optical waveguide in which an optical signal is transmitted, and a connector portion coupled to the optical waveguide portion, fixing the optical waveguide portion on a PCB on which a semiconductor chip portion having an opto-electronic device and a semiconductor chip is surface-mounted, and having a first coupling portion having a convex or concave structure formed in a lower portion thereof. The first coupling portion of the connector portion is coupled to a second coupling portion having a concave or convex structure formed on an upper surface of the PCB.
摘要:
Provided is an optical wiring module. The optical wiring module includes a light source mounted on a surface of a substrate, a metal optical waveguide coupled to a transverse magnetic mode of light emitted from the light source and using a long-range surface palsmon polariton, and a photodetector. The optical wiring module has a simple structure enabling it to be further miniaturized and its yield to be increased.
摘要:
Provided is an optical wiring module. The optical wiring module includes a light source mounted on a surface of a substrate, a metal optical waveguide coupled to a transverse magnetic mode of light emitted from the light source and using a long-range surface palsmon polariton, and a photodetector. The optical wiring module has a simple structure enabling it to be further miniaturized and its yield to be increased.
摘要:
Provided is a flexible light system including: a light source unit generating a desired optical signal to output; a control unit controlling the optical signal generated from the light source unit; and a panel unit configured of a film having an optical light waveguide combined with the light source unit and transmitting the optical signal generated from the light source unit to a predetermined position and an output terminal outputting the optical signal transmitted through the light waveguide. The flexible light system includes only manual units, such as light waveguides and output terminals, without active elements, in the film of a panel unit, by disposing all driving units outside the panel unit, separate from an optical output panel unit, such that it is possible to implement a roll-type display or a lighting system by using a substrate having flexibility and long-term durability for the film of the panel unit.
摘要:
An opto-electronic connector module includes an optical waveguide portion including an optical waveguide in which an optical signal is transmitted, and a connector portion coupled to the optical waveguide portion, fixing the optical waveguide portion on a PCB on which a semiconductor chip portion having an opto-electronic device and a semiconductor chip is surface-mounted, and having a first coupling portion having a convex or concave structure formed in a lower portion thereof. The first coupling portion of the connector portion is coupled to a second coupling portion having a concave or convex structure formed on an upper surface of the PCB.