摘要:
A method for manufacturing a plurality of light sources is provided with a low cost to economically construct a passive optical subscriber network of a wavelength division multiplexing method using a wavelength division multiplexing and demultiplexing device. More specifically, disclosed is a method for manufacturing a plurality of light sources with a low cost applying a planar lightwave circuit (PLC) hybrid integrated technology to a PLC chip as a method for constructing a light source with a plurality of wavelengths constituting an optical transmitter of a base station to economically construct a passive optical subscriber network of a wavelength division multiplexing method.
摘要:
Disclosed is a transmitter optical module which includes a first package generating an optical signal; a second package bonded with the first package by using chip-to-chip bonding, having a silicon optical circuit platform structure, and amplifying the optical signal; and an optical waveguide forming a transmission path of the optical signal from the first package to the second package.
摘要:
Disclosed is a transmitter optical module which includes an electro-absorption modulated laser modulating a light into an optical signal through a high-frequency electrical signal; a first sub-mount transferring the high-frequency signal to the electro-absorption modulated laser; and a second sub-mount receiving the high-frequency signal from the electro-absorption modulated laser to terminate the electro-absorption modulated laser. A length of a first wire connecting the first sub-mount and the electro-absorption modulated laser is different from a length of a second wire connecting the second sub-mount and the electro-absorption modulated laser.
摘要:
Provided is a multichannel transmitter optical module which includes a plurality of light source units configured to generate light, a plurality of an electro-absorption modulators (EAMs) configured to modulate the generated light to an optical signal through a radio frequency (RF) signal, a plurality of RF transmission lines configured to apply the RF signal to the EAMs, and a combiner configured to combine the modulated optical signal. The RF transmission lines are connected to the EAMs in a traveling wave (TW) electrode manner. The multichannel transmitter optical module has alleviated crosstalk and is compactly integrated to have a small size.
摘要:
Provided is an optical communication device including optical switches. The optical communication device a first multi-mode core disposed on a substrate, the first multi-mode core extending in a first direction and second multi-mode cores disposed on a substrate, the second multi-mode cores parallelly extending in a second direction non-parallel to the first direction to intersect the first multi-mode core. The heaters respectively intersect intersectional regions between the first and second multi-mode cores.
摘要:
Provided is a wavelength selective switch. The wavelength selective switch includes a first wavelength division multiplexer, an M number of optical switches, an (M+N−1) number of optical combiners, and a second wavelength division multiplexer. The first wavelength division multiplexer receives optical signals of an M number of wavelength channels to divide the received optical signals according to each channel, thereby outputting the divided optical signals. The M number of optical switches changes a path of on an optical signal outputted by an M number of wavelength channels from the first wavelength division multiplexer into one of an N number of output ports. The (M+N−1) number of optical combiners is respectively connected to the N number of output ports of the optical switches. The (M+N−1) number of optical combiners couple the N number of inputted optical signals to one output port. The second wavelength division multiplexer has an (M+N−1) number of input ports and an N number of output ports. The (M+N−1) number of output signals of the optical combiners is connected to the input ports, respectively, and the inputted signals are multiplexed to output the multiplexed signals from any of the N number of output ports.
摘要:
Provided are an optical switch device having a simple light path and capable of achieving high speed switching, and a method of manufacturing the optical switch device. The optical switch device comprises one or more first optical waveguides extending in a first direction, one or more second optical waveguides connected to the first optical waveguides in a second direction crossing the first direction, and one or more switching parts configured to control light transmitted in the first direction within the first optical waveguide connected with the second waveguide, to selectively reflect the light to the second waveguide extending in the second direction.
摘要:
An optical matrix switch includes connection optical waveguides, a 2×2 optical switch including two straight optical waveguides which are parallel to each other, two crossing optical waveguides which connects the insides of the straight optical waveguides and mutually intersects in an X shape, and electrodes which are disposed on portions where the straight optical waveguide and the crossing optical waveguide are connected. The connection optical waveguides include a straight connection optical waveguide which connects one of the straight optical waveguides of one of the 2×2 optical switches in one column and a straight optical waveguide of a 2×2 optical switch in the same row of an adjacent column, and a crossing connection optical waveguide which connects the other of the straight optical waveguides with a straight optical waveguide of 2×2 optical switch in the other row of an adjacent column
摘要:
Disclosed is a transmitter optical module which includes an electro-absorption modulated laser modulating a light into an optical signal through a high-frequency electrical signal; a first sub-mount transferring the high-frequency signal to the electro-absorption modulated laser; and a second sub-mount receiving the high-frequency signal from the electro-absorption modulated laser to terminate the electro-absorption modulated laser. A length of a first wire connecting the first sub-mount and the electro-absorption modulated laser is different from a length of a second wire connecting the second sub-mount and the electro-absorption modulated laser.
摘要:
The inventive concept provides optical switch devices and methods of manufacturing the same. The optical switch device may include a substrate including a first region and a second region, a first multi-mode optical waveguide disposed on the substrate of the first region, an electrode wire disposed on the substrate of the second region, a heater disposed on a top surface of the first multi-mode optical waveguide, and connection wires connecting the heater to the electrode wire. The first multi-mode optical waveguide may have incline sidewalls, and the connection wires may be disposed on the incline sidewalls of the first multi-mode optical waveguide.