Abstract: The present invention provides an optical signal processing device with a transponder aggregator function by which theoretical loss is not increased even if the number of necessary transponders is increased. Optical signals inputted from input ports are inputted to a PLC. The PLC has SBTs. The input ports are connected to the input-end SBT, and a plane wave is outputted from an output end of the PLC to the space side at an angle different for each input port. Optical signals outputted by the PLC are changed in their optical paths on the x-z plane by a cylindrical lens (Lsp) designed to refract optical signals in the x-axis direction, and are reflected by an LCOS at different regions corresponding to the positions of the input port. The reflected optical signals are incident on the output-end SBTs on the PLC, and are outputted to output ports via demultiplex parts.

Abstract: The invention provides a low-cost and easy-to-align optical signal processing device on which a plurality of WSS function units can be integrated using only a single lens. Optical signals input to the first input/output port group (101-1) are output into a space as collimated light via the microlens array (102). The signal light propagating through the space will be wavelength-demultiplexed by the diffraction grating (103), focused by the lens (104), and focused at the upper part in the drawing, with respect to the y-axis direction of the spatial light modulator (105). The light provided with a desired phase modulation and reflected by the spatial light modulator (105) is deflected at a desired angle in the y-z plane according to its phase setting, and further optically coupled to an arbitrary port by passing through the lens (104) again, thus the switching operation is completed.

Abstract: The signature input device includes a display unit, a guide display processing unit, an input unit, a write processing unit, and an output processing unit. The display unit includes a screen displaying an image and has an input field indicating an area at which a signature is written. The guide display processing unit displays guide information when a signature is written inside the input field. The input unit is provided on a surface of the display unit and receives an input by being in contact with a detection object. The write processing unit displays, inside the input field, a locus of the detection object brought into contact with the input field. The output processing unit outputs data of an image displayed inside the input field.

Abstract: To provide an optical signal processing device that can collect light from an input waveguide to form a beam array having a small diameter. The optical signal processing device includes input waveguides 302a to 302c, an array waveguide 305 and a slab waveguide 304 that is connected to a first arc 304a having the single point C as a center and input waveguides 302a to 302c and that is connected to a second arc 404b having the single point C as a center and an array waveguide 305.

Abstract: In accordance with one embodiment, a commodity sales data processing apparatus comprises a stationary type docking station, and a portable information terminal which can be attached to and detached from the docking station freely. The information terminal reads the data attached to a commodity, registers the read data, displays the registration content, and executes, if the information terminal is attached to the docking station, a checkout processing of calculating a checkout amount based on the registration content.

Abstract: A wavelength selection switch can decrease the amount of increase in size and cost of a node device by integrating and sharing the constituent components of a plurality of wavelength selection switches or optical components mounted in a node. The wavelength selection switch has: at least one input port that inputs light; at least one output port that receives light from the input port; at least one light-collecting element that alters the beam shape of the light entering from the input port; at least one scattering element that scatters the light entering from the input port into each wavelength; at least one wavefront control element that causes light of each wavelength scattered by the scattering element to be reflected to the output port for each wavelength.

Abstract: According to one embodiment, a commodity information browsing system includes a shelf label apparatus including a first storing section and a first transmitting section, a portable terminal including a first receiving section, a notifying section, a second receiving section, and a display section, and a server apparatus including a second storing section and a second transmitting section. The first transmitting section transmits, by radio, one shelf label code among a plurality of shelf label codes. The notifying section notifies the server apparatus of the shelf label code. The second storing section stores association information representing a relation between the shelf label codes and commodity information. The second transmitting section determines, on the basis of the association information, the commodity information associated with the notified shelf label code and transmits the relevant commodity information to the portable terminal.

Abstract: An optical input/output device includes a phase modulator element and an optical element. The phase modulator element includes a plurality of pixels arranged in a matrix and is configured to change an optical phase of signal light by applying a driving signal corresponding to a phase pattern. The optical element is configured to convert a direction of exit of the signal light so as to irradiate each pixel with the signal light from the input port. A pattern generator unit includes superimposing means for superimposing a periodic phase pattern having a predetermined period in at least one direction in a plane of the phase modulator element, and means for controlling an amplitude of the periodic phase pattern. The signal light is diffracted to a position according to the period of the superimposed periodic phase pattern, so that light intensity of the signal light is dispersed.

Abstract: In accordance with one embodiment, a commodity sales data processing apparatus comprises a stationary type docking station, and a portable information terminal which can be attached to and detached from the docking station freely. The information terminal reads the data attached to a commodity, registers the read data, displays the registration content, and executes, if the information terminal is attached to the docking station, a checkout processing of calculating a checkout amount based on the registration content.

Abstract: An optical switch includes an input port, output ports, and a spatial light modulating section that receives an optical signal from the input port to deflect the optical signal to a selected one of the output ports. A phase distribution with the same radius of curvature as that of a wavefront of the optical signal and a phase distribution that allows the deflected optical signal to be coupled to the output port are set for the spatial light modulating section.

Abstract: In an integrated optical receiver or transmitter, both the displacement of an optical axis caused by thermal changes and the property degradation of an optical functional circuit are inhibited. A planar lightwave circuit having a substrate and a waveguide-type optical functional circuit formed thereon composed of a material different from that of the substrate, and includes a waveguide region formed only of an optical wavelength that is in contact with a side forming an emission-end face of the optical waveguide for propagating the light emitted from the optical functional circuit or an incident-end face of an optical waveguide for propagating the light incident on the optical functional circuit. The planar lightwave circuit is fixed to a fixing mount only at the bottom of the substrate where the waveguide region is formed.

Abstract: An optical switch with a flat transmission property is provided. The optical switch includes an input port, an output port, a diffractive grating configured to perform wavelength demultiplexing on an optical signal from the input port, and LCOS configured to deflect the wavelength-demultiplexed optical signal to the output port. The diffractive grating is pre-arranged such that a shape of the optical signal as entering the LCOS is asymmetric with respect to an axis in the LCOS surface that is orthogonal to a wavelength axis of the diffractive grating.

Abstract: The invention provides a low-cost and easy-to-align optical signal processing device on which a plurality of WSS function units can be integrated using only a single lens. Optical signals input to the first input/output port group (101-1) are output into a space as collimated light via the microlens array (102). The signal light propagating through the space will be wavelength-demultiplexed by the diffraction grating (103), focused by the lens (104), and focused at the upper part in the drawing, with respect to the y-axis direction of the spatial light modulator (105). The light provided with a desired phase modulation and reflected by the spatial light modulator (105) is deflected at a desired angle in the y-z plane according to its phase setting, and further optically coupled to an arbitrary port by passing through the lens (104) again, thus the switching operation is completed.

Abstract: A waveguide type optical switch that can reduce the number of intersections in a matrix optical switch having the configuration of connecting unit optical switches and optical combining devices or optical branching devices to have a connecting function from “multiple inputs to one output” to “one input to multiple outputs”. To reduce the number of intersections in an entire matrix optical switch, an optical combining device of M inputs and one output is divided into (M?1) pieces of unit optical combining elements each having two inputs and one output, which are arranged immediately after (N?1) pieces of respective output ports excluding one piece of the output port closer to the input in the matrix optical switch out of N pieces of the output ports in the optical switch of one input and N outputs.

Abstract: The discloser provides a multi-input and multi-output optical switch capable of switching over all WDM wavelengths. An optical switch according to one embodiment includes: an optical demultiplexing element (3) that demultiplexes an optical signal from at least one input port into individual wavelengths; a first optical deflection element (5), which deflects an incident optical signal, that deflects the wavelength-separated optical signal incoming from the optical demultiplexing element to change a traveling direction for each wavelength to a switch axis direction perpendicular to a wavelength dispersion axis direction; a second optical deflection element (8) that deflects the optical signal incoming from the first optical deflection element to change the traveling direction to the switch axis direction for output to at least one of the output ports; and an optical multiplexing element (10) that multiplexes the optical signal with the different wavelengths incoming from the second optical deflection element.

Abstract: Provided is an optical module capable of inhibiting both the displacement of an optical axis caused by thermal changes and property degradation in an optical functional circuit. The optical module includes: a planar lightwave circuit including a waveguide-type optical functional circuit and a waveguide region where only an optical waveguide is formed in contact with a side, wherein an emission end face where output light is emitted from the optical functional circuit, or an entrance end face where input light is entered to the optical functional circuit is formed in contact with the side; a fixing mount employed to hold the planar lightwave circuit only in the portion where the waveguide area is located; and an auxiliary mount employed to hold the planar lightwave circuit in contact with a side that is opposite the side where the emission end face or the entrance end face.

Abstract: An optical input/output device includes a phase modulator element and an optical element. The phase modulator element includes a plurality of pixels arranged in a matrix and is configured to change an optical phase of signal light by applying a driving signal corresponding to a phase pattern. The optical element is configured to convert a direction of exit of the signal light so as to irradiate each pixel with the signal light from the input port. A pattern generator unit includes superimposing means for superimposing a periodic phase pattern having a predetermined period in at least one direction in a plane of the phase modulator element, and means for controlling an amplitude of the periodic phase pattern. The signal light is diffracted to a position according to the period of the superimposed periodic phase pattern, so that light intensity of the signal light is dispersed.

Abstract: A wavelength selection switch can decrease the amount of increase in size and cost of a node device by integrating and sharing the constituent components of a plurality of wavelength selection switches or optical components mounted in a node. The wavelength selection switch has: at least one input port that inputs light; at least one output port that receives light from the input port; at least one light-collecting element that alters the beam shape of the light entering from the input port; at least one scattering element that scatters the light entering from the input port into each wavelength; at least one wavefront control element that causes light of each wavelength scattered by the scattering element to be reflected to the output port for each wavelength.

Abstract: According to one embodiment, a commodity information browsing system includes a shelf label apparatus including a first storing section and a first transmitting section, a portable terminal including a first receiving section, a notifying section, a second receiving section, and a display section, and a server apparatus including a second storing section and a second transmitting section. The first transmitting section transmits, by radio, one shelf label code among a plurality of shelf label codes. The notifying section notifies the server apparatus of the shelf label code. The second storing section stores association information representing a relation between the shelf label codes and commodity information. The second transmitting section determines, on the basis of the association information, the commodity information associated with the notified shelf label code and transmits the relevant commodity information to the portable terminal.

Abstract: In an integrated optical receiver or transmitter, both the displacement of an optical axis caused by thermal changes and the property degradation of an optical functional circuit are inhibited. A planar lightwave circuit having a substrate and a waveguide-type optical functional circuit formed thereon composed of a material different from that of the substrate, and includes a waveguide region formed only of an optical wavelength that is in contact with a side forming an emission-end face of the optical waveguide for propagating the light emitted from the optical functional circuit or an incident-end face of an optical waveguide for propagating the light incident on the optical functional circuit. The planar lightwave circuit is fixed to a fixing mount only at the bottom of the substrate where the waveguide region is formed.