Abstract: A distributed feedback plus reflection (DFB+R) laser includes an active section, a passive section, a low reflection (LR) mirror, and an etalon. The active section includes a distributed feedback (DFB) grating and is configured to operate in a lasing mode. The passive section is coupled end to end with the active section. The LR mirror is formed on or in the passive section. The etalon includes a portion of the DFB grating, the passive section, and the LR mirror. The lasing mode of the active section is aligned to a long wavelength edge of a reflection peak of the etalon.

Abstract: An isolator-free laser includes an etalon, an active section, and a low reflection (LR) mirror. The etalon includes a passive section of the isolator-free laser and a reflection profile. The active section is coupled end to end with the passive section. The active section has a distributed feedback (DFB) grating and a lasing mode at a long wavelength side of a reflection peak of the reflection profile. The LR mirror is formed on a front facet of the passive section. The long wavelength edge of the reflection peak of the reflection profile may have a slope greater than 0.006 GHz?1. A RIN of the isolator-free laser under ?20 decibels (dB) external cavity optical feedback may be less than or equal to ?130 dBc/Hz.

Abstract: A two-kappa DBR laser includes an active section, a HR mirror, a first DBR section, and a second DBR section. The HR mirror is coupled to a rear of the active section. The first DBR section is coupled to a front of the active section, the first DBR section having a first DBR grating with a first kappa ?1. The second DBR section is coupled to a front of the first DBR section such that the first DBR section is positioned between the active section and the second DBR section. The second DBR section has a second DBR grating with a second kappa ?2 less than the first kappa ?1. The two-kappa DBR laser is configured to operate in a lasing mode and has a DBR reflection profile that includes a DBR reflection peak. The lasing mode is aligned to a long wavelength edge of the DBR reflection peak.

Abstract: A distributed reflector (DR) laser may include a distributed feedback (DFB) region and a distributed Bragg reflector (DBR). The DFB region may have a length in a range from 30 micrometers (?m) to 100 ?m and may include a DFB grating with a first kappa in a range from 100 cm?1 to 150 cm?1. The DBR region may be coupled end to end with the DFB region and may have a length in a range from 30-300 ?m. The DBR region may include a DBR grating with a second kappa in a range from 150 cm?1 to 200 cm?1. The DR laser may additionally include a lasing mode and a p-p resonance frequency. The lasing mode may be at a long wavelength side of a peak of a DBR reflection profile of the DBR region. The p-p resonance frequency may be less than or equal to 70 GHz.

Abstract: [Object] Reduction of the influence of liquid crystal inversion can be achieved without increasing a driving frequency of a liquid crystal light control element. [Solution] a liquid crystal light control element having a plurality of liquid crystal layers sandwiched between two electrodes serving as electrodes at both ends and arranged side by side in a direction of an optical axis of transmitted light is driven. In this case, a driving signal inverted at predetermined intervals is applied to the electrodes at both ends of each of the liquid crystal layers. By setting the driving signals of the plurality of systems as signals shifted from an in-phase or reversed-phase relationship, so the inversion timing of each liquid crystal layer is made not to coincide.

Abstract: A system includes a surface coupled edge emitting laser that includes a core waveguide, a fan out region optically coupled to the core waveguide in a same layer of the surface coupled edge emitting laser as the core waveguide; and a first surface grating formed in the fan out region; and a photonic integrated circuit (PIC) that includes an optical waveguide and a second surface grating formed in an upper layer of the PIC, wherein the second surface grating is in optical alignment with the first surface grating.

Abstract: An information processing apparatus including circuitry configured to obtain, from sensors, first and second observation information related to at least one characteristic of a user, recognize the user based on correlation between the first and second observation information, and initiate an execution function associated with the recognized user.

Abstract: A grating coupled laser (GCL) includes an active section and a passive section. The passive section is butt coupled to the active section to form a butt joint with the active section. The active section includes an active waveguide. The passive section includes a passive waveguide, a transmit grating coupler, and a top cladding. The passive waveguide is optically coupled end to end with the active waveguide and includes a first portion and a second portion. The first portion of the passive waveguide is positioned between the second portion of the passive waveguide and the active waveguide. The transmit grating coupler is optically coupled to the passive waveguide and includes grating teeth that extend upward from the second portion of the passive waveguide. The top cladding is positioned directly above the first portion of the passive waveguide and is absent directly above at least some of the transmit grating coupler.

Abstract: A distributed reflector (DR) laser may include a distributed feedback (DFB) region and a distributed Bragg reflector (DBR). The DFB region may have a length in a range from 30 micrometers (?m) to 100 ?m and may include a DFB grating with a first kappa in a range from 100 cm?1 to 150 cm?1. The DBR region may be coupled end to end with the DFB region and may have a length in a range from 30-300 ?m. The DBR region may include a DBR grating with a second kappa in a range from 150 cm?1 to 200 cm?1. The DR laser may additionally include a lasing mode and a p-p resonance frequency. The lasing mode may be at a long wavelength side of a peak of a DBR reflection profile of the DBR region. The p-p resonance frequency may be less than or equal to 70 GHz.

Abstract: There is an image processing device to obtain more accurate depth information, based on a pattern-irradiated infrared image and a pattern-irradiation-free infrared image. The image processing device includes a pattern irradiation unit that irradiates an infrared pattern onto a surface of a target object; and an infrared image capturing unit that captures an infrared image. The pattern irradiation unit performs irradiation at a predetermined timing corresponding to an infrared image capturing unit's image capturing timing. The infrared image capturing unit obtains a pattern-projected infrared image in which the pattern irradiated by the pattern irradiation unit is projected on the target object, and a pattern-free infrared image in which the pattern is not projected on the target object.

Abstract: A distributed reflector (DR) laser may include a distributed feedback (DFB) region and a distributed Bragg reflector (DBR). The DFB region may have a length in a range from 30 micrometers (?m) to 100 ?m and may include a DFB grating with a first kappa in a range from 100 cm?1 to 150 cm?1. The DBR region may be coupled end to end with the DFB region and may have a length in a range from 30-300 ?m. The DBR region may include a DBR grating with a second kappa in a range from 150 cm?1 to 200 cm?1. The DR laser may additionally include a lasing mode and a p-p resonance frequency. The lasing mode may be at a long wavelength side of a peak of a DBR reflection profile of the DBR region. The p-p resonance frequency may be less than or equal to 70 GHz.

Abstract: workpiece bending method and a workpiece bending apparatus that allow setting of a trajectory of a bending implement based upon a pre-processed shape of a workpiece and an intended post-processed shape of the workpiece. The workpiece bending method bends a flange of a workpiece via a processing roller, and includes a step for obtaining a pre-processed angle of the flange before processing and a flange length of the portion of the flange to be bent; a trajectory determination step for determining a path (trajectory) of the processing roller based upon the pre-processed angle, an intended angle after processing, and the flange length; and a processing step for moving the processing roller in a prescribed direction in accordance with the path determined in the trajectory determination step and then bending the flange until the intended angle is achieved.

Abstract: There is provided a control device, a control method, and a program through which it is possible to implement a more suitable imaging environment even under a situation in which auxiliary light is emitted from a plurality of light sources, the control device including: an acquisition unit configured to acquire a light emission state of a first light source; and a control unit configured to control an operation of light emission of a second light source that is different from the first light source according to the acquired light emission state of the first light source.

Abstract: In a piping connection structure of a vehicle including: a throttle body connected to a power unit of the vehicle to adjust an intake air amount; a fuel injection device for injecting fuel to an intake passage including the throttle body; first pipings attached to the fuel injection device; and second pipings provided separately from the first pipings, and having end parts connected to the first pipings so as to intersect with the first pipings, a connection part between the first pipings and the second pipings has a long adjustment holes, which extend so as to allow adjustment of relative angles between the first pipings and the second pipings.

Abstract: A system includes a surface coupled edge emitting laser that includes a core waveguide, a fan out region optically coupled to the core waveguide in a same layer of the surface coupled edge emitting laser as the core waveguide; and a first surface grating formed in the fan out region; and a photonic integrated circuit (PIC) that includes an optical waveguide and a second surface grating formed in an upper layer of the PIC, wherein the second surface grating is in optical alignment with the first surface grating.

Abstract: A system includes a grating coupled laser and a photonic integrated circuit (PIC). The grating coupled laser includes a first waveguide and a transmit grating coupler optically coupled to the first waveguide. The PIC includes a second waveguide and a receive grating coupler optically coupled to the second waveguide. The receive grating coupler is in optical alignment with the transmit grating coupler. The receive grating coupler includes a first grating and a second grating spaced apart from and above the first grating within the PIC.

Abstract: There is provided a control device, a control method, and a program through which it is possible to implement a more suitable imaging environment even under a situation in which auxiliary light is emitted from a plurality of light sources, the control device including: an acquisition unit configured to acquire a light emission state of a first light source; and a control unit configured to control an operation of light emission of a second light source that is different from the first light source according to the acquired light emission state of the first light source.

Abstract: A distributed reflector (DR) laser may include a distributed feedback (DFB) region and a distributed Bragg reflector (DBR). The DFB region may have a length in a range from 30 micrometers (?m) to 100 ?m and may include a DFB grating with a first kappa in a range from 100 cm?1 to 150 cm?1. The DBR region may be coupled end to end with the DFB region and may have a length in a range from 30-300 ?m. The DBR region may include a DBR grating with a second kappa in a range from 150 cm?1 to 200 cm?1. The DR laser may additionally include a lasing mode and a p-p resonance frequency. The lasing mode may be at a long wavelength side of a peak of a DBR reflection profile of the DBR region. The p-p resonance frequency may be less than or equal to 70 GHz.

Abstract: A system includes a surface coupled edge emitting laser that includes a core waveguide, a fan out region optically coupled to the core waveguide in a same layer of the surface coupled edge emitting laser as the core waveguide; and a first surface grating formed in the fan out region; and a photonic integrated circuit (PIC) that includes an optical waveguide and a second surface grating formed in an upper layer of the PIC, wherein the second surface grating is in optical alignment with the first surface grating.

Abstract: An image recognition unit of the present disclosure includes: a plurality of memory sections; a writing section that selectively writes a plurality of pieces of pixel data of a data map to the plurality of memory sections; and an arithmetic section that reads a plurality of pixel data sets from the plurality of memory sections, and determines whether an input image corresponding to the data map includes a recognition object, on a basis of the plurality of pixel data sets, the pixel data sets each including a predetermined number of pieces of pixel data.