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JP7216042B2 |
To provide a technique for accurately measuring the refractive-index distribution of an optical fiber in a simple configuration.A measuring device comprises: imaging means that has an imaging element and takes intensity images of a side ...
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JP7194438B2 |
In this two-dimensional spectroscopic measurement method, a first optical frequency comb in which a repetition frequency is four times an offset frequency is generated, the first optical frequency comb is divided into second to fifth opt...
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JP2022180151A |
To provide a dispersion measuring device and a dispersion measuring method for more accurately measuring the amount of wavelength dispersion of a measurement object.A dispersion measuring device 1A comprises a pulse laser light source 2,...
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JP7173313B2 |
It is intended to provide a phase measurement method and a signal processing device that are capable of reducing influence of noise of a measuring device without increasing the peak intensity of an incident light pulse when measuring the...
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JP7157505B1 |
The optical measurement method includes steps of forming an optical system for recording a hologram generated by modulating object light obtained by illuminating a sample with illumination light with reference light coherent with the ill...
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JP7156132B2 |
Without incorporating an expensive device, this invention uses signal processing to prevent fading from causing accuracy degradation. This invention comprises: a light source unit that produces optical pulses as probe light, a light rece...
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JP7149948B2 |
A method for evaluating the quality of the measurement of an optical wavefront, said measurement being obtained by means of a wavefront analyzer by direct measurement, the method comprising:the acquisition (10) of an optoelectronic signa...
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JP2022138828A |
To enable an oscillation line width of a coherent light source being wavelength swept to be easily measured.Light to be measured which is coherent light having been frequency swept so that an oscillation wavelength changes cyclically is ...
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JP2022540988A |
A sensor device comprises an illumination system, a detector system and a processor. The illumination system is configured to transmit an illumination beam along an illumination path and includes adjustable optics. The adjustable optics ...
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JP7131686B2 |
Object interference in biological samples generated by lateral shearing interference microscopes is addressed by a shearing microscope slide comprising a periodic structure having alternating reference and sample regions. In some embodim...
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JP2022536062A |
A spectropolarimeter 1150 according to an embodiment of the present invention includes a light source attachment/detachment unit to which a light source 1110 is attached/detached, and light emitted from the light source coupled to the li...
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JP7093949B2 |
To provide an optical frequency measurement device capable of highly accurately measuring optical frequency of a target laser without requiring a highly accurate reference light source.An optical frequency identification unit 70 changes ...
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JP2022074869A |
To provide an interferometer which simplifies a configuration of an optical system.An interferometer 10 is used in an optical device 1. The interferometer 10 includes a reflection component 14 for reflecting measured light incident on th...
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JP7069993B2 |
Provided is an optical spectrum line width calculation method, apparatus, and program capable of calculating a spectrum line width of a laser to be measured from an optical interference signal generated by an optical interferometer havin...
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JP2022523751A |
The technical field of the present invention is the field of a system for inspecting the surface of a light wave generated from an optical element (1), wherein the optical element includes an exit pupil (3), and the inspection system is ...
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JP2022519567A |
In some embodiments, the present disclosure comprises an optical region and a pupillary surface (P.4With respect to the wavefront analyzer (110) configured to be connected to a fluorescence microscope imaging system (100) having a micros...
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JP7020385B2 |
It is an object to enable offline measurement with a high SN ratio of the phase of scattered light of an optical fiber to be measured in an optical receiving system for real-time measurement (direct measurement). The phase measurement me...
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JP6994881B2 |
To provide a phase difference measurement device that contributes to acquisition of a parameter highly accurately reflecting a phase difference between light transmitting a different refractive index area.A phase difference measurement d...
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JP7012235B2 |
A photo-detection system includes: a photo-detection apparatus including a light-shielding film, an optically-coupled layer, and a photodetector including first and second photo-detection cells; and an arithmetic circuit that generates, ...
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JP7002407B2 |
An apparatus and source arrangement for filtering an electromagnetic radiation can be provided which may include at least one spectral separating arrangement configured to physically separate one or more components of the electromagnetic...
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JP6998868B2 |
The present invention provides a free space optical communication system that uses orthogonal modes of aberration in a laser beam as means for encoding the information. The system comprises a transmission station which transmits the user...
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JP6983836B2 |
A stabilisation system for stabilising an output of a controllable light or laser source comprises a randomizer for randomizing light from the controllable light or laser source to generate a speckle pattern; a detector for detecting the...
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JP2021184033A |
To provide an optical modulator capable of realizing a function that has been conventionally achieved by a combination of plural optical elements by a single element.In an optical modulator, 16 areas (4×4) are set to be a repletion unit...
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JP6975913B2 |
An imaging apparatus includes an image sensor, an optical system, a control circuit, and a signal processing circuit. The image sensor includes a light-shielding film in which light-transmitting regions and light-shielding regions are al...
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JP2021179310A |
To provide a photodetection device capable of measuring the degree or phase of coherence of light from an object without using a complicated optical system.A photodetection device 13 includes: a light-shielding film containing a pluralit...
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JP6964254B2 |
A photo-detection apparatus includes a light-shielding film, an optically-coupled layer, a photodetector, and an optical system. In the light-shielding film, light-transmitting regions and light-shielding regions are alternately arranged...
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JP6958737B2 |
A defect detection device 10 includes: an excitation source 11 capable of being placed at any position on a surface of an inspection target object S, the excitation source 11 being configured to excite an elastic wave within the inspecti...
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JP6950968B2 |
An electromagnetic wave phase/amplitude generation device includes a radiation unit configured to radiate electromagnetic waves of a random radiation pattern on a spatial frequency in which a state of the electromagnetic waves to be radi...
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JP2021152450A |
To provide an imaging technique capable of measuring the optical characteristics of a subject with higher accuracy.An image pickup apparatus 4 includes a grating 12d, and has an optical coupling layer 12 for waveguiding light, and an ima...
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JP6931137B2 |
Method and apparatus for determining the wavelength of a light beam are provided. An input light beam is received, and light from the input light beam is distributed to multiple channels. At a first pair of interferometer cavities that h...
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JP6896150B1 |
The light transmitted through the subject (2) or the light reflected by the subject (2) is collected by each of the plurality of lenses (6-1) to (6-N), and then the light receiving unit. When an image (61) of each light focused by the pl...
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JP2021071726A |
To provide an optical wavemeter which has a wide usable wavelength range and small losses.A photonic integrated circuit (PIC) for determining a wavelength of an input signal 101 is disclosed. The PIC comprises: a substrate; a first Mach-...
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JP6862246B2 |
To provide a dryness measuring device and a dryness measuring method that accurately measure the dryness of steam.A dryness measuring device 1 includes: a microwave radiation unit 20 provided at the outside of a measurement tube 10 havin...
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JP6839226B2 |
To provide a phase calibration device and a phase measurement method capable of highly accurate phase measurement with high frequency resolution.A multi-tone signal generation section 10 outputs a multi-tone intermediate frequency signal...
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JP6833104B1 |
After the light transmitted through the subject (2) or the light reflected by the subject (2) is collected by each of the plurality of lenses (4-1) to (4-N), the light receiving unit When an image (61) of each light focused by the plural...
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JP6835854B2 |
A method of performing a complex Fourier transform of an input function including amplitude and phase information, including decomposing the input function into a plurality of sub-functions, wherein the Fourier transform of each sub-func...
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JP6831773B2 |
To provide a wavelength sweeping light source realizing stable FDML operation by controlling the optical path length of a resonator according to resonator length change.Reference light outputted from a laser light source 151 is reflected...
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JP6806641B2 |
To provide a device and a method that can easily perform a spatial multiplexing optical transmission path evaluation with a simpler device configuration than the conventional device and method.A reference interferometer is provided in th...
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JP6789441B2 |
This wavefront measurement device is provided with a heat dissipation unit (14) for releasing heat from a control circuit (12) and an input/output unit (10) to outside of a housing (15) by thermal radiation.
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JP6777289B2 |
The present application relates to a device for testing optical properties and a method for testing optical properties using the same. The device of the present application has inexpensive manufacturing and maintenance costs, is capable ...
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JP6775024B2 |
This light wavelength measurement device is provided with a high-frequency voltage generating circuit (50) for causing an acousto-optic tunable filter (12) to vibrate by applying a high-frequency signal to the same, a standard wavelength...
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JP6771697B2 |
This moving body observation device has been configured so that a moving body recovery unit (42) detects a region, in which a moving body (1) is present, from a distance image generated by a radar device (30), and estimates a brightness ...
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JP6770971B2 |
A method for reducing the peak factor of a signal transmitted in a frequency band comprising several channels, the signal using a plurality of channels in the band comprises: a step of clipping the signal, a step of subtracting the clipp...
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JP6770574B2 |
A wavelength measuring device configured to detect a wavelength of ultraviolet laser light outputted from a laser resonator with at least one etalon, the wavelength measuring device includes: a first housing having an interior space bein...
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JP6765648B2 |
To provide an optical detector, an optical detection method, and an optical detection program which can detect faint light rapidly and sensitively with easy configurations.The optical detector includes: a first laser light source for gen...
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JP2020162054A |
To provide an atomic oscillator and a frequency signal generation system having high frequency-stability.The atomic oscillator includes: an atomic cell having a first portion and a second portion at a different position from the first po...
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JP6761974B2 |
To measure the information on an object quantitatively without a complicated operation.A light detection device includes a light detector including a first light reception element and a second light detection element, a first layer with ...
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JP6751362B2 |
To provide a device for measuring a difference in inter-spatial channel propagation delay time and a method for measuring a difference in inter-spatial channel propagation delay time having a high resolution in a limited optical band.A d...
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JP6729988B2 |
The wavefront measurement device performs: generating a first pupil function at a reference wavelength based on input data of a wavefront aberration; calculating a first image plane amplitude at a reference wavelength based on the first ...
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JP6727124B2 |
A stabilisation system for stabilising an output of a controllable light or laser source comprises a randomizer for randomizing light from the controllable light or laser source to generate a speckle pattern; a detector for detecting the...
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