摘要:
An electric component structure is provided with at least two electrical conductive parts, an insulator and a magnetic flux generating structure. The electrical conductive parts are arranged with an electric line of force existing between adjacent ones of the conductive parts. The insulator holds the conductive parts. The magnetic flux generating structure generates a magnetic flux with magnetic flux lines oriented in a direction different from a direction of the electric line of force existing between the adjacent ones of the conductive parts.
摘要:
An electric component structure is provided with at least two electrical conductive parts, an insulator and a magnetic flux generating structure. The electrical conductive parts are arranged with an electric line of force existing between adjacent ones of the conductive parts. The insulator holds the conductive parts. The magnetic flux generating structure generates a magnetic flux with magnetic flux lines oriented in a direction different from a direction of the electric line of force existing between the adjacent ones of the conductive parts.
摘要:
A resistant body 13 is provided in a periphery of at least one of the current-carrying members 11 on a surface of the insulator 12. The resistant body 13 distributes a voltage applied to the surface of the insulator 12 between a pair of the current-carrying members 11 adjacent to each other, so that a potential difference distributed on the surface of the insulator 12 is set to a discharge starting voltage or less.
摘要:
Super-structured fiber Bragg gratings (SSFBGs) of s optical pulse time spreaders are provided with N unit FBGs disposed starting from an input/output end in the order of first to N-th unit FBGs, where s is a parameter less than or equal to a parameter N, a natural number. The unit FBGs are configured such that the reflectivities of the unit FBGs placed from one end to the center of the SSFBG formed in an optical fiber are monotonically increased, while the reflectivities of the unit FBGs placed from the center to the other end of the SSFBG are monotonically decreased. The chip pulses in a pulse train are given relative phases such that the relative phase of the first chip pulse is equal to zero, the relative phase of the second chip pulse is equal to a phase difference d1=2π{a+(n−1)/N}, . . . , and the relative phase of the N-th chip pulse is equal to (N−1)d1. The parameter a is any real number satisfying the condition of 0≦a
摘要:
An optical pulse time spreading apparatus wherein an optical splitter divides an input optical pulse into first to U-th input optical pulses; first to U-th optical pulse time spreaders respectively have the first to U-th input optical pulses input thereto and output first to U-th chip pulse sequences each consisting of N chip pulses from a first to an N-th chip pulse arranged in order on a time axis into which the input optical pulse is time-spread; and an interval between adjacent ones of unit FBGs arranged in a p-th optical pulse time spreader and a Bragg reflection wavelength of the unit FBGs in the p-th optical pulse time spreader are set such that spectra of the first to U-th chip pulse sequences are different from each other.
摘要:
An optical code division multiplexing signal generator provided with an optical pulse light source, a first encoder to an Nth encoder, a first optical modulator to an Nth optical modulator, and a first optical circulator to an Nth optical circulator. The first optical circulator inputs an input optical pulse train to a first encoder, and inputs a first encoded optical pulse train output by Bragg reflection from the first encoder to the first optical modulator. The kth optical circulator inputs an input (k−1)th optical pulse train which has passed through the (k−1)th encoder to a kth encoder, and inputs a kth encoded optical pulse train output by Bragg reflection from the kth encoder to the kth optical modulator. Herein k takes all integers from 2 to N, and N is a positive integer of 2 or more.
摘要:
An optical pulse time spreading device includes S optical pulse time spreading elements that spread input optical pulses into trains of (N×j) chip pulses, where j is an integer greater than zero, S is an integer greater than one, and N is an integer equal to or greater than S. In the chip pulse trains output by the n-th optical pulse time spreading element (n=1, 2, . . . , S), the light in successive chip pulses is shifted in phase by successive integer multiples of the quantity 2π{a+(n−1)/N}, where a is an arbitrary constant (0≦a
摘要:
A wavelength tuning device of the invention tunes the reflected wavelength of a fiber Bragg grating, and includes: an optical fiber (102) in which a fiber Bragg grating (106) is formed; a base member (104) to which the optical fiber (102 is fixed; a first temperature sensor (112) that detects a temperature of the base member (104); a thermo-module (116) that adjust the temperature of the base member (104) such that the temperature detected by the first temperature sensor (112) is maintained at a desired temperature; a second temperature sensor (126) that detects an external temperature of the wavelength tuning device; and a temperature controller (130) that controls the thermo-module (116) such that the temperature of the base member (104) is maintained at the desired temperature based on the external temperature detected by the second temperature sensor (126).
摘要:
A method for manufacturing a single stone into a regular dodecahedral ornament or a regular icosahedral ornament, and the ornament manufactured according to the method are provided. The method enables the ornament to be manufactured at low costs with ease without using a complicated, numerically computer-controlled shaping machine. The geometric features determining the faces and ridges of a regular dodecahedron or a regular icosahedron are drawn as cutting base lines on each surface of a cubic workpiece. On a face formed by cutting based on the cutting base lines, new auxiliary cutting lines are sequentially drawn by marking. Then, based on these auxiliary cutting lines and the remaining cutting base lines, a possible cut face is determined, which is in turn cut using a cutting tool. The cutting base lines which are erased after each cutting are complemented by auxiliary cutting lines to find a new possible cut face, which is in turn cut in sequence, thereby manufacturing the regular polyhedral ornament.
摘要:
An optical pulse time spreading device includes S optical pulse time spreading elements that spread input optical pulses into trains of (N×j) chip pulses, where j is an integer greater than zero, S is an integer greater than one, and N is an integer equal to or greater than S. In the chip pulse trains output by the n-th optical pulse time spreading element (n=1, 2, . . . , S), the light in successive chip pulses is shifted in phase by successive integer multiples of the quantity 2π{a+(n−1)/N}, where a is an arbitrary constant (0≦a