摘要:
To obtain an optical pulse evaluation device and an in-service optical pulse evaluation device, which are capable of characteristics evaluation of an optical pulse itself or a sample launched therein, in a relatively high bit-rate region. Optical pulse 42 output repeatedly from an optical pulse light source 43 at a frequency fREP passes through sample 93 n sample stage 91 to be scanned by tunable wavelength optical band pass filter 47. A detection result by photodiode 51 is input in phase detection circuit 45 accompanying with the reference frequency fREP and the result is operated by operation unit 58C of personal computer 52 to know a spectral phase and a spectral intensity of the optical pulse passed through sample 93. Correcting this by applying the operation result in the state, where sample 93 has been removed enables to evaluate characteristics such as deterioration of optical pulse 42 by using sample 93. It is also possible to evaluate a waveform of optical pulse 42 as a light source. The present invention can evaluate the optical pulse in in-service.
摘要:
An optical pulse evaluation device and an in-service optical pulse evaluation device is disclosed which are capable of characteristics evaluation of an optical pulse itself or a sample launched therein in a relatively high bit-rate region. The optical pulse evaluation device evaluates a pulse waveform expressing an optical intensity of the optical pulse, an instantaneous frequency of the optical pulse, or a modulated light prepared by modulating the optical pulse in a light source end. The optical pulse evaluation device also observes a waveform change after a known optical pulse is passed through a device such as an optical fiber to evaluate a waveform deterioration or a compensation behavior caused by the device. The in-service optical pulse evaluation device is capable of measuring a wavelength dispersion in an optical communication.
摘要:
PROBLEM TO BE SOLVED: to realize a wide bandwidth light source capable of a stable operation providing a less spectrum variation. SOLUTION: Optical pulses 202 outputted by this optical pulse-generating device 201 are split by optical coupler 210. The one of split optical pulses is inputted in white light-emitting device 204 to emit the white light having the wide bandwidth. The other split is inputted in optical band pass filter 212 in operation-stabilizing circuit 207. Optical detector 213 detects a signal level of a specific wavelength and input in feedback circuit 215 to generate first and second feedback signals 205 and 206. Ring resonator fiber laser 208 uses any one of them and controls a rotation angle of the waveplate to realize stabilization of the output.
摘要:
PROBLEM TO BE SOLVED: to realize a wide bandwidth light source capable of a stable operation providing a less spectrum variation.SOLUTION: Optical pulses 202 outputted by this optical pulse-generating device 201 are split by optical coupler 210. The one of split optical pulses is inputted in white light-emitting device 204 to emit the white light having the wide bandwidth. The other split is inputted in optical band pass filter 212 in operation-stabilizing circuit 207. Optical detector 213 detects a signal level of a specific wavelength and input in feedback circuit 215 to generate first and second feedback signals 205 and 206. Ring resonator fiber laser 208 uses any one of them and controls a rotation angle of the waveplate to realize stabilization of the output.
摘要:
A method for forming a wiring pattern in which a plurality of electrical wirings deposited onto a substrate is conductively connected with each other through a plurality of conductive posts, the method including relatively moving a discharge head having a plurality of nozzles and a substrate in a predetermined direction while discharging droplets from predetermined nozzles among the plural nozzles to form the plural conductive posts, wherein, in the orthogonal direction of the above-referenced predetermined direction, the interval among the plural nozzles “a” and the interval among the plural conductive posts “b” satisfy an equation “b=m×a” (“m” may be any positive integer).
摘要:
A method for forming a wiring pattern in which a plurality of electrical wirings deposited onto a substrate is conductively connected with each other through a plurality of conductive posts, the method including relatively moving a discharge head having a plurality of nozzles and a substrate in a predetermined direction while discharging droplets from predetermined nozzles among the plural nozzles to form the plural conductive posts, wherein, in the orthogonal direction of the above-referenced predetermined direction, the interval among the plural nozzles “a” and the interval among the plural conductive posts “b” satisfy an equation “b=m×a” (“m” may be any positive integer).
摘要:
A conductive pattern forming ink for forming a conductive pattern on a substrate by a droplet discharge method includes: metal particles; an aqueous dispersion medium in which the metal particles are dispersed; xylitol; and a polyglycerol compound having a polyglycerol skeleton. H shown in the following formula (I) is 0.10 to 0.70, and H = OH ( A ) Mw ( A ) X ( A ) + OH ( B ) Mw ( B ) X ( B ) Formula ( I ) OH(A) represents an average number of hydroxyl groups in one molecule of the polyglycerol compound, Mw(A) represents a weight-average molecular weight of the polyglycerol compound, X(A) represents a content of the polyglycerol compound in the conductive pattern forming ink in weight percent; and OH(B) represents the number of hydroxyl groups in one molecule of the xylitol, Mw(B) represents a molecular weight of the xylitol, and X(B) represents a content of the xylitol in the conductive pattern forming ink in weight percent.
摘要:
A conductive pattern formation ink which can be stably ejected in the form of liquid droplets and form a conductive pattern having high reliability, a conductive pattern having high reliability, and a wiring substrate provided with the conductive pattern and having high reliability are provided. The conductive pattern formation ink is used for forming a conductive pattern by ejecting the ink in the form of liquid droplets on a surface of a ceramic molded body using a liquid droplet ejecting method, the ceramic molded body being made of a material containing ceramic particles and a binder. The ink contains a water-based dispersion medium, and metal particles dispersed in the water-based dispersion medium, wherein the water-based dispersion medium contains oxygen molecules and nitrogen molecules, and wherein when the water-based dispersion medium is analyzed using a gas chromatography method, a total amount of the oxygen and nitrogen molecules contained in the water-based dispersion medium is 12 ppm or less.
摘要:
A method of manufacturing a wiring substrate having a wiring layer formation step that includes: a first surface processing step in which surface processing is performed on a film formation area of a substrate; a wiring formation step in which a wiring pattern is formed by placing a first liquid material on the film formation area; a second surface processing step in which surface processing is once again performed on the film formation area; and an insulating film formation step in which an insulating film is formed by placing a second liquid material in gaps in the wiring pattern, wherein an affinity between the second liquid material and the film formation area in the insulating film formation step is greater than an affinity between the first liquid material and the film formation area in the wiring formation step.
摘要:
A wiring pattern formation method in which a wiring pattern is formed by arranging, in a region which is demarcated by a partition wall, liquid material which includes an electrically conductive material, including: arranging a resin material around the periphery of a region upon which the wiring pattern is to be formed; imparting liquid affinity to a demarcated region which has been demarcated by the resin material; narrowing down the demarcated region by flowing out the resin material towards and into the demarcated region; and forming the partition wall by curing the resin material.