Abstract: An optical transmitter includes a dummy optical source, a polarized wave beam coupler, and an auto gain control (AGC)-system amplifier. The dummy optical source outputs, out of an optical signal in which an optical path signal and an optical packet signal are mixed, a dummy signal having a wavelength identical to that of the optical packet signal. The polarized wave beam coupler multiplexes the dummy signal with the optical signal so that the dummy signal is orthogonal to the optical signal so as to output an output signal. The AGC-system amplifier inputs the output signal, and amplifies the output signal with a predetermined amplification factor corresponding to a power difference between input power and output power of an optical amplifier.

Abstract: In a connector (10) with a first housing (11) made of resin and including a first terminal portion (42A) connected to a first device and a second housing (25) made of resin and including a second terminal portion (42B) connected to a second device, the first and second housings (11, 25) are coupled and united by a coupling portion (30) made of rubber and formed by insert molding or two-color molding. A method for manufacturing the connector (10) of the present invention includes a uniting step of coupling and uniting the first and second housings (11, 25) by the coupling portion (30) made of rubber by insert molding or two-color molding.

Abstract: There is provided an optical transmission device including: a packet disassembler configured to disassemble a packet into a plurality of signals having a different wavelength; an amplifier configured to amplify, for each of the wavelength, each signal into which the packet is disassembled by the packet disassembler, based on a correction value set for each wavelength; and a multiplexer configured to multiplex the respective signals amplified by the amplifier so as to transmit a packet generated by multiplexing the respective signals.

Abstract: An insulating coated wire includes a center conductor and an insulating coating. The insulating coating has a bending auxiliary section in which the thickness of the insulating coating is smaller than that of the other portion, and that has a shape in which at least a part thereof protrudes outward in the radial direction. The bending auxiliary section has a shape that facilitates bending of the insulating coated wire by elongation deformation thereof. This insulating coated wire can be manufactured by arranging, on the circumference of an insulating coated wire material, a metal mold that has the inner surface including the section having a shape protruding outward in the radial direction, and forming the bending auxiliary section in the shape along the inner surface of the metal mold by heating the insulating coating within the metal mold and generating a pressure difference between inside and outside of the insulating coating.

Abstract: A connector (130) is provided with wires (12) including shield layers (12C), L-shaped terminal fittings (13) mounted on ends of the wires (12), a resin molded part (24) provided to include connected parts of the wires (12) and the terminal fittings (13), a first shield shell (133) configured to cover a predetermined part of the resin molded part (24) and including a through hole (33A), a wire shield connecting member (132) connected to the shield layers (12C) of the wires (12) and including a through hole (23A) and a bolt (40) configured to fasten the first shield shell (133) and the wire shield connecting member (132) by being inserted through the respective through holes (33A, 23A) and electrically connect the first shield shell (133) and the wire shield connecting member (132).

Abstract: A battery module includes: a plurality of connecting members electrically connecting electric terminals of adjacent electric cells; and a flexible flat cable formed by flatly encapsulating an outer circumference of a flat conductor with an insulating resin and joining the plurality of connecting members. Portions of the flexible flat cable to be disposed between adjacent connecting members are provided with folded portions formed by folding the flexible flat cable at folded lines. The folded lines extend in a direction crossing a longitudinal direction of the flexible flat cable.

Abstract: An optical transmission system includes a transmission side optical transmission apparatus having a transmitting unit configured to transmit optical signals of a predetermined number of differing wavelengths, and a processor configured to apply to the optical signals transmitted from the transmitting unit, a predetermined offset related to a tilt; and a reception side optical transmission apparatus having a receiving unit configured to receive the optical signals transmitted from the transmitting unit, a measuring unit configured to measure an optical signal count of the optical signals receivable by the receiving unit, and a notifying unit configured to give notification of the optical signal count measured by the measuring unit. The processor adjusts the offset in an increasing direction when the optical signal count notified by the notifying unit increases, and adjusts the offset in a decreasing direction when the optical signal count notified by the notifying unit decreases.

Abstract: A connector includes a connector housing having a cavity, a male terminal having a protruded portion, a sealing ring receiving recess included in the connector housing, a sealing ring arranged in the sealing ring receiving recess, and a retainer mounted in the connector housing and pressing the sealing ring from a front side of the protruded portion of the male terminal. The male terminal is housed in the cavity in a way that the protruded portion protrudes from the connector housing. The sealing ring receiving recess is located at a position corresponding to a base section of the male terminal that is on a side from which the protruded portion protrudes. The male terminal passes through the sealing ring such that it seals a space between the male terminal and an inner surface of the sealing ring receiving recess. The retainer includes an engagement portion engaged with the male terminal.

Abstract: In a connector (10) with a first housing (11) made of resin and including a first terminal portion (42A) connected to a first device and a second housing (25) made of resin and including a second terminal portion (42B) connected to a second device, the first and second housings (11, 25) are coupled and united by a coupling portion (30) made of rubber and formed by insert molding or two-color molding. A method for manufacturing the connector (10) of the present invention includes a uniting step of coupling and uniting the first and second housings (11, 25) by the coupling portion (30) made of rubber by insert molding or two-color molding.

Abstract: An optical packet signal transmission device includes a transmitting unit which includes a plurality of data delay circuits; a plurality of optical branch units which branches some of the optical packet signals as monitor lights; an optical switch which selects one of the monitor lights; a test signal generation circuit which generates a test signal which is used to adjust a delay amount in the data delay circuits; a reference optical pulse generation circuit which generates a reference optical pulse based on the test signal; an optical phase comparator which detects an relative optical phase difference by comparing the phases of the selected monitor light and the reference optical pulse; and a control circuit which sequentially sends the test signals to the data delay circuits, switches the selected monitor light, detects a relative optical phase, determines the delay amount based on a detection result, and sets the delay amount.

Abstract: A connector (130) is provided with wires (12) including shield layers (12C), L-shaped terminal fittings (13) mounted on ends of the wires (12), a resin molded part (24) provided to include connected parts of the wires (12) and the terminal fittings (13), a first shield shell (133) configured to cover a predetermined part of the resin molded part (24) and including a through hole (33A), a wire shield connecting member (132) connected to the shield layers (12C) of the wires (12) and including a through hole (23A) and a bolt (40) configured to fasten the first shield shell (133) and the wire shield connecting member (132) by being inserted through the respective through holes (33A, 23A) and electrically connect the first shield shell (133) and the wire shield connecting member (132).

Abstract: An optical transmission apparatus includes a splitter configured to split an input optical signal into a first optical signal and a second optical signal, a signal length determiner configured to determine a signal length of the first optical signal per unit time, an optical power detector configured to detect an optical power of the first optical signal per unit time, a delay unit configured to delay the second optical signal, an optical amplifier configured to amplify the second optical signal delayed by the delay unit, a first excitation light source configured to generate an excitation light to be supplied to the optical amplifier, and a first excitation light power adjustor configured to adjust an optical power of the excitation light to be supplied to the optical amplifier in accordance with the signal length of the first optical signal and the optical power of the first optical signal.

Abstract: A connector includes a connector housing having a cavity, a male terminal having a protruded portion, a sealing ring receiving recess included in the connector housing, a sealing ring arranged in the sealing ring receiving recess, and a retainer mounted in the connector housing and pressing the sealing ring from a front side of the protruded portion of the male terminal. The male terminal is housed in the cavity in a way that the protruded portion protrudes from the connector housing. The sealing ring receiving recess is located at a position corresponding to a base section of the male terminal that is on a side from which the protruded portion protrudes. The male terminal passes through the sealing ring such that it seals a space between the male terminal and an inner surface of the sealing ring receiving recess. The retainer includes an engagement portion engaged with the male terminal.

Abstract: A battery module includes: a plurality of connecting members electrically connecting electric terminals of adjacent electric cells; and a flexible flat cable formed by flatly encapsulating an outer circumference of a flat conductor with an insulating resin and joining the plurality of connecting members. Portions of the flexible flat cable to be disposed between adjacent connecting members are provided with folded portions formed by folding the flexible flat cable at folded lines. The folded lines extend in a direction crossing a longitudinal direction of the flexible flat cable.

Abstract: An optical packet signal transmission device includes a transmitting unit which includes a plurality of data delay circuits; a plurality of optical branch units which branches some of the optical packet signals as monitor lights; an optical switch which selects one of the monitor lights; a test signal generation circuit which generates a test signal which is used to adjust a delay amount in the data delay circuits; a reference optical pulse generation circuit which generates a reference optical pulse based on the test signal; an optical phase comparator which detects an relative optical phase difference by comparing the phases of the selected monitor light and the reference optical pulse; and a control circuit which sequentially sends the test signals to the data delay circuits, switches the selected monitor light, detects a relative optical phase, determines the delay amount based on a detection result, and sets the delay amount.

Abstract: An aspect of the embodiments utilizes an optical transmission apparatus which includes a rough adjustment execution portion that monitors a bit error rate of an optical signal for set values of a dispersion compensator where the set values have been set less closely to each other within a dispersion compensation control range than when a wavelength dispersion value set in the dispersion compensator is determined, and carries out a rough adjustment to determine a comparison threshold value used to set the wavelength dispersion value based on the monitored bit error rate, and a fine adjustment execution portion that monitors the bit error rate for the dispersion compensator the set values have been set more closely to each other, and carries out an adjustment to determine a wavelength dispersion value corresponding to the midpoint between the two acquired bit error rates as the wavelength dispersion value of the dispersion compensator.

Abstract: The present invention provides a water-proofing joint connector capable of electrically interconnecting a plurality of terminals, with a simple structure, irrespective of the number of the terminals. The water-proofing joint connector includes a connection conductor, a housing and a cap member. The connecting conductor has a plurality of fitting portions to be fitted with respective terminals, preliminarily held within the housing. The housing includes a plurality of terminal insertion portions and a cap-member insertion portion which opens to an opposite side of the terminal insertion portions. The cap member has a cap portion to close the cap-member insertion portion and a fit detection portion to come into contact with the terminal locking portion elastically displaced by the terminals failing to be fully fitted, to thereby prevent the cap member from being attached to the cap-member insertion portion.

Abstract: A transponder includes a CDR section that extracts clocks from an input signal, an oscillating section that can output various frequencies to the CDR section, a frequency instruction processing section that instructs the oscillating section to output an arbitrary frequency, a detection processing section, and a frame processing section control section. The detection processing section determines whether the frequency output from the oscillating section and an input signal synchronize in frequency or not in response to an instruction by the frequency instruction processing section, and detects a synchronization frequency. The frame processing section control section operates a frame processing section based on the synchronization frequency detected by the detection processing section.

Abstract: The present invention provides a water-proofing joint connector capable of electrically interconnecting a plurality of terminals, with a simple structure, irrespective of the number of the terminals. The water-proofing joint connector includes a connection conductor, a housing and a cap member. The connecting conductor has a plurality of fitting portions to be fitted with respective terminals, preliminarily held within the housing. The housing includes a plurality of terminal insertion portions and a cap-member insertion portion which opens to an opposite side of the terminal insertion portions. The cap member has a cap portion to close the cap-member insertion portion and a fit detection portion to come into contact with the terminal locking portion elastically displaced by the terminals failing to be fully fitted, to thereby prevent the cap member from being attached to the cap-member insertion portion.

Abstract: A wavelength-multiplexing optical transmission apparatus includes an optical-wavelength-information storing unit that stores optical wavelength information on an optical wavelength of an optical signal to be output from a transponder, and an optical-wavelength-information transmitting unit that transmits the stored optical wavelength information to the transponder via a connection cable. The transponder includes an optical-wavelength control unit that controls an optical wavelength of an optical signal to be input to a wavelength multiplexing unit based on the optical wavelength information received from the optical-wavelength-information transmitting unit.