Abstract: There is provided a coaxial connector device that enables a reduction in deterioration in signal quality and transmission characteristics at high frequencies. A coaxial connector device 1 includes a main connector 10 and a board connector 20. A main connector body 11 has a first fitting part R1 for a coaxial cable connector at one end and a second fitting part R2 at the other end. Inside the main connector body 11, a center contact 13 and a card edge substrate 17 electrically connected to the center contact 13 are included. In a board connector body 21 a slot 23 is formed.

Abstract: A laser beam profile measurement device includes: a plate-like or block-like fluorescence generation element including an incidence surface on which a laser light is incident and an emission surface from which the laser light is emitted; a light separation element for separating fluorescence from the laser light, the fluorescence generated in the fluorescence generation element and emitted from the emission surface; and an image element for receiving the fluorescence. The fluorescence generation element includes a first film formed on the incidence surface thereof. The first film has a wavelength-to-reflectance characteristic of transmitting a wavelength ?1 of the laser light and reflecting a wavelength ?2 of the fluorescence. The first film has a wavelength-to-reflectance characteristic of transmitting a wavelength ?1 of the laser light and reflecting a wavelength ?2 of the fluorescence.

Abstract: A connector with a lock mechanism includes a connector 10 and a counterpart connector 20. A connector main body 11 of the connector 10 has an annular groove 113. An inner sleeve 17 and an outer sleeve are arranged movably in an axial direction on an outer circumferential surface of the connector main body 11 and outside the inner sleeve 17, respectively. The outer sleeve 13 has a locking pin 15 projecting from an inner circumferential surface close to a front end of the outer sleeve 13. A ball accommodation hole 22, an inlet groove 26, and a circumferential direction groove 28 are formed in a tubular member 21 of the counterpart connector 20. When the connector main body 11 is inserted into the tubular member 21, an engaging ball 23 accommodated in the ball accommodation hole 22 becomes engaged with the annular groove 113 and the locking pin 15 becomes engaged with the inlet groove 26, allowing the connectors to be connected with each other.

Abstract: A connector with a lock mechanism includes a connector 10 and a counterpart connector 20. A connector main body 11 of the connector 10 has an annular groove 113. An inner sleeve 17 and an outer sleeve are arranged movably in an axial direction on an outer circumferential surface of the connector main body 11 and outside the inner sleeve 17, respectively. The outer sleeve 13 has a locking pin 15 projecting from an inner circumferential surface close to a front end of the outer sleeve 13. A ball accommodation hole 22, an inlet groove 26, and a circumferential direction groove 28 are formed in a tubular member 21 of the counterpart connector 20. When the connector main body 11 is inserted into the tubular member 21, an engaging ball 23 accommodated in the ball accommodation hole 22 becomes engaged with the annular groove 113 and the locking pin 15 becomes engaged with the inlet groove 26, allowing the connectors to be connected with each other.

Abstract: An object of the present invention is to realize a loop through circuit, in an active connector, securely having a preferable mismatching attenuation characteristic and having a preferable signal transmission characteristic, with respect to an input port, an output port, and an internal port, without providing a special circuit outside the connector. A connector base part has the input port inputting an external signal, the output port outputting a loop through signal, and the internal port outputting a signal into a device. First and second matching circuits, an equalizer circuit, a dividing circuit, and a driving circuit are stored in the connector base part. The matching circuit is supplied with an external signal input from the input port. The dividing circuit divides a signal to be input to generate first and second divided signals, and outputs them to the internal port and the output port. The equalizer circuit compensates for a frequency characteristic and/or loss of a signal to be input.

Abstract: A semiconductor laser comprises a semiconductor laser chip, a conductive mount, an insulation block, and an electrode. The semiconductor laser chip and the insulation block are bonded to a surface of the conductive mount, and an upper surface of the electrode and the semiconductor laser chip are electrically connected. The thickness of the electrode is no less than 0.3 mm.

Abstract: An object of the present invention is to realize a loop through circuit, in an active connector, securely having a preferable mismatching attenuation characteristic and having a preferable signal transmission characteristic, with respect to an input port, an output port, and an internal port, without providing a special circuit outside the connector. A connector base part has the input port inputting an external signal, the output port outputting a loop through signal, and the internal port outputting a signal into a device. First and second matching circuits, an equalizer circuit, a dividing circuit, and a driving circuit are stored in the connector base part. The matching circuit is supplied with an external signal input from the input port. The dividing circuit divides a signal to be input to generate first and second divided signals, and outputs them to the internal port and the output port. The equalizer circuit compensates for a frequency characteristic and/or loss of a signal to be input.

Abstract: Provided is a ball-lock connector wherein a connector which has a relatively small diameter and which can be smoothly attached or detached, is realized at low cost. Ball storage holes (23) are formed in a tubular member (20), and engagement balls (11) are contained in the ball storage holes (23). An inner sleeve (30) and an outer sleeve (40) are disposed on the outside of the tubular member (20) so as to move in the axial direction. When a counterpart connector (70) is attached, each engagement ball (11) moves from a first position wherein a part of the engagement ball is projected from the inner peripheral surface (21) of the tubular member (20) to a second position which is close to a first inner peripheral surface (42) of an outer sleeve (40), wherein a part of the engagement ball is not projected from the inner peripheral surface (21), and thereafter, returns to the first position.

Abstract: Provided is a ball-lock connector wherein a connector which has a relatively small diameter and which can be smoothly attached or detached, is realized at low cost. Ball storage holes (23) are formed in a tubular member (20), and engagement balls (11) are contained in the ball storage holes (23). An inner sleeve (30) and an outer sleeve (40) are disposed on the outside of the tubular member (20) so as to move in the axial direction. When a counterpart connector (70) is attached, each engagement ball (11) moves from a first position wherein a part of the engagement ball is projected from the inner peripheral surface (21) of the tubular member (20) to a second position which is close to a first inner peripheral surface (42) of an outer sleeve (40), wherein a part of the engagement ball is not projected from the inner peripheral surface (21), and thereafter, returns to the first position.

Abstract: PROBLEMS To enable a single optical amplifier to function as a boost amplifier and a preamplifier. MEANS FOR SOLVING PROBLEMS By using a wavelength routing, a single optical amplifier can have the function of a boost amplifier and the function of a preamplifier. Moreover, by attenuating a transmission signal in advance, it is possible to adjust a gain difference required in the boost amplifier and the preamplifier.

Abstract: An active connector is provided that allows for simple designing of devices for high-speed wideband pulse signal transmission without specialized technical know-how in the use of connectors. A connector base has a first connection terminal and a second connection terminal, and houses a first matching circuit, a second matching circuit, and a buffer circuit. The first connection terminal and the second connection terminal can be used as an internal port electrically coupled to a device circuit and an external port electrically coupled to a transmission line, respectively. An input signal inputted into the first connection terminal is supplied to the first matching circuit. The second matching circuit supplies an output signal to the second connection terminal. A buffer circuit between the first matching circuit and the second matching circuit inhibits mutual influences between the input signal and the output signal.

Abstract: An active connector is provided that allows for simple designing of devices for high-speed wideband pulse signal transmission without specialized technical know-how in the use of connectors. A connector base has a first connection terminal and a second connection terminal, and houses a first matching circuit, a second matching circuit, and a buffer circuit. The first connection terminal and the second connection terminal can be used as an internal port electrically coupled to a device circuit and an external port electrically coupled to a transmission line, respectively. An input signal inputted into the first connection terminal is supplied to the first matching circuit. The second matching circuit supplies an output signal to the second connection terminal. A buffer circuit between the first matching circuit and the second matching circuit inhibits mutual influences between the input signal and the output signal.

Abstract: An optical termination unit is provided for allowing an optical cable to be easily projected straight in any of five directions, including upward, downward, rightward, leftward, and rearward directions, thereby enhancing the efficiency of cable laying or the like. An end securing box 150 of the optical termination unit 100 includes a two-stage multi-tiered box structure separable to two bodies, the first stage including a clamp tray 120 and the second stage including a fusion tray 130 which is provided with a lid (lid 140) thereupon. An inlet Im (m=1, 2, 3, 4, 5) for introducing the end of a second optical cable to be embedded in a wall or a pillar is provided at each face of the enclosure. Holes H1 and H2 formed on the rear face 115 are provided for securing the end securing box 150 with a nylatch n. The end securing box 150 having a rectangular solid shape has multiple holes formed therein.

Abstract: By using wavelength division multiplexing technologies, redundant star topology network is constructed on a ring-shaped optical fiber network. Edge-switches 5a, 5b, 5c, and 5d are connected to client station groups 6a, 6b, 6c, and 6d are connected, respectively. The edge-switches 5a, 5b, 5c, and 5d are connected to edge optical transport device 2a, 2b, 2c, and 2d. Core-switches 4a and 4b are connected to a core optical transport device 1. The edge optical transport device 2a, 2b, 2c, 2d, and the core optical transport device 1 are connected to a ring-shaped single optical fiber 3. A communication circuit 7 is formed among core optical transport device 1, edge optical transport devices 2a, 2b, 2c, and 2d, by using wavelength division multiplexing technologies.

Abstract: An optical termination unit is provided for allowing an optical cable to be easily projected straight in any of five directions, including upward, downward, rightward, leftward, and rearward directions, thereby enhancing the efficiency of cable laying or the like. An end securing box 150 of the optical termination unit 100 includes a two-stage multi-tiered box structure separable to two bodies, the first stage including a clamp tray 120 and the second stage including a fusion tray 130 which is provided with a lid (lid 140) thereupon. An inlet Im (m=1, 2, 3, 4, 5) for introducing the end of a second optical cable to be embedded in a wall or a pillar is provided at each face of the enclosure. Holes H1 and H2 formed on the rear face 115 are provided for securing the end securing box 150 with a nylatch n. The end securing box 150 having a rectangular solid shape has multiple holes formed therein.

Abstract: A coil spring 213 is sandwiched between a coil spring adjoining wall 202a of the female plug shell 202 and the edge of the large ring of the slide sleeve 203 and is held inside of the slide cover 215 in which the coil spring 213 can expand and contract freely. Sliding of the slide cover 215 in the positive direction of the x axis is restricted because the coil spring 213 or the slide sleeve 203 is adjacent to the coil spring adjoining wall 202a, and sliding in the negative direction of the x axis is restricted by a caulking 210. The caulking 210 caulks its bottom part, or the end part 215b which is placed at the opposite side of the opening part of the slide cover 215, to inside of the female plug 200. By applying this calking 210, problems described above can be solved.

Abstract: A screwing part 1220 is inserted into a large through-hole 1110 from its front side and is screwed together with a male screw part of a jig. A convex part 1230 in an approximately ring shape is formed at a back end part of the screwing part 1220. The convex part 1230 is adjacent to a fitting part 1111 which is made of an approximately ring convex part projecting toward inside of the large through-hole 1110. The back of the fitting part 1111 is adjacent to a front end opening part 1310 of a back tubular part 1300. In short, the fitting part 1111 of the adaptor main body 1110 is sandwiched between the convex part 1230 and the front end opening part 1310. By inserting and pressing the back end opening part 1210 of the front tubular part 1200 into the front end opening part 1310 of the back tubular part 1300, the front tubular part 1200 and the back tubular part 1300 are connected and fixed with each other. Sign ? represents their pressing part.

Abstract: A ferrule holder and a coil spring are provided in a main body formed in an approximately tube shape. A cable adaptor including a front opening part at a large diameter part is inserted from a back opening part into the main body having slits and. A first small diameter part of the main body fits with the large diameter part of the cable adaptor and prevents the cable adaptor from translating in the z-axis direction. And the second small diameter part of the main body controls transfer of the ferrule holder in the z-axis direction. At the forward part of the large diameter, a taper part which helps to insert the cable adaptor is formed around the circuit of the optical axis. Each slit formed at the back opening part also helps to insert the cable adaptor.

Abstract: The detector comprises a loopback unit 10 which is connected to a connector formed at one end of an optical camera cable, an optical loop fiber 11 connecting a first optical fiber 31 and a second optical fiber 32, and a short-circuit wiring 12 which short-circuits plural electric lines of the optical camera cable. The detector also comprises a measuring unit 40 comprising a transmission loss measuring part which is connected to a connector formed at the other end of the optical camera cable and measures transmission loss between the first optical fiber and the second optical fiber, a resistivity measuring part which measures resistivity between electric lines, a disconnection detecting part which detects connection or disconnection of electric lines by using measured resistivity, and a display part, which displays the result of transmission loss measured by the transmission loss measuring part and connection or disconnection detected by the disconnection detecting part.

Abstract: The detector comprises a loopback unit 10 which is connected to a connector formed at one end of an optical camera cable, an optical loop fiber 11 connecting a first optical fiber 31 and a second optical fiber 32, and a short-circuit wiring 12 which short-circuits plural electric lines of the optical camera cable. The detector also comprises a measuring unit 40 comprising a transmission loss measuring part which is connected to a connector formed at the other end of the optical camera cable and measures transmission loss between the first optical fiber and the second optical fiber, a resistivity measuring part which measures resistivity between electric lines, a disconnection detecting part which detects connection or disconnection of electric lines by using measured resistivity, and a display part, which displays the result of transmission loss measured by the transmission loss measuring part and connection or disconnection detected by the disconnection detecting part.