WO2004013675A1 - 光スイッチ及び光スイッチユニット - Google Patents
光スイッチ及び光スイッチユニット Download PDFInfo
- Publication number
- WO2004013675A1 WO2004013675A1 PCT/JP2003/008688 JP0308688W WO2004013675A1 WO 2004013675 A1 WO2004013675 A1 WO 2004013675A1 JP 0308688 W JP0308688 W JP 0308688W WO 2004013675 A1 WO2004013675 A1 WO 2004013675A1
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- WIPO (PCT)
- Prior art keywords
- optical
- optical fiber
- side optical
- incident
- optical fibers
- Prior art date
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/35—Optical coupling means having switching means
- G02B6/351—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements
- G02B6/3512—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements the optical element being reflective, e.g. mirror
- G02B6/3514—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements the optical element being reflective, e.g. mirror the reflective optical element moving along a line so as to translate into and out of the beam path, i.e. across the beam path
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/35—Optical coupling means having switching means
- G02B6/351—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements
- G02B6/3524—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements the optical element being refractive
- G02B6/3526—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements the optical element being refractive the optical element being a lens
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/35—Optical coupling means having switching means
- G02B6/354—Switching arrangements, i.e. number of input/output ports and interconnection types
- G02B6/3562—Switch of the bypass type, i.e. enabling a change of path in a network, e.g. to bypass a failed element in the network
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/35—Optical coupling means having switching means
- G02B6/3564—Mechanical details of the actuation mechanism associated with the moving element or mounting mechanism details
- G02B6/3568—Mechanical details of the actuation mechanism associated with the moving element or mounting mechanism details characterised by the actuating force
- G02B6/3572—Magnetic force
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/35—Optical coupling means having switching means
- G02B6/3564—Mechanical details of the actuation mechanism associated with the moving element or mounting mechanism details
- G02B6/358—Latching of the moving element, i.e. maintaining or holding the moving element in place once operation has been performed; includes a mechanically bistable system
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/35—Optical coupling means having switching means
- G02B6/3564—Mechanical details of the actuation mechanism associated with the moving element or mounting mechanism details
- G02B6/3582—Housing means or package or arranging details of the switching elements, e.g. for thermal isolation
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/35—Optical coupling means having switching means
- G02B6/354—Switching arrangements, i.e. number of input/output ports and interconnection types
- G02B6/3544—2D constellations, i.e. with switching elements and switched beams located in a plane
- G02B6/3546—NxM switch, i.e. a regular array of switches elements of matrix type constellation
Definitions
- the present invention relates to an optical switch, and more particularly, to an optical redundancy switching switch in an optical communication system, and an optical switch unit further including a control circuit.
- optical switches capable of performing optical redundancy switching are known.
- Japanese Patent Application Laid-Open No. 2000-321512 discloses that an optical fiber on the input side and an optical fiber on the output side are arranged such that their optical paths are orthogonal to each other, and at the intersection of each optical path inside and outside the optical path.
- an optical switch in which mirrors, which are reflecting members inclined up and down 45 degrees, are respectively arranged.
- the optical switch In the optical switch, a mirror and an actuator for raising and lowering each mirror must be arranged at the intersection of each optical path, which is expensive. Further, the core of the optical fiber is about 10 m in diameter, and it is necessary to adjust the optical path formed via the mirror with high precision.However, the optical switch has many adjustment points and is complicated. . Disclosure of the invention
- the present invention provides an optical switch as a means for solving the above problems
- An incident side optical transmission member comprising a plurality of incident side optical fibers
- a plurality of outgoing-side optical fibers respectively disposed so as to face each of the incoming-side optical fibers.
- An output side optical transmission member made of a fiber
- At least one spare optical fiber that functions as either the launch or exit side
- Reflecting means for moving the optical fiber so as to be positioned with respect to any one of the optical fibers, reflecting the optical signal, and enabling transmission of the optical signal between the spare optical fiber and another optical fiber;
- Driving means for moving the reflecting means so as to be positioned with respect to any one of the optical fibers
- the present invention provides, as a means for solving the above problems, an optical switch, a plurality of incident side optical fibers,
- a plurality of main emission side optical fibers respectively disposed so as to face the respective incident side optical fibers, and a single preliminary emission side optical fiber;
- Reflecting means for reflecting an optical signal from any one of the incident-side optical fibers
- Driving means for moving the reflecting means with respect to any one of the incident side optical fibers
- the present invention provides, as a means for solving the above problems, an optical switch, a plurality of main incident side optical fibers, a single preliminary incident side optical fiber ⁇ , and each main incident side optical fiber.
- a plurality of emission-side optical fibers respectively disposed so as to face each other;
- the optical signal from the pre-incident optical fiber is output to one of the outgoing optical fibers.
- Reflection means for reflecting light are provided,
- Driving means for moving the reflection means with respect to any one of the output side optical fibers
- an optical switch is provided on a plurality of main incident side optical fibers, and a single preliminary incident side optical fiber, and each of the main incident side optical fibers.
- a plurality of main emission-side optical fibers respectively arranged so as to face each other, and a single preliminary emission-side optical fiber arranged so as to face the preliminary incidence-side optical fiber;
- Reflecting means for moving the optical fiber so as to be positioned with respect to any one of the optical fibers, reflecting the optical signal, and enabling transmission of the optical signal between the spare optical fiber and another optical fiber;
- Driving means for moving the reflecting means so as to be positioned with respect to any one of the optical fibers
- the present invention provides, as means for solving the above problems, an optical switch comprising: an incident side optical transmission member including a plurality of incident side optical fibers; and an emission side optical transmission member including a plurality of exit side optical fibers. At least one spare optical fiber functioning as either one of the incident side and the outgoing side is juxtaposed and integrated,
- optical signals from each of the incident-side optical fibers are reflected by fixed reflecting means to transmit the optical signals to the corresponding one of the emitting-side optical fibers, respectively.
- a movable reflecting means movable via a driving means so that it can be positioned with respect to any one of the optical fibers, and reflects an optical signal so that light is reflected between the spare optical fiber and another optical fiber. It is configured to enable signal transmission.
- the present invention also provides, as a means for solving the above-mentioned problems, an optical switch comprising: a plurality of input-side optical fibers; a plurality of main output-side optical fibers; and a single preliminary output-side optical fiber.
- an optical switch comprising: a plurality of input-side optical fibers; a plurality of main output-side optical fibers; and a single preliminary output-side optical fiber.
- the optical signal from each incident-side optical fiber is reflected by a fixed reflecting means to transmit the optical signal to each corresponding main-emission-side optical fiber.
- the optical path length can always be set to a constant size regardless of the moving position of the reflecting means, so that insertion loss can be suppressed. preferable.
- the reflecting means is formed of a reflecting surface formed by pressing at one end of a metal bar, pressing at one end of a glass bar, or by injection molding, since processing becomes easy.
- the optical switch having the above-described configuration and the control unit that controls the driving of the driving unit be housed in a single casing, since a compact configuration can be achieved.
- FIG. 1 is an exploded perspective view showing components other than the optical switch of the optical switch according to the first embodiment.
- FIG. 2 is an exploded perspective view of the optical switch according to the first embodiment.
- FIG. 3 is a plan view of the optical switch unit according to the first embodiment.
- FIG. 4A is a sectional view taken along the lines A, B, C, and D of FIG. 3, and FIG. 4B is a partially enlarged view thereof.
- FIG. 5 is a sectional view of each optical transmission member shown in FIG.
- FIG. 6 is a partially enlarged view of FIG.
- FIG. 7 is an enlarged perspective view showing the movable reflecting member of FIG.
- FIG. 8A is a plan view of an optical switch unit according to the second embodiment, and FIG. 8B is a cross-sectional view thereof.
- FIG. 9 is a partially enlarged plan view of the optical switch unit according to the third embodiment.
- FIG. 10 is an exploded perspective view of the optical switch according to the fourth embodiment.
- 11A, 11B, and 11C are a plan view, a front view, and a side view of the optical switch according to the fourth embodiment.
- FIGS. 12A and 12B are a partially enlarged plan view and a partially enlarged front view showing the optical switch according to the fourth embodiment before operation, and FIGS. 12C and 12D show the fourth embodiment.
- FIG. 6 is a partially enlarged plan view and a partially enlarged front view showing the optical switch after the operation.
- FIGS. 13A, 13B, and 13C are a perspective view, a side view, and a cross-sectional view of a base according to the fourth embodiment.
- 14A, 14B, 14C, and 14D are a plan view, a front view, a cross-sectional view taken along line CC, and a cross-sectional view taken along line DD of the base according to the fourth embodiment.
- FIGS. 15A and 15B are a plan view and a front view of a state where the mirror port and the prism according to the fourth embodiment are combined.
- FIG. 16A and 16B are a plan view and a side view of an adjustment plate according to the fourth embodiment.
- FIG. 17 is an exploded perspective view of an optical path switching ut according to the fourth embodiment.
- 18A, 18B, and 18C are a plan view, a front view, and a side view of an optical path switching unit according to the fourth embodiment.
- 19A, 19B, and 19C are a plan view, a front view, and a central cross-sectional view of a movable block according to the fourth embodiment.
- FIGS. 20A and 20B are a cross-sectional view and a bottom view of the rod-like reflecting means attached to the holder according to the fourth embodiment.
- FIG. 21 is a schematic diagram for explaining an operation method of the movable block according to the fourth embodiment.
- 22A, 22B, 22C, and 22D are a plan view, a front view, a cross-sectional view, and a right ftlj plan view of the case according to the fourth embodiment.
- FIGS. 23A, 23B, and 23C are a plan view, a front view, and a side view of the optical switch according to the fifth embodiment.
- FIGS. 24A and 24B are a partially enlarged plan view and a partially enlarged front view showing a state before the operation of the optical switch according to the fifth embodiment
- FIGS. 24C and 24D are diagrams showing an operation of the optical switch according to the fifth embodiment. It is a partial enlarged plan view showing the back, and a partial enlarged front view.
- FIGS. 25A and 25B are a partially enlarged plan view and a partially enlarged front view showing a state before the operation of the optical switch according to the sixth embodiment.
- FIGS. 25C and 25D are diagrams showing the operation of the optical switch according to the sixth embodiment. It is a partial enlarged plan view showing the back, and a partial enlarged front view.
- FIG. 1 to 4 show an optical switch unit according to the present embodiment.
- the optical switch is placed inside a metal housing 1 such as Kovar aluminum. 2 and a printed circuit board 3 on which a control circuit is formed.
- the optical switch 2 includes an incident-side optical transmission member 4, a reflecting member 5, a driving member 6, and an emission-side optical transmission member 7.
- the incident side optical transmission member 4 and the exit side optical transmission member 7 are composed of an optical fiber array 8 (multi-core optical fiber 1) and a lens array 9.
- the optical fiber array 8 is a flat cape-like shape in which a plurality of incident-side optical fibers 4a or outgoing-side optical fibers 7a are juxtaposed and integrated, and is drawn out from one end surface of the housing 1.
- a core having a diameter of 125 ⁇ in which the outer periphery of a core 10 having a diameter of 9 m is covered with a cladding 11 is used. Eight of them are integrated in the emission-side optical transmission member 7, and nine are arranged in parallel.
- One of the emission side optical transmission members 7 is a spare optical fiber 1 b.
- the lens array 9 has a collimating lens 13 made of a transparent resin at a position corresponding to each of the optical fibers 1 on the surface of the glass substrate 14.
- the reflection member 5 includes a movable reflection member 5a and a fixed reflection member 5b.
- the movable reflective member 5a is formed by pressing or forming the tip of a wire made of copper, aluminum, stainless steel, or an alloy thereof (such as brass), or glass-forming resin.
- the reflection surface 19a is formed.
- the reflecting surface 19a changes the direction of the optical signal from the incident side optical fiber 14a at a right angle, and makes it incident on the emitting side optical fiber 17a.
- a wire having a diameter of 0.3 mm is used for the movable reflecting member 5a, and the reflecting surface 19a is pressed or formed to a position passing through the center, and further, Au is vacuumed.
- the fixed reflecting member 5b has a substantially triangular prism shape made of glass, and A1 or Au is vacuum-deposited on the reflecting surface 19b, and the optical signal reflected by the movable reflecting member 5a is again reflected. The light is reflected and made incident on the spare optical fiber 7 b of the emission-side optical transmission member 7.
- the driving member 6 includes a polarized electromagnet unit 20 and a stepping motor 21.
- the polarized electromagnet unit 20 includes a spool 33 around which a coil 33a is wound, and the reflecting member 5 is moved up and down through each of the components described later, so that the reflecting surface 19a is positioned in the optical path. Position and ⁇ so that the optical signal is not interrupted. And position each.
- the stepping motor 21 has a rotary shaft connected to a screw shaft 22, and is used for reciprocating on a moving table 30 described later.
- the polarized electromagnet unit 20 may be formed of a non-polar electromagnet unit.
- the support structure of the incident side light transmission member 4, the emission side light transmission member 7, and the driving member 6 is as follows.
- the base 23 is fixed to one end of the housing 1. As shown in FIG. 2, the base 23 has opposing walls 23 a and 23 b protruding from both end edges.
- An auxiliary base 24 is fixed to the upper surface of the base 23.
- the auxiliary table 24 has opposing walls 24a and 24b protruding at a position orthogonal to the base 23.
- a guide bin 25 protrudes from the upper surface of the auxiliary table 24, and a support table 26 is disposed above the guide bin 25.
- the position of the support 26 can be finely adjusted by adjusting screws 27 provided on the opposing wall of the base 23. However, if an automatic alignment machine is used, the adjustment screw 27 is unnecessary.
- a groove 28 is formed on the upper surface of the support base 26 by an opposing wall, and the incident-side optical transmission member 4 and the emission-side optical transmission member 7 are provided in the groove 28 and are located on a straight line.
- a guide hole 29 is formed in the center of the upper surface of the support 26.
- the moving table 30 is placed on the auxiliary table 24 and is urged to the right in FIG. 4 by a spring 31 provided on the opposing wall, and is driven by the stepping motor 21 via the screw shaft 22 as shown in FIG. It can move back and forth in the middle and left and right.
- a holding member 32 is integrated with a central portion of the moving table 30 by screwing, and a polarized electromagnet unit 20 is disposed in the accommodation portion 32a.
- An iron core 34 is provided in the center hole of the spool 33 constituting the polarized electromagnet unit 20, and the iron core 34 is connected to a substantially U-shaped yoke 35 disposed on the outer periphery of the coil 33a.
- a cylindrical permanent magnet 36 (the direction of magnetization / magnetization is up and down) and a rectangular plate-shaped iron piece 37 are arranged, and a flange spring 3 is provided.
- the reflecting member 5 integrated with the supporting portion 40 via the magnetic shield 8 and the magnetic shielding plate 39 can be moved up and down freely.
- the magnetic shielding plate 39 is positioned in a guide recess 32 b (FIG. 4B) formed on the upper surface of the holding member 32.
- the movable reflection member 5 a is temporarily fixed to the support portion 40 by the force S, and after adjusting the reflection surface 19 a to a desired angle (here 45 degrees) with respect to the optical signal from the incident side optical transmission member 4. , Be fixed.
- the drive control of the drive member 6 and the polarized electromagnet unit 20 is performed based on a control signal from a control circuit formed on the print substrate 3.
- An assembling method of the optical switch having the above configuration will be described.
- the incident side optical transmission member 4 and the exit side optical transmission member 7 are aligned on the support base 26 so that the optical axes are aligned, and are screwed at four locations, thereby temporarily. Position and fix with epoxy resin.
- screwing is not necessary.
- the core 34 is fixed with epoxy resin or the like.
- the yoke 35 and the spool 33 are sequentially inserted and positioned, and then fixed.
- the movable member 42 is formed by integrating the support portion 40, the flange spring 38, the iron piece 37, and the permanent magnet 36, and is disposed and temporarily fixed in the guide concave portion 32b of the holding member 32.
- a magnetic shield plate 39 made of a non-magnetic material is arranged in the guide concave portion 32b, and the magnetic ring 41 is fixed to the magnetic shield plate 39.
- the polarized electromagnet unit 20 is energized, and the operation is checked whether or not the permanent magnet 36 can be attracted against the elastic force of the flange spring 38. If the operation is confirmed, the movable member 42 is fixed to the holding member 32. Then, the movable reflection member 5a is attached to the support portion 40, and after adjusting the inclination and the like, it is fixed.
- the holding member 32 to which the movable reflecting member 5a and the like are attached is attached to the guide hole 30a of the movable base 30 and is temporarily fixed with a screw.
- the catching stand 24 is attached to the base 23, the moving stand 30 is attached to the auxiliary stand 24 via a spring 31, and the stepping motor 21 is fixed.
- the screw shaft 22 connected to the rotation shaft of the stepping motor 21 is screwed to the movable base 30.
- the lead wires from the stepping motor 21 and the polarized electromagnet cut 20 are connected to predetermined positions on the printed circuit board 3.
- the fixed reflecting member 5b is temporarily fixed to the support 26, and the support 26 is temporarily fixed to the base 23, respectively. Then, if the positions of the incident-side optical transmission member 4, the emission-side optical transmission member 7, the movable reflecting member 5a, and the fixed reflecting member 5b can be finely adjusted, and the transmission path of the optical signal can be set to a desired position, These are fixed with an epoxy resin or the like.
- the base 23 and the printed circuit board 3 on which various electronic components are mounted are fixed in the housing 1 with screws or the like, closed with the lid 43, and the fitting surface is sealed.
- optical switch unit having the above configuration.
- optical signals are transmitted and received between each of the incident side optical fibers 4a of the incident side optical transmission member 4 and each of the exit side optical fibers 17a of the exit side optical transmission member 7.
- the control circuit excites the polarized electromagnet unit 20 and the movable type
- the reflecting surface 19a of the reflecting member 5a is moved below the plane on which the transmission path is formed.
- the stepping motor 21 is driven to position the movable reflecting member 5a below the corresponding transmission path. Therefore, the movable reflection member 5a does not block the optical transmission path.
- the polarized electromagnet unit 20 is reversely excited, and the repulsive force of the permanent magnet 36 and the elastic force of the flange panel 38 change the reflecting surface 19 a of the movable reflecting member 5 a to the corresponding optical transmission line. Position.
- the optical signal from the incident side optical fiber 14a passes through the reflective surfaces 19a and 19b of the movable reflecting member 5a and the fixed reflecting member 5b, and the spare optical fiber 17M It becomes possible to enter.
- the driving of the stepping motor 21 and the polarized electromagnet unit 20 is performed only during the movement of the movable reflecting member 5a, and power is not wasted. Also, since only one reflecting member 5 and one driving member 6 are required, the configuration can be simplified and the device can be manufactured at low cost.
- the movable-side reflecting member 5a is raised and lowered by using the polarized electromagnet cut 20 to provide the fixed-type reflecting member 5b, and the output-side optical transmission member 7
- the optical fiber 7b of this embodiment may be configured as in the second embodiment shown in FIG. That is, in FIG. 8, the movable reflecting member 5a is inserted into the optical path by a rotational motion through a force member 51 integrated with the rotating shaft by driving the motor 50, thereby realizing switching of the optical path.
- the spare optical fiber 17b may be configured to be movable together with the movable reflecting member 5a. According to this, no matter where the movable reflective member 5a moves, the optical path length to the spare optical fiber 17b can always be a constant size, and insertion loss can be suppressed. It is preferable in that it becomes.
- the moving table 30 is reciprocated using the stepping motor 21 and the screw shaft 22.
- the moving table 30 may be reciprocated by the voice coil motor. Good.
- a spare optical fiber is provided on the emission side. However, it may be provided on the incident side, or may be provided on both sides. Further, two or more spare optical fibers may be provided. In this case, the fixed reflecting member 5b may be made movable so that a spare optical fiber capable of transmitting an optical signal can be selected.
- FIG. 9 shows a third embodiment in which a spare optical fiber 14b is provided on the incident side.
- a spare optical fiber 14b is provided on the incident side.
- an optical signal is output from the spare optical fiber 14b, and the direction is changed by the fixed reflecting member 5b.
- the movable reflecting member 5a moved in the same manner as in the above-described embodiment can enter the outgoing optical fiber a facing the incident optical fiber 4a in which the problem has occurred.
- the incident-side optical fiber and the outgoing-side optical fiber are integrated in parallel, and there is an advantage that the wiring space can be saved. .
- the optical switch according to the fourth embodiment generally includes a base 100, an input / output block 110, an unlock block 120, an optical path switching unit 130, and a case 180 (FIG. 2 2).
- the base 10 is made of a plate-shaped resin molded product or ceramic, and has one side of the bottom surface of the recess 101 provided on the upper surface thereof.
- a pedestal portion 102 that is one step higher is provided on the other side, and a recess 103 that is one step lower is formed on the other side.
- Positioning protrusions 104 are provided at both side edges of the upper surface of the pedestal portion 102 with predetermined pitches.
- terminal holes 105 for inserting terminals 123 of an electromagnetic relay 120 described later are provided at a predetermined pitch in both j corners of the bottom surface of the concave portion 103.
- a pair of positioning protrusions 106 are provided between the pedestal portion 102 and the concave portion 103 on the bottom surface of the base 100, and the ⁇ portion 103 A pair of terminal holes 107, 107 and an escape hole 108 are provided between the opening edge.
- the input / output block 110 is provided on one end side of the block body 111 with a plurality of incident side optical fibers 1 1 2 and emission side optical fibers 1 arranged side by side in a single flat cable shape. 13 is inserted as an optical transmission line.
- the incident side optical fiber 1 1 1 2 And the output-side optical fiber 1 13 are arranged in two upper and lower stages in the block main body 1 11, and the output fibers are arranged so as to correspond to the incident-side optical fibers 1 1 2 arranged in the lower stage, respectively.
- the side optical fibers 113 are arranged on the upper side. However, as shown in FIG. 12, one of the plurality of incident-side optical fibers 111, 2a has the same height as the exit-side optical fiber 113, as shown in FIG.
- one preliminary outgoing-side optical fiber 1 1 3 a is on the same plane as the other outgoing-side optical fiber 1 13, and It is juxtaposed outside. For this reason, the preliminary incident side optical fiber 1-112a and the preliminary exit side optical fiber 1-113a are located on the same plane.
- the input / output block 110 is pre-filled on the other end side of the block main body 11 1, and the lens is positioned so as to correspond to the tip end surfaces of the output side optical fibers 1 1 2 and 1 13 respectively.
- Array 114 is joined together.
- the lens array 114 has a surface except a back surface of a glass substrate covered with a transparent resin.
- a collimating lens is integrally provided at a predetermined pitch on the front surface of the lens array 114 at a position corresponding to the optical fibers 112, 113.
- prisms 117 are mounted via mirror blocks 111, 116 fixed to both sides of the front of the lens array 114, respectively.
- the optical signal input from the input side optical fiber 111 is output to the output side optical fiber 113 via the lens array 114 and the prism 117.
- the mirror blocks 115 and 116 have reflecting surfaces 115a and 116a of which the surfaces facing each other are 45 degrees. For this reason, the preliminary incident side optical fiber 1 1a and the preliminary exit side optical fiber 1 1a are connected via the lens array 114, the mirror block 115, 116, and a movable reflecting member 173 described later. 3a forms an optical path.
- the input / output block 110 is an adjustment plate 1
- the bonding is integrated with the base 102 of the base 100. Is done.
- the mouth release block 120 attaches the movable iron piece 121 to the seesaw. It is composed of an existing small electromagnetic relay supported so as to move in one motion. The excitation and demagnetization of the built-in electromagnet block causes the protrusion 122 attached to one end of the movable iron piece 121 to move up and down. Then, the lock release block 120 is bonded and fixed after the terminal 123 is inserted into the end hole 105 of the concave portion 103 provided in the base 100.
- the optical path switching unit 130 as shown in FIGS. 17 and 18, comprises a damper holder 140 mounted on one side of the support plate 131 and a movable block 150 disposed on the other side, and a pair of upper and lower supports.
- a damper holder 140 mounted on one side of the support plate 131 and a movable block 150 disposed on the other side, and a pair of upper and lower supports.
- wires 160a and 160b By arranging wires 160a and 160b on both sides, it is connected and integrated with a total of four support wires.
- the supporting wires 160a and 160b are shown only in FIG.
- the support plate 13 1 is formed by stamping a thin iron plate into a substantially rectangular frame shape, and has a screw hole 1 32 a formed at the center of one short side 132, and an inner edge thereof. The pair of positioning tongue pieces 133 are cut and raised.
- a short side 134 on the other side of the support plate 131 is formed by cutting and raising both side edges to form opposing walls 135a and 135b serving as yokes.
- Plate-shaped permanent magnets 161a and 161b are integrally joined to the inner surfaces of the opposed walls 135a and 135b, respectively. However, the facing magnetic poles of the permanent magnets 16 1 a and 161 b are different.
- the short side 134 has positioning holes 136a and 136a formed at the bases of both ends thereof, and three positioning tongue pieces 1337a and 1337 from its outer edge. b, 137a extend horizontally. For this reason, since a movable block 150 described later is always supported by at least two of the positioning tongue pieces, it is possible to reliably prevent the movable block 150 from falling off due to an impact during transportation or the like. Further, a positioning receiving portion 162 is bridged through a screw hole 138a provided near the inner edge of the short side 134 (FIGS. 10 and 11B). A separate V-groove member 163 shown in FIG. 21 is fixed to the upper surface of the positioning receiver 162 (FIG. 18B).
- V-groove member 163 On the upper surface of the V-groove member 163, a plurality of V-grooves 163a are provided at a predetermined pitch.
- the V-grooves 163a are formed so as to have an inclination angle of 60 degrees, and are arranged so as to have a pitch of 1 to 2 of the pitch of the optical fibers (FIG. 10).
- the damper honoredder 140 is formed in a substantially U-shaped plane. It is a resin molded product, and the individual J faces of the cylindrical arms 141 and 142 extending in parallel from both ends are partially open. Further, the damper holder 144 has a through hole 144 in the center of the upper surface thereof, and positioning projections 144, 144 on both sides thereof. Further, as shown in FIG. 10, a pair of upper and lower support wires 160 a and 160 b passed through the tubular arm portions 141 and 142 respectively have one ends thereof. It is inserted into and supported by the printed circuit board 164 mounted on the side end surface of the damper holder 140, and the other end is connected to the movable block 150, respectively, and the middle part is the cylindrical arm.
- the printed circuit board 164 is provided with a pair of terminals 165 and 165 directed downward.
- a leaf spring 168 is fixed with a screw 169 via a spacer 167 which is positioned by engaging with the positioning protrusion 144.
- the movable block 150 has a rectangular holding portion 151 that can accommodate a coil 170 wound around the center thereof.
- the rectangular holding portion 15 1 has a pressing protrusion 15 2 formed at the center of the upper surface thereof to prevent one-side contact, and a pair of engaging protrusions 15 3 protruding respectively on the left and right side surfaces thereof.
- a connection piece 17 1 made of a conductive metal material is attached. One end of the connection piece 171 is connected to one end of the support wire 160a by a mouth or the like, and the other end is connected to a lead wire of the coil 170a. It is. Further, one end of the support wire 160b is fixed to the side surface of the movable block 150.
- the movable block 150 is inclined because it is supported by a pair of upper and lower support wires 160a and 160b arranged on both sides thereof, that is, a total of four support wires. It can be translated without any problem. Further, the coil 170 can be energized through the support wire 160a, and the direction of the current that can be energized can also be changed.
- first and second frame portions 15 4 and 15 5 are formed before and after the rectangular holding portion 15 1, respectively, and extend from the center of the upper surface of the first frame portion 15 4. 1 5 6 extends horizontally are doing.
- a rod-shaped reflecting member 173 (FIG. 20) having an upper portion fixed to a holder 172 is inserted and fixed into an insertion hole 156a provided at a free end of the extending portion 156. Therefore, the reflection surface 173a of the rod-shaped reflection member 173 protrudes from the lower surface of the extending portion 156.
- a positioning projection 154a is provided to project from the lower surface of the first frame portion 154.
- the second frame portion 155 has an alignment member 174 dropped into the fitting hole 157 provided at the center of the upper surface thereof from above, and the upper flat portion 174a is adhesively fixed to the second frame portion 155.
- the positioning member 174 has a through hole 174b at the center thereof for weight reduction, and a pair of positioning ridges 174c project from the lower surface thereof (see FIG. twenty one ) .
- the distance between the positioning ridges 174c is formed so as to be an integral multiple of the pitch of the V groove 163a provided in the V groove member 163.
- the positioning ridge 174c is engaged with the V groove 163a of the V groove member 163, the positioning member 174 and, consequently, the movable block 150 force S are positioned.
- the holding piece 158 extending from the second frame part 155 incorporates the coil 170 wound around the rectangular holding part 15 1, or the supporting piece 161 a, It is used when connecting 160b etc.
- the case 180 is a resin box body that can be fitted to the base 100 on which the internal components are mounted, and is integrally provided in a single flat cable shape on one end surface. There are provided through holes 181 through which a plurality of incident-side optical fibers 112 and outgoing-side optical fibers 113 are extracted.
- a protrusion 122 is attached and bonded to one end of a movable iron piece 121 of an electromagnetic relay 120 which is a lock release block. Then, the electromagnetic relay 120 is placed in the concave portion 103 of the base 100 and bonded and integrated, so that the terminal 123 projects from the terminal hole 105.
- a pair of upper and lower supporters 160a and 160b are inserted into the cylindrical arms 141 and 142 of the damper holder 140, and one end is inserted into the printed circuit board 164 and soldered.
- the support wires 16a and 16Ob are held by filling the arms 141 and 142 with a damper agent. And support play G.
- the damper holder 140 is positioned on the short side 132 via the positioning tongue piece 133 of FIG. Due to the presence of the tongue pieces 133, 133, positioning accuracy and adhesive strength can be increased.
- plate-like permanent magnets 16 1 a and 16 1 b are arranged on the opposing surfaces of the opposing walls 135 a and 135 b of the support plate 13 1 so that the opposing magnetic poles are different. Then, the positioning receiving portion 152 on which the V-groove member 153 is mounted is bridged and fixed through the screw holes 138a and 138a of the support plate 131.
- the coil 170 wound around the rectangular holding portion 15 1 of the movable block 150 is assembled, and the lead wire is soldered to one end of a connecting piece 171, which is attached to both side surfaces of the movable block 150. .
- the positioning member 174 is fitted into the fitting hole 157 of the second frame portion 155 from above, and bonded and integrated.
- a voice coil motor is formed by fitting the first and second frame portions 154 and 155 to the opposing walls 135a and 135b of the support plate 131, respectively.
- the tip of the support wire 160a is attached to one end of the connection piece 171 provided on both sides of the movable block 150, and the tip of the remaining support wire 160b is attached to the movable block 150.
- the movable block 150 is swingably supported by a total of four support wires 160a and 160b.
- the support plate 131 of the optical path switching unit 130 in this state is positioned by fitting its positioning hole 136a into the positioning projection 106 provided in the recess 101 of the base 100.
- the adhesive is fixed to the base 100.
- a screw 169 is screwed into the support plate 131 via the through hole 143, and the damper holder 140 and the leaf spring 168 are screwed. Is fixed.
- the position of the panel 168 with respect to the electromagnetic relay 120 is adjusted by selecting the number of spacers 167.
- the movable block 150 Moving away from 68, the movable block 150 is pushed down by the spring force of the leaf spring 1 68, and the positioning ridge 1 74 c of the positioning member 174 is engaged with the V groove 163a of the V groove member 163. Be able to position. Also, the electromagnetic relay 120 is in an excited state, and the movable iron piece 121 rotates, and one end of the movable iron piece 121 When the protrusion 122 attached to the part pushes up the panel panel 168, the movable block 150 is released from the locked state and adjusted so that it can reciprocate along the permanent magnets 161a and 161b.
- the input / output block 110 is positioned and fixed to the pedestal portion 102 of the base 100 via the adjustment plate 118, and then is fixed to the base portion 102 of the movable block 150. After inserting the rod-shaped reflecting means 173 and adjusting the height, it is bonded and fixed via the holder 172.
- the protrusion 122 attached to the movable iron piece 121 does not abut on the leaf spring 168. For this reason, the spring force of the leaf spring 168 pushes down the pressing protrusion 15 2 of the movable block 150. At this time, the leaf spring 168 pushes down the position of the center of gravity of the movable block 150. Then, as shown in FIG. 21, the positioning ridges 174 c of the positioning member 174 provided on the movable block 150 are connected to the V-groove member 163 of the V-shaped member 163 bridged over the support plate 131. Engages.
- the optical signal can be accurately reflected at substantially the center of the reflecting surface 173a provided on the rod-shaped reflecting means 173.
- the positioning projections 154a provided on the lower surface of the first frame portion 154 of the movable block 150 are pressed against the positioning tongue pieces 1337b provided on the support plate 1331. Therefore, the movable block 150 is supported at three points of the positioning ridges 174c and 174c and the positioning projection 154a, and the positioning state of the rod-shaped reflecting means 173 can be stabilized.
- the movable iron piece 122 is rotated by exciting the electromagnetic relay 120, and the plate 122 is rotated by the projection 122.
- Spring 1 68 is pushed up.
- the pressing force of the leaf spring 168 is released, and the movable block 150 rises with the panel force of the supporting wires 160a and 160b.
- the positioning protrusion 17 4 c moves away from the V groove 16 3 a
- the positioning protrusion 15 5 4 a moves away from the positioning tongue 13 7 b force
- the movable block 15 0 force S reciprocates It becomes movable. Therefore, the rod-shaped reflecting means 173 can move to a desired position without interrupting the optical path.
- the coil 170 of the voice coil motor is energized to generate Lorentz force.
- the direction of energization to the coil 170 it is possible to generate a leftward or rightward Lorentz force on the movable block 150.
- the magnitude of the Lorentz force can be freely changed. Therefore, by adjusting the energizing direction and the applied voltage to the coil 170, the movable block 150 is moved to the desired position against the spring force of the supporting wires 160a and 160b. Can be moved. Then, with the movable block 150 moved to a desired position, the electromagnetic relay 120 is demagnetized, and the movable iron piece 122 is rotated to the initial state.
- the rod-shaped reflecting means 17 3 can be positioned at a predetermined position. After the movable block 150 can be positioned at a predetermined position, the coil 170 of the voice coil motor is demagnetized.
- a thin and compact structure can be achieved by using an existing electromagnetic relay.
- the voice coil motor is used to move the movable block 150, the responsiveness is good, and by supporting the movable block 150 at three points, a desired stable optical path can be reliably secured. There is.
- the force releasing the locked state by driving the plate panel 168 by using the electromagnetic relay 120 is not limited to the electromagnetic relay.
- the piezoelectric actuator May be used.
- the fifth embodiment has substantially the same basic configuration as that of the fourth embodiment described above, and differs from the fourth embodiment in the optical path configuration of the input / output block. Note that the same parts are given the same reference numerals and description thereof is omitted. That is, a plurality of the input side optical fibers 1 1 2 and the output side optical fibers 1 1 3 are arranged side by side on the same plane, and the pre-incidence is performed outside the outermost incident side optical fiber 1 1 1 2. The side optical fibers 1-112a are arranged on the same plane. Then, as shown in FIG.
- the reflection surface 115 inclined at 45 degrees with respect to the lens array 114 is arranged.
- a pair of mirror blocks 1 15 and 1 16 are arranged so as to have a and 1 16 a. For this reason, the optical signal output from the input side optical fiber 111 is emitted through the lens array 114, and the reflection surfaces 115a, 116a of the mirror blocks 115, 116. It is transmitted to the side optical fiber 1 1 3.
- the rod-shaped reflecting member is operated by the same operation as in the second embodiment described above.
- the 173 moves to a predetermined position without interrupting the optical path.
- the optical signal output from the spare incident side optical fiber 1 1 2 a is reflected by the lens array 1 1 4, the mirror lock 1 1 6, and the reflection surface 1 7 3 of the rod-shaped reflection means 1 7 3
- the light is input to the second output side optical fiber 113 through a.
- the sixth embodiment is substantially the same as the above-described fifth embodiment, as shown in FIG.
- the difference between the two is that the preliminary incident-side optical fiber 112a is arranged outside the plurality of incident-side optical fibers 112 arranged side by side on the same plane, and the incident-side optical fibers 111 arranged side by side.
- a preliminary emission side optical fiber -113a is arranged between the emission side optical fiber -113 and the emission side optical fiber -113. Therefore, the optical signal output from the input side optical fiber 112 is transmitted to the output side optical fiber 113 via the lens array 114 and the mirror blocks 116, 115.
- the optical signal output from the pre-incident-side optical fiber 1-112a passes through the lens array 114, the mirror block 116, and the reflecting surface 173a of the rod-like reflecting means 173. It is input to the pre-emission-side optical fiber 1-113a.
- the rod-shaped reflection is performed by the same operation as in the fifth embodiment.
- the member 173 moves to a predetermined position.
- the optical signal output from the pre-incident side optical fiber 1 1 2a is divided into a lens array 1 1 4, a mirror block 1 1 6,
- the light is input to the third output side optical fiber 113a via the reflecting surface 173a of the rod-shaped reflecting means 173.
- the present invention can be widely used in optical communication systems.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03741286A EP1542057A1 (en) | 2002-08-05 | 2003-07-09 | Optical switch and optical switch unit |
JP2004525782A JP3972935B2 (ja) | 2002-08-05 | 2003-07-09 | 光スイッチ及び光スイッチユニット |
US10/523,084 US20060115209A1 (en) | 2002-08-05 | 2003-07-09 | Optical switch and optical switch unit |
CA002494703A CA2494703A1 (en) | 2002-08-05 | 2003-07-09 | Optical switch and optical switch unit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-227668 | 2002-08-05 | ||
JP2002227668 | 2002-08-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004013675A1 true WO2004013675A1 (ja) | 2004-02-12 |
Family
ID=31492218
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/008688 WO2004013675A1 (ja) | 2002-08-05 | 2003-07-09 | 光スイッチ及び光スイッチユニット |
Country Status (7)
Country | Link |
---|---|
US (1) | US20060115209A1 (ja) |
EP (1) | EP1542057A1 (ja) |
JP (1) | JP3972935B2 (ja) |
KR (1) | KR100722055B1 (ja) |
CN (1) | CN1685271A (ja) |
CA (1) | CA2494703A1 (ja) |
WO (1) | WO2004013675A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007132654A1 (ja) * | 2006-05-12 | 2007-11-22 | Omron Corporation | 冗長用光スイッチ |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104536094A (zh) * | 2015-01-13 | 2015-04-22 | 梁联长 | 一种光开关 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5587102A (en) * | 1978-12-25 | 1980-07-01 | Fujitsu Ltd | Photo switch |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6542656B1 (en) * | 2000-04-05 | 2003-04-01 | Jds Uniphase Corporation | Add-drop optical switches including parallel fixed and movable reflectors and methods of fabricating same |
JP4460042B2 (ja) * | 2000-07-07 | 2010-05-12 | 古河電気工業株式会社 | 光スイッチモジュール |
US20020196999A1 (en) * | 2001-06-22 | 2002-12-26 | Bainbridge Networks, Inc. | Gimbaled optical switch |
TW563821U (en) * | 2001-09-12 | 2003-11-21 | Hon Hai Prec Ind Co Ltd | Optical switch |
TW505244U (en) * | 2001-10-31 | 2002-10-01 | Hon Hai Prec Ind Co Ltd | Prism type optical switch |
-
2003
- 2003-07-09 US US10/523,084 patent/US20060115209A1/en not_active Abandoned
- 2003-07-09 EP EP03741286A patent/EP1542057A1/en not_active Withdrawn
- 2003-07-09 CA CA002494703A patent/CA2494703A1/en not_active Abandoned
- 2003-07-09 KR KR1020057001722A patent/KR100722055B1/ko not_active IP Right Cessation
- 2003-07-09 JP JP2004525782A patent/JP3972935B2/ja not_active Expired - Fee Related
- 2003-07-09 CN CNA038227177A patent/CN1685271A/zh active Pending
- 2003-07-09 WO PCT/JP2003/008688 patent/WO2004013675A1/ja active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5587102A (en) * | 1978-12-25 | 1980-07-01 | Fujitsu Ltd | Photo switch |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007132654A1 (ja) * | 2006-05-12 | 2007-11-22 | Omron Corporation | 冗長用光スイッチ |
Also Published As
Publication number | Publication date |
---|---|
CN1685271A (zh) | 2005-10-19 |
JPWO2004013675A1 (ja) | 2006-09-21 |
EP1542057A1 (en) | 2005-06-15 |
JP3972935B2 (ja) | 2007-09-05 |
US20060115209A1 (en) | 2006-06-01 |
KR100722055B1 (ko) | 2007-05-25 |
KR20050026073A (ko) | 2005-03-14 |
CA2494703A1 (en) | 2004-02-12 |
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