JP4937180B2 - Light switch - Google Patents

Description

  The present invention relates to an optical switch that is used in an optical communication system, for example, and guides an optical signal from an arbitrary input port to an arbitrary output port by switching an optical signal path.

  For example, in the conventional optical switch as shown in Patent Document 1, the waveguide film is provided with a plurality of optical waveguides that intersect each other. A switching groove comprising a pair of groove wall surfaces is provided at the intersection of the optical waveguides. Further, tweezers-shaped pin pairs are inserted on both sides of the switching groove of the waveguide film. The tip part of the pin pair (the end part on the anti-coupling side) is magnetically coated, and when a magnetic force is applied to the tip part of the pin pair, the polymer waveguide film is bent and deformed, and the groove wall surface of the switching groove The contact / separation state of each other changes. Then, the traveling direction of the optical signal is switched by the switching groove transmitting and reflecting the optical signal.

Japanese Patent Laid-Open No. 2006-194556

  Here, in the manufacturing process of the conventional optical switch as described above, before inserting the pin pair into the waveguide film, it is necessary to form an insertion hole for inserting the pin pair into the waveguide film. There is. However, the diameter of the insertion hole is about 100 μm. For this reason, a comparatively high-precision processing operation is required, manufacturing facilities are limited, and manufacturing processes are increasing. Due to such factors, the manufacturing cost of the optical switch has been increased.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to obtain an optical switch that can omit the processing of the insertion hole and can reduce the manufacturing cost.

  An optical switch according to the present invention includes a first optical waveguide that forms an optical signal path, a second optical waveguide that is branched from the first optical waveguide, and that forms an optical signal path that is different from the first optical waveguide from the branched portion. The first and second groove wall surfaces that face each other and can be contacted / separated are provided with a switching groove that is disposed at a branching location and that switches an optical signal path by reflecting / transmitting an optical signal, and can be flexibly deformed. Waveguide film, non-deformation holding means provided on the first groove wall surface side with respect to the switching groove of the waveguide film, and holding the non-deformed state of the waveguide film on the first groove wall surface side with respect to the switching groove, Provided on the second groove wall surface side with respect to the switching groove, one end is joined to one side of the waveguide film, the other end is arranged to protrude from one side of the waveguide film, and the joint point with the waveguide film is a fulcrum Rotate to The rotation film is connected to the rotation pin, and by rotating the rotation pin, pressure is applied toward the switching groove on the second groove wall surface side with respect to the switching groove of the waveguide film to By bending and deforming, the first and second groove wall surfaces are joined to bring the switching groove into a light-transmitting state, and in the direction opposite to the switching groove on the second groove wall surface side with respect to the switching groove of the waveguide film. A contact / separation drive mechanism is provided that applies pressure to cause the waveguide film to bend and deform to the opposite side of the transmissive state, thereby opening the first and second groove wall surfaces so that the switching groove is in a reflective state of the optical signal. .

  According to the optical switch of the present invention, one end portion of the rotation pin is joined to one surface of the waveguide film, and the other end portion of the rotation pin is disposed so as to protrude from one surface of the waveguide film. When the moving pin is rotated by the contact / separation driving mechanism, the wall surfaces of the first and second grooves are brought into contact with and separated from each other through the deformation of the waveguide film, and the switching groove has a transmission state of the optical signal and a reflection state of the optical signal. Therefore, since the insertion hole as in the conventional optical switch is not necessary, the processing operation of the insertion hole can be omitted, and the manufacturing cost can be reduced.

The best mode for carrying out the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
1 is a perspective view showing an optical switch according to Embodiment 1 of the present invention. 2 is a cross-sectional view taken along line II-II in FIG. FIG. 1 shows a single switching unit in an N × N optical switch. 1 and 2, the polymer waveguide film 1 is formed by forming a fluorinated polyimide resin into a film by spin coating. Further, the polymer waveguide film 1 can be bent and deformed. Furthermore, the thickness dimension of the polymer waveguide film 1 is, for example, 50 μm.

  Furthermore, a core material (waveguide core) having a slightly higher refractive index than that of the fluorinated polyimide resin is embedded in the polymer waveguide film 1. This core material constitutes the first and second optical waveguides 1a and 1b. The first optical waveguide 1a and the second optical waveguide 1b form different optical signal paths. Further, the intermediate portions of the first optical waveguide 1a and the second optical waveguide 1b are connected orthogonally to each other. That is, the second optical waveguide 1b is branched from the first optical waveguide 1a. In the polymer waveguide film 1, a switching groove (cut groove) 1c is provided by cleaving at the intersection (connection location) between the first optical waveguide 1a and the second optical waveguide 1b.

  The switching groove 1c has first and second groove wall surfaces 1d and 1e facing each other. The first groove wall surface 1d and the second groove wall surface 1e can be contacted / separated (opened / closed) when the polymer waveguide film 1 is bent and deformed. Here, the switching groove 1c is disposed so as to totally reflect the optical signal passing through the first optical waveguide 1a and to guide it to the second optical waveguide 1b, and the first and second groove wall surfaces 1d and 1e are provided with the first groove. And the angle with respect to 2nd optical waveguide 1a, 1b is an angle which satisfy | fills the total reflection conditions between air layers.

  Further, when the first groove wall surface 1d and the second groove wall surface 1e are joined, the switching groove 1c transmits an optical signal passing through the first optical waveguide 1a and travels straight (as shown in FIG. 1, point A → Point B → Point C). Further, the switching groove 1c totally reflects the optical signal passing through the first optical waveguide 1a and guides it to the second optical waveguide 1b when the first groove wall surface 1d and the second groove wall surface 1e are separated from each other ( Point A → point B → point D in FIG.

  A lower end portion (one end portion) of the rotation pin 2 is bonded and fixed to one side (upper surface in FIG. 2) of the polymer waveguide film 1 by an adhesive 3. The rotation pin 2 is, for example, about 150 μm from the intersection of the first optical waveguide 1a and the second optical waveguide 1b in the polymer waveguide film 1 to the second groove wall surface 1e side (one in the normal direction of the switching groove 1c). It is arranged at an interval.

  Further, a stress release hole for relaxing the internal stress of the polymer waveguide film 1 at the time of bending deformation is provided at a position on the anti-switching groove 1c side (left side in FIG. 2) of the rotation pin 2 in the polymer waveguide film 1. 1f is provided. The adhesive 3 is a thermosetting adhesive or a photocurable adhesive. In the manufacturing process, when the lower end portion of the rotation pin 2 is joined to the polymer waveguide film 1, the adhesive 3 is applied to the polymer waveguide film 1 in a circular shape with a diameter of about 200 μm, for example. . And the lower end part of the rotation pin 2 is arrange | positioned in the apply | coated location.

  The upper end portion (the other end portion) of the rotation pin 2 is disposed so as to protrude from the polymer waveguide film 1. Moreover, the diameter dimension of the rotation pin 2 is, for example, 125 μm. Furthermore, the rotation pin 2 is formed of, for example, glass fiber or stainless steel. Moreover, the rotation pin 2 is rotatable (can be tilted) with a joint point with the polymer waveguide film 1 as a fulcrum.

  Further, the rotation pin 2 is rotated so as to be inclined toward the opening side of the switching groove 1c, so that the switching groove 1c is positioned at the second groove wall surface 1e side with respect to the switching groove 1c in the polymer waveguide film 1. Pressure is applied. Further, the rotation pin 2 is rotated so as to be inclined toward the stress release hole 1f (opposite to the opening of the switching groove 1c), whereby the second groove wall surface 1e side with respect to the switching groove 1c in the polymer waveguide film 1 is obtained. The pressure toward the stress release hole 1f is applied to the point.

  On the first groove wall surface 1d side (the right side in FIG. 2) with respect to the switching groove 1c of the polymer waveguide film 1, a hard member 4 is provided as a non-deformation holding means. The hard member 4 is attached to both surfaces (the upper surface and the lower surface in FIG. 2) of the polymer waveguide film 1. Further, the hard member 4 maintains the non-deformed state of the polymer waveguide film 1 on the first groove wall surface 1d side with respect to the switching groove 1c. For the hard member 4, a material harder than the polymer waveguide film 1 is used, and for example, a metal plate, a glass plate, or the like is used.

  A ring-shaped connection member 5 is inserted into the upper end portion of the rotation pin 2. The inner diameter dimension of the connecting member 5 is, for example, 10 μm or more larger than the outer diameter dimension of the rotation pin 2. An electromagnetic actuator 7 that generates a driving force is coupled to the connection member 5 via a rod-shaped coupling member 6. The rotation pin 2 is rotated by the driving force of the electromagnetic actuator 7. The electromagnetic actuator 7 is equivalent to a relay contact driving mechanism, and has a plunger, a spring, and a coil (all not shown).

  The plunger of the electromagnetic actuator 7 is coupled to the connecting member 6 and operates integrally with the connecting member 6. The spring of the electromagnetic actuator 7 biases the plunger toward one side in the width direction of the switching groove 1c. The coil of the electromagnetic actuator 7 is excited to displace the plunger to the other side in the width direction of the switching groove 1c against the spring force of the spring. The connecting member 5, the connecting member 6 and the electromagnetic actuator 7 constitute a contact / separation drive mechanism.

  Here, when the first groove wall surface 1d and the second groove wall surface 1e are in the separated state, the rotation pin 2 is rotated so as to be inclined toward the opening side of the switching groove 1c (FIGS. 1 and 2). The arrow E), the pressure toward the switching groove 1c is applied to the location on the second groove wall surface 1e side with respect to the switching groove 1c of the polymer waveguide film 1. With this pressure, the polymer waveguide film 1 is bent and deformed so as to press the first groove wall surface 1d against the second groove wall surface 1e. In this state, the non-deformed state on the first groove wall surface 1d side of the polymer waveguide film 1 is held by the hard member 4, so that the first groove wall surface 1d and the second groove wall surface 1e are joined to each other, The switching groove 1c is in the optical signal transmission state.

  On the other hand, when the first groove wall surface 1d and the second groove wall surface 1e are joined, the rotation pin 2 is rotated so as to be inclined toward the stress release hole 1f (to the arrow F in the figure). Then, a pressure toward the stress release hole 1f is applied to a location on the second groove wall surface 1e side with respect to the switching groove 1c of the polymer waveguide film 1. With this pressure, the polymer waveguide film 1 is bent and deformed so as to separate the first groove wall surface 1d from the second groove wall surface 1e. As a result, the first groove wall surface 1d and the second groove wall surface 1e are separated from each other, and the switching groove 1c is in a state of reflecting an optical signal.

  Next, the operation will be described. First, as an initial state, the rotation pin 2 is disposed so as to be inclined toward the opening side of the switching groove 1c (toward an arrow E in the figure). In this state, the polymer waveguide film 1 is bent so as to press the first groove wall surface 1d against the second groove wall surface 1e. In addition, the hard member 4 holds the non-deformed state of the polymer waveguide film 1 on the first groove wall surface 1d side with respect to the switching groove 1c. Thereby, the 1st groove wall surface 1d and the 2nd groove wall surface 1e are joined mutually. In this state, the optical signal traveling toward the arrow X passes through the switching groove 1c and goes straight as it is, and travels in the direction of the arrow Y.

  Further, from this state, when the electromagnetic actuator 7 is driven and the rotation pin 2 is rotated toward the stress release hole 1f (toward the arrow F in the figure), the polymer waveguide film 1 is the first. The groove wall surface 1d is bent and deformed so as to be separated from the second groove wall surface 1e. As the polymer waveguide film 1 is bent and deformed, the first groove wall surface 1d and the second groove wall surface 1e are separated from each other. At this time, the optical signal from the arrow X is totally reflected between the switching groove 1c and the air layer and travels in the direction of the arrow Z. That is, the optical signal path from the switching groove 1c is switched between the first optical waveguide 1a and the second optical waveguide 1b by the contact / separation state between the first groove wall surface 1d and the second groove wall surface 1e.

  In the optical switch as described above, the lower end portion (one end portion) of the rotation pin 2 is joined to one surface of the polymer waveguide film 1, and the upper end portion (other end portion) of the rotation pin 2 is bonded to the polymer waveguide film 1. It arrange | positions so that it may protrude from one side. Then, when the rotation pin 2 is rotated by the electromagnetic actuator 7, the first groove wall surface 1d and the second groove wall surface 1e are brought into contact with and separated from each other through the bending deformation of the polymer waveguide film 1, and the switching groove 1c is formed. The state is changed from one of the transmission state of the optical signal and the reflection state of the optical signal to the other. According to such a configuration, an insertion hole like a conventional optical switch becomes unnecessary, so that the processing operation of the insertion hole can be omitted, and the manufacturing cost can be reduced.

  In addition, when a N × N optical switch is manufactured, when a thermosetting adhesive is used as the adhesive 3, the entire heat treatment of the polymer waveguide film 1 or a photocurable adhesive is used. By applying light to the entire polymer waveguide film 1, the adhesive 3 can be cured all at once. Thereby, the plurality of rotating pins 2 respectively corresponding to the plurality of switching grooves 1c in the N × N optical switch can be mounted in a lump, and the manufacturing cost (assembly cost) can be further reduced.

  Furthermore, since the electromagnetic actuator 7 is used for the rotation of the rotation pin 2, the manufacturing cost can be further reduced and the operation reliability can be improved.

  Here, in the conventional optical switch as shown in Patent Document 1, the range of the insertion hole in the waveguide film may be wider than that in manufacturing due to the switching operation of the optical signal by long-term use, that is, the rotation of the pin pair. . And when the range of the insertion hole in a waveguide film expands compared with the time of manufacture in this way, there exists a problem that the switching operation of an optical signal will become unstable and a malfunction will arise. On the other hand, in the optical switch according to the first embodiment, since the insertion hole is not necessary, the stability of the switching operation of the optical signal can be improved, and the occurrence rate of defects can be reduced.

Embodiment 2. FIG.
In the first embodiment, the lower end portion of the rotation pin 2 is bonded to the polymer waveguide film 1 by the adhesive 3. On the other hand, in Embodiment 2, the lower end portion of the rotation pin 2 is joined to the polymer waveguide film 1 with solder.

  FIG. 3 is a perspective view showing an optical switch according to Embodiment 2 of the present invention. In FIG. 3, the metal pad 13 as metal foil is affixed on the single side | surface of the polymer waveguide film 1 of Embodiment 2 by vapor deposition. The metal pad 13 is disposed at a location spaced about 150 μm, for example, on the second groove wall surface 1 e side from the intersection of the first optical waveguide 1 a and the second optical waveguide 1 b in the polymer waveguide film 1. Further, the shape of the metal pad 13 is a square shape, and the length dimension of one side is, for example, 200 μm.

  Moreover, the rotation pin 2 of Embodiment 2 is formed, for example with the glass fiber coated with metal, or stainless steel. Moreover, the lower end part of the rotation pin 2 is connected to the metal pad 13 by solder (not shown). That is, the lower end portion of the rotation pin 2 is joined to one side of the polymer waveguide film 1 via the metal pad 13.

  Here, paste-like solder is printed in advance on the surface of the metal pad 13. And the surface of the metal pad 13 and the lower end part of the rotation pin 2 are mutually connected by a reflow process. Further, the metal pad 13 can be bent and deformed together with the polymer waveguide film 1 as the rotation pin 2 rotates. Other configurations and operations are the same as those in the first embodiment.

  In the optical switch as described above, the lower end portion of the rotation pin 2 is bonded to one side of the polymer waveguide film 1 via the metal pad 13. According to this configuration, when the N × N optical switch is manufactured, the plurality of rotating pins 2 respectively corresponding to the plurality of switching grooves 1c in the N × N optical switch can be collectively mounted by the reflow process. The manufacturing cost (assembly cost) can be further reduced.

Embodiment 3 FIG.
In the first embodiment, the area of the cross section in the direction orthogonal to the axial direction of the rotation pin 2 (the cross section in the left-right direction in FIG. 2, that is, the horizontal cross section) is uniform throughout the entire axial direction of the rotation pin 2. It was. On the other hand, in Embodiment 3, the area of the joint surface with the polymer waveguide film 1 in the rotation pin 22 is the cross section of the insertion location of the connection member 5 (connection location with the contact / separation drive mechanism). It is wider than the area of the horizontal section of the pivot pin 2.

  FIG. 4 is a perspective view showing an optical switch according to Embodiment 3 of the present invention. FIG. 5 is an enlarged side view showing the rotation pin 22 of FIG. 6 is an enlarged plan view showing the rotation pin 22 of FIG. In addition, in FIG. 6, the inner periphery of the connection member 5 is shown with a dashed-dotted line. 4-6, in Embodiment 3, it replaces with the rotation pin 2 of Embodiment 1, and the rotation pin 22 is used. The rotation pin 22 is made of, for example, stainless steel. Further, the rotation pin 22 is disposed at a location spaced, for example, by about 250 μm from the intersection of the first optical waveguide 1a and the second optical waveguide 1b in the polymer waveguide film 1 to the second groove wall surface 1e side. Yes.

  Furthermore, the rotation pin 22 has a rod-shaped rod portion 22a and a cubic block portion 22b. The diameter dimension of the rod portion 22a is, for example, 125 μm, similar to the diameter dimension of the rotating pin 2 of the first embodiment. Further, the connecting member 5 of the first embodiment is inserted into the rod portion 22a. Further, the rod portion 22 a is connected to the electromagnetic actuator 7 via the connecting member 5 and the connecting member 6.

  The block portion 22 b forms the lower end portion (one end portion) of the rotation pin 22. The shape of the horizontal cross section of the block portion 22b is a square shape. The length dimension of one side in this square is, for example, 200 μm. The end surface of the block portion 22 b opposite to the rod portion 22 a (that is, the lower end surface in FIG. 5) is bonded to one surface of the polymer waveguide film 1 by the adhesive 3. Other configurations and operations are the same as those in the first embodiment.

  In the optical switch as described above, the area of the joint surface of the rotation pin 22 with the polymer waveguide film 1 is smaller than the area of the joint surface of the rotation pin 2 with the polymer waveguide film 1 according to the first embodiment. It is getting wider. With this configuration, the bonding strength with the polymer waveguide film 1 can be improved as compared with the rotating pin 2 of the first embodiment.

  Here, in the optical switch of the first embodiment, in order to improve the bonding strength with the polymer waveguide film 1, the diameter dimension of the rotating pin 2 of the first embodiment is increased. Unless the shape and inner diameter are changed, the outer peripheral surface of the rotation pin 2 and the inner peripheral surface of the connection member 5 are in close contact with each other. In this state, when the electromagnetic actuator 7 is driven to rotate the rotation pin 2, the rotation range of the rotation pin 2 is restricted by the connection member 5, and the optical signal switching operation by the rotation pin 2 is performed. Be inhibited. On the other hand, in the optical switch of Embodiment 3, the area of the horizontal section of the block portion 22b of the rotation pin 22 is larger than the area of the horizontal section of the rod portion 22a. -Interference of rotation of the rotation pin 22 by the connecting member 5 can be avoided without changing the inner diameter dimension.

  Note that the shape and dimensions of the pivot pin 22 in the third embodiment are merely examples. In addition to this example, the shape of the rotation pin 22 may be appropriately changed according to the connection method between the rotation pin 22 and the electromagnetic actuator 7. In this case, the area of the joint surface of the rotation pin 22 with the polymer waveguide film 1 only needs to be larger than the area of the horizontal section of the connection portion of the rotation pin 22 with the electromagnetic actuator 7.

Embodiment 4 FIG.
In the first embodiment, the lower end portion of the rotation pin 2 is joined to the surface of the polymer waveguide film 1 where the opening of the switching groove 1c is provided. On the other hand, in Embodiment 4, the lower end portion of the rotating pin 2 is joined to the back surface of the polymer waveguide film 1 with respect to the surface provided with the opening of the switching groove 1c.

  FIG. 7 is a perspective view showing an optical switch according to Embodiment 4 of the present invention. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 7 and 8, in the fourth embodiment, the rotation direction of the rotation pin 2 for opening and closing the switching groove 1c is opposite to the rotation direction of the rotation pin 2 in the first embodiment. That is, when the rotation pin 2 is rotated toward the arrow E in the figure, the first groove wall surface 1d and the second groove wall surface 1e of the switching groove 1c are separated from each other. On the other hand, when the rotation pin 2 is rotated toward the arrow F in the figure, the first groove wall surface 1d and the second groove wall surface 1e of the switching groove 1c are joined to each other. Other configurations and operations are the same as those in the first embodiment.

  Here, in a general pin drive type optical switch, the closer the rotating pin (rotating arm) is to the switching groove, the more efficiently the pressure is transmitted to the switching groove. However, in the conventional optical switch, since the insertion hole is provided in the waveguide film, the design value is restricted by the processing / mounting accuracy so that the insertion hole does not overlap the switching groove. In contrast, in the optical switch as described above, the lower end portion of the rotation pin 2 is joined to the back surface of the polymer waveguide film 1 with respect to the surface provided with the opening of the switching groove 1c. With this configuration, even when the mounting position of the rotating pin 2 and the position of the switching groove 1c in the polymer waveguide film 1 partially overlap, the optical signal can be switched. Can be relaxed.

  Moreover, the design which makes the rotation pin 2 closer to the switching groove 1c becomes possible, and when designed in this way, the transmission efficiency of the pressure to the switching groove 1c can be improved.

  Furthermore, foreign matter such as dust can be prevented from entering the switching groove 1c during the mounting process of the rotating pin 2, and the stability at the time of manufacturing the optical switch can be improved.

  Note that the contents of Embodiments 1 to 4 may be combined with each other as long as the respective characteristics are not hindered. For example, in the third and fourth embodiments, one end of the rotating pins 2 and 22 may be bonded to the polymer waveguide film 1 via the metal pad 13 as in the second embodiment. Further, in the third embodiment, as in the fourth embodiment, one end of the rotation pin 22 may be bonded to the back surface of the polymer waveguide film 1 where the switching groove 1c is formed.

  Further, in the first to third embodiments, the switching groove 1c is in the reflection state of the optical signal by rotating the rotation pins 2 and 22 so as to be inclined to the opposite side of the opening of the switching groove 1c. In the fourth embodiment, the switching groove 1c is in a reflection state of the optical signal by rotating the rotation pin 2 so as to be inclined toward the switching groove 1c. However, the present invention is not limited to these examples, and the switching groove 1c is made to be optical by rotating the rotation pin 22 so as to stand upright with respect to the polymer waveguide 1 to release the bending deformation of the polymer waveguide film 1. The signal may be reflected. In this case, it can be realized by adjusting the material of the polymer waveguide film 1 and the angles of the first and second groove wall surfaces 1d and 1e of the switching groove 1c.

1 is a perspective view showing an optical switch according to Embodiment 1 of the present invention. It is sectional drawing which follows the II-II line | wire of FIG. It is a perspective view which shows the optical switch by Embodiment 2 of this invention. It is a perspective view which shows the optical switch by Embodiment 3 of this invention. It is a side view which expands and shows the rotation pin of FIG. It is a top view which expands and shows the rotation pin of FIG. It is a perspective view which shows the optical switch by Embodiment 4 of this invention. It is sectional drawing which follows the VIII-VIII line of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Polymer waveguide film, 1a 1st optical waveguide, 1b 2nd optical waveguide, 1d 1st groove wall surface, 1e 2nd groove wall surface, 1c switching groove, 2,22 Rotation pin, 3 Adhesive agent, 4 Hard member Deformation holding means), 7 electromagnetic actuator, 13 metal pad (metal foil).

Claims (6)

A first optical waveguide that forms an optical signal path, and a second optical waveguide that is branched from the first optical waveguide and forms an optical signal path different from the first optical waveguide from the branch point, are opposed to and separated from each other. A waveguide film having a first and a second groove wall surface that is possible, disposed at the branch point, and provided with a switching groove for switching an optical signal path by reflecting and transmitting an optical signal,
A non-deformable holding means provided on the first groove wall surface side with respect to the switching groove of the waveguide film, and holding the non-deformed state of the waveguide film on the first groove wall surface side with respect to the switching groove;
The waveguide film is provided on the second groove wall surface side with respect to the switching groove, and is arranged so that one end is joined to one side of the waveguide film and the other end projects from the one side of the waveguide film. A rotation pin that can rotate about a joint point with the waveguide film, and a rotation pin that is connected to the rotation pin and rotates the rotation pin, whereby the switching film has the switching groove with respect to the switching groove. By applying pressure toward the switching groove on the second groove wall surface side to bend and deform the waveguide film, the first and second groove wall surfaces are joined to bring the switching groove into a light signal transmission state. By applying pressure in the direction opposite to the switching groove on the second groove wall surface side with respect to the switching groove of the waveguide film, the waveguide film is bent and deformed to the opposite side of the transmission state. An optical switch comprising: a contact / separation drive mechanism that opens the wall surfaces of the first and second grooves to bring the switching groove into a reflection state of an optical signal. The optical switch according to claim 1, wherein the rotation pin is disposed on a back surface of the waveguide film with respect to a surface provided with the opening of the switching groove. The optical switch according to claim 1 or 2, wherein the one end portion of the rotating pin is bonded to the one surface of the waveguide film by an adhesive. The one end portion of the rotating pin is connected to a metal foil attached to the one surface of the waveguide film by solder, and is joined to one surface of the waveguide film via the metal foil. The optical switch according to claim 1, wherein the optical switch is provided. The area of the joint surface of the rotating pin with the waveguide film is the area of the cross section in the direction orthogonal to the axial direction of the rotating pin among the cross sections of the connecting portion of the rotating pin with the contact / separation driving mechanism. The optical switch according to any one of claims 1 to 4, wherein the optical switch is wider. The optical switch according to any one of claims 1 to 5, wherein the contact / separation drive mechanism is an electromagnetic actuator having a coil, a plunger, and a spring.

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