CN201278031Y - 1*M*N optical switch - Google Patents
1*M*N optical switch Download PDFInfo
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- CN201278031Y CN201278031Y CNU2008201416033U CN200820141603U CN201278031Y CN 201278031 Y CN201278031 Y CN 201278031Y CN U2008201416033 U CNU2008201416033 U CN U2008201416033U CN 200820141603 U CN200820141603 U CN 200820141603U CN 201278031 Y CN201278031 Y CN 201278031Y
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Abstract
The utility model relates to a 1*M*N type optical switch which comprises optical fiber collimators with the number of 1plus M*N, a roof ridge prism, a fixed wedge angle prism and fixed prisms with the number of M minus 2; one of the optical fiber collimators is a public port optical fiber collimator, others are arranged input and output port optical fiber collimators with the number of M*N, wherein M and N are natural numbers more than or equal to 1, each column of optical fiber collimators are connected in series along an optical channel formed by optical fibers, the public port optical fiber collimator is also connected with the optical fibers for forming the optical channel, and movable wedge angle prisms with the number of M minus 1and movable rhombic prisms with the number of M minus 1 positioned behind the movable wedge angle prisms are arranged in sequence along the optical channel direction of the public port optical fiber collimator and are controlled by a relay; the roof ridge prism is positioned behind the movable rhombic prisms; the fixed wedge angle prism is positioned on an optical channel at the emission end of the roof ridge prism; and the fixed prisms are respectively arranged on each optical channel emitted by the fixed wedge angle prism, and the output optical channel of each fixed prism corresponds to the optical channel of a column of optical fiber collimator. The utility model can be widely applied in optical communication systems, optical fiber network systems, optical fiber measurement systems or instrument and optical fiber sensing systems.
Description
Technical field
The utility model relates to a kind of mechanical optical switch, particularly relate to and a kind ofly in the optical communication field, can realize light beam deviation, translation functions, can be widely used in the 1 * M * N type photoswitch in optical communication system, optical fiber network system, optical measuring system or instrument and the optical fiber sensing system.
Background technology
In the middle of all-optical network various device device, (O * C) and Optical Add/Drop Multiplexer (OADM) can be described as the core devices technology of full light networking to optical cross-connection equipment, and photoswitch is the critical component of the inside.Along with the continuous dilatation of system, also more and more higher to the requirement of photoswitch.Traditional 1 * N mechanical optical switch generally adopts cascade, and the mode of moving fiber or mobile prism realizes the switching of light path.
1 * N photoswitch of traditional cascade scheme, its minimum cascade unit that adopts is 1 * 2 photoswitch, with 1 * 8 photoswitch is example, need to use 71 * 2 photoswitch cascades, the employed photoswitch quantity of cascade scheme is more, causes 1 * N photoswitch volume big, and the insertion loss is big, poor repeatability, and poor stability.
Traditional moving fiber formula 1 * N photoswitch, satisfy acceptable numerical value in order to make the insertion loss, very high precision is arranged when needing to guarantee moving fiber, high-precision requirement, must cause the increase of cost on the structural design, reduced throughput rate, the ability to bear for vibration, shock environment is not enough simultaneously.
Traditional mobile lens type 1 * N photoswitch, the number of prisms of using is many, increase along with the light path port number, the quantity of prism and relay also is multiplied, so just increased manufacture difficulty, reduced the stability of product, the increase of lateral light number of channels makes switch that bigger volume be arranged simultaneously.
Summary of the invention
Technical problem to be solved in the utility model is, provide a kind of and in the optical communication field, can realize light beam deviation, translation functions, can be widely used in the 1 * M * N type photoswitch in optical communication system, optical fiber network system, optical measuring system or instrument and the optical fiber sensing system.
The technical scheme that the utility model adopted is: a kind of 1 * M * N type photoswitch includes:
1+M * N optical fiber collimator, one is the public port optical fiber collimator, all the other are M * N output, the input port fiber collimating apparatus for arranging, wherein, the port number that the M representative is horizontal, N represents progression longitudinally, and M, N all get the natural number more than or equal to 1, the output of described each file, input port fiber collimating apparatus all are to be connected in series along the light path that is made of optical fiber, and described public port optical fiber collimator also is connected with the optical fiber that constitutes light path;
M-1 movable angle of wedge prism along being arranged in order on the optical path direction of described public port optical fiber collimator, and is controlled by relay;
N-1 movable rhombic prism is positioned at the back of movable angle of wedge prism, along being arranged in order on the optical path direction of described public port optical fiber collimator, and controls by relay;
A roof prism is positioned at the back of movable rhombic prism, and its incident light is the collimated light beam of public port optical fiber collimator incident or through movable angle of wedge prism deviation or through the collimated light beam after the movable rhombic prism translation;
A fixed wedge angle prism is positioned on the exit end light path of roof prism;
M-2 fixed prism is separately positioned on each light path of fixed wedge angle prism outgoing, the light path of the corresponding row optical fiber collimator of the output light path of each fixed prism;
The plane of refraction unification of described movable angle of wedge prism is towards the direction of movable rhombic prism, and has setting at interval between movable angle of wedge prism.
Described movable angle of wedge prism is the trapezoidal angle of wedge, and each movable angle of wedge prism connects a relay by a Metallic rod.
Described movable rhombic prism is the parallelogram prism, and each movable rhombic prism connects a relay by a Metallic rod.
Described relay drives M-1 movable angle of wedge prism and N-1 movable rhombic prism switches between first stop place and second stop place, described first stop place be the logical light face of M-1 movable angle of wedge prism and N-1 movable rhombic prism outside the light path of public port optical fiber collimator, second stop place is that the logical light face of M-1 movable angle of wedge prism and N-1 movable rhombic prism is in the light path of public port optical fiber collimator.
A described fixed wedge angle prism is a Dove prism; M-2 fixed prism is fixing rhombic prism, and described fixedly rhombic prism is the parallelogram prism.
Described movable angle of wedge prism is identical with the angle of wedge angle of described fixed wedge angle prism.
Described roof prism is a right-angle prism.
The incident beam and the outgoing beam of described roof prism are parallel to each other.
Described 1+M * N optical fiber collimator is separately positioned on each metal platform of metal substrate, wherein, on the 1st metal platform of metal substrate, be arranged side by side public port optical fiber collimator and M output, input port fiber collimating apparatus from left to right successively, and be in same surface level; On the 2nd～N metal platform of metal substrate, be arranged side by side M output, input port fiber collimating apparatus by the left-hand right side, output, input port fiber collimating apparatus set on each metal platform are in same surface level.
Metal platform on the described metal substrate is for to be made of the 1st metal platform to the N metal platform, and N gets the natural number more than or equal to 1; In the described metal platform, each metal platform of all the other outside the 1st metal platform is bow-shaped structural, and each metal platform forms ladder-type structure from low to high.
Described each movable angle of wedge prism and each movable rhombic prism, fixedly roof prism and fixed wedge angle prism and fixedly rhombic prism all be fixed on metal substrate above; The relay that drives each movable angle of wedge prism and movable rhombic prism is connected on the control circuit, and described control circuit and metal substrate are fixed together.
It is described that the light path of output, input port fiber collimating apparatus is reversible from the public port optical fiber collimator to M * N.
The utility model 1 * M * N type photoswitch has the following advantages:
1, used fewer optical prism, realized the function of 1 * M * N photoswitch, the optical prism negligible amounts has not only reduced the cost of element manufacturing, has reduced manufacture difficulty simultaneously.
2, used fewer relay to drive movable optical prism, especially for the photoswitch of more port number, the number of relay and movable rhombic prism has very big minimizing than the prior art photoswitch, reduced the crash rate of product like this, improved the stability of product, saved very big dimensional space, be more convenient for miniaturization of devices, simultaneously owing to used the optical prism of lesser amt, the transmission range of light path obtains shortening, make that its each passage all has the index of well crosstalking for multichannel photoswitch.
3, internal mechanical novel structure can realize that optical channel in horizontal and vertical expansion simultaneously, makes device have smaller volume.
1 * M of the present utility model * N type photoswitch can be widely used in optical communication system, optical fiber network system, optical measuring system or instrument and the optical fiber sensing system.
Description of drawings
Fig. 1 is the one-piece construction synoptic diagram of the utility model 1 * M * N photoswitch;
Fig. 2 a is the movable rhombic prism first stop place synoptic diagram of the utility model 1 * M * N photoswitch;
Fig. 2 b is the movable rhombic prism second stop place synoptic diagram of the utility model 1 * M * N photoswitch;
Fig. 3 is the synoptic diagram of the utility model 1 * M * N photoswitch metal substrate;
Fig. 4 is first preferred embodiment 1 * 4 photoswitch synoptic diagram of the utility model 1 * M * N photoswitch;
Fig. 5 is the utility model 1 * M * second preferred embodiment of N photoswitch, 1 * 8 photoswitch synoptic diagram;
Fig. 6 is the utility model 1 * M * second preferred embodiment of N photoswitch, 1 * 8 optical switch construction synoptic diagram.
Embodiment
Provide specific embodiment below in conjunction with accompanying drawing, further specify 1 * M of the present utility model * N type photoswitch and how to realize.
As shown in Figure 1,1 * M of the present utility model * N type photoswitch includes:
1+M * N optical fiber collimator, one is public port optical fiber collimator C00, all the other are M * N output, the input port fiber collimating apparatus C (C11 among the figure for arranging, C21 ... CM1, C12 ... CM2 ... CMN), wherein, the port number that the M representative is horizontal, N represents progression longitudinally, M, N all get the natural number more than or equal to 1, the output of described each file, input port fiber collimating apparatus C are connected in series along the light path that is made of optical fiber, and described public port optical fiber collimator C00 also is connected with the optical fiber that constitutes light path 10; Each collimating apparatus all keeps almost parallel and towards same direction.
M-1 movable angle of wedge prism A along being arranged in order on light path 10 directions of described public port optical fiber collimator C00, and controls by relay R;
Described movable angle of wedge prism A is the trapezoidal angle of wedge, and each movable angle of wedge prism A connects a relay R by a Metallic rod L.
N-1 movable rhombic prism B is positioned at the back of movable angle of wedge prism A, along being arranged in order on light path 10 directions of described public port optical fiber collimator C00, and controls by relay R;
Described movable rhombic prism B is movable rhombic prism, and described movable rhombic prism is the parallelogram prism, and each movable rhombic prism B connects a relay R by a Metallic rod L.
The plane of refraction unification of described movable angle of wedge prism A is towards the direction of movable rhombic prism B, and has setting at interval between movable angle of wedge prism A.
A roof prism D0 is positioned at the back of movable rhombic prism B, and its incident light is the collimated light beam of public port optical fiber collimator C00 incident or through movable angle of wedge prism A deviation or through the collimated light beam after the movable rhombic prism B translation; Described roof prism D0 is a right-angle prism.
The effect of described roof prism is the collimated light beam after making the collimated light beam of public port optical fiber collimator incident or passing through movable angle of wedge prism deviation or translation, near on the right angle face of relay one end total reflection takes place at it, pass through the total reflection of roof prism another one right angle face again, from the inclined-plane outgoing, the incident beam and the outgoing beam of described roof prism are parallel to each other at last.
A fixed wedge angle prism E0 is positioned on the exit end light path of roof prism D0, and described fixed wedge angle prism E0 is a Dove prism.The effect of described fixed wedge angle prism is to make from the fixing collimated light beam of roof prism inclined-plane outgoing, and after through the fixed wedge angle prism, beam direction is with parallel to each other from the collimated light beam direction of public port incident, and direction is opposite.
Described movable angle of wedge prism A is identical with the angle of wedge angle of described fixed wedge angle prism E0.
The angle of wedge angle of fixed wedge angle prism E0 is identical with the angle of wedge angle of movable angle of wedge prism A1, A2, A (M-1), and the angle of wedge all towards with the direction of relay one side.The position of fixed wedge angle prism E0 and size require to satisfy and can receive the collimated light beam 23,33,43,53 that penetrates from roof prism D0 fully ... through the collimated light beam 24,34,44,54 behind the fixed wedge angle prism E0 deviation ... parallel with the collimated light beam that constitutes light path 10 and direction is opposite.The position of fixed wedge angle prism E0 also should be satisfied, and can be coupled into optical fiber collimator C (M-1) 1 through the collimated light beam 54 behind the deviation.
M-2 fixed prism F is separately positioned on each light path of fixed wedge angle prism E0 outgoing, the light path of the corresponding row optical fiber collimator C of the output light path of each fixed prism F; M-2 fixed prism F is fixing rhombic prism, and described fixedly rhombic prism is the parallelogram prism.
Fixedly rhombic prism F1, F2, F3 ... be placed in the light path between optical fiber collimator and the prism E0 successively.Fixedly the position of rhombic prism F1 and dimensional requirement satisfy collimated light beam 24 and can be fully see through its logical light face and can not shelter from collimated light beam 34, and outgoing beam 25 can be coupled into optical fiber collimator C11 fully simultaneously.Fixedly the position of rhombic prism F2 and dimensional requirement satisfy collimated light beam 34 and can be fully see through it by face and can not shelter from collimated light beam 44, and outgoing beam 35 can be coupled into collimating apparatus C21 fully simultaneously, and the like.
Described light path from public port optical fiber collimator C00 to M * N output, input port fiber collimating apparatus C is reversible.
In Fig. 1, public port optical fiber collimator C00 outgoing is directly injected the collimated light beam of fixing roof prism D0 with track 10 expressions, folded light beam in fixing roof prism is with track 13 expressions, penetrate fixedly roof prism, the collimated light beam that is coupled into output optical fibre collimating apparatus CM1 is with track 14 expressions.
As shown in Figure 2, described relay R drives M-1 movable angle of wedge prism A and N-1 movable rhombic prism B switches between first stop place and second stop place, described first stop place be the logical light face of M-1 movable angle of wedge prism A and N-1 movable rhombic prism B outside the light path 10 of public port optical fiber collimator C00, second stop place is that the logical light face of M-1 movable angle of wedge prism A and N-1 movable rhombic prism B is in the light path 10 of public port optical fiber collimator C00; The model of described relay is: TQ2-L2-5.
C00 is the public port optical fiber collimator among Fig. 2, and D0 is fixing roof prism, and shining the light path that fixing roof prism D0 leads to the light face from public port optical fiber collimator C00 is 10; A is movable angle of wedge prism, is fixed on the plane of bond pad J; The column of bond pad inserts in the hole of connecting link L, and the two is fixed together; K is the motion iron core of relay R, and the motion iron core K of connecting link L and relay R is fixed together; P is the driving pin of relay R.
By on the driving pin P of relay R, loading different voltage pulse signals, can realize the switching of its motion iron core K at two diverse locations, drive activity angle of wedge prism A switches two stop places thus.As relay R drive activity angle of wedge prism A during to first stop place, movable angle of wedge prism A is positioned at outside the light path 10.Be the logical light face that light path 10 does not see through movable angle of wedge prism A, movable angle of wedge prism does not produce any influence to light path; When relay R drive activity angle of wedge prism A arrived the second place, movable angle of wedge prism A was positioned at light path 10, and promptly light path 10 sees through the logical light face of movable angle of wedge prism A, and movable angle of wedge prism produces the effect of deviation or translation to light path.
As shown in Figure 3, described 1+M * N optical fiber collimator is separately positioned on each metal platform of metal substrate J, wherein, on the 1st metal platform 1 of metal substrate J, public port optical fiber collimator C00 and M output, input port fiber collimating apparatus C (C11 among the figure have been arranged side by side from left to right successively ... and be in same surface level M+1 such as a CM1 optical fiber collimator); The 2nd～N the metal platform 2 of metal substrate J ... on the N, M output, input port fiber collimating apparatus C (C12 among the figure have been arranged side by side by the left-hand right side, C22 ... M such as a CM2 optical fiber collimator), set output, input port fiber collimating apparatus C is in same surface level on each metal platform.By that analogy, optical fiber collimator C1N, C2N ... M such as a CMN optical fiber collimator is positioned at N metal platform top of metal substrate, is in same surface level.
Metal platform on the described metal substrate J is for to be made of to N metal platform N the 1st metal platform 1, and N gets the natural number more than or equal to 1; In the described metal platform, all the other each metal platforms outside the 1st metal platform 1 are bow-shaped structural, and each metal platform 1 ... N forms ladder-type structure from low to high.
Described each movable angle of wedge prism A and each movable rhombic prism B, fixedly roof prism D0 and fixed wedge angle prism E0 and fixedly rhombic prism F all be fixed on metal substrate J above; The relay R that drives each movable angle of wedge prism A and movable rhombic prism B is connected on the control circuit, and described control circuit and metal substrate J are fixed together.
M-1 movable angle of wedge prism A1, A2 ... A (M-1) and N-1 movable rhombic prism B1, B2 ... B (N-1) is placed on the light path 10 successively, and certain clearance is arranged between it.Movable angle of wedge prism A1 is fixed together by Metallic rod L1 and relay R 11, and movable angle of wedge prism A2 is fixed together by Metallic rod L2 and relay R 21 ... movable angle of wedge prism A (M-1) is fixed together with relay R (M-1) 1 by Metallic rod L (M-1); Movable rhombic prism B1 is fixed together by Metallic rod I1 and relay R M1, and movable rhombic prism B2 is fixed together by Metallic rod I2 and relay R M2 ... movable rhombic prism B (N-1) is fixed together by Metallic rod I (N-1) and relay R M (N-1).Relay is emitted on side by side near public port optical fiber collimator one side, and the drift angle of movable angle of wedge prism is towards relay one side, and the reflecting surface of movable rhombic prism is put in the face of the metal substrate direction.
When movable angle of wedge prism A2 was in light path 10, its position and size can satisfy the deviation light beam that shelters from fully after collimated light beam passes through angle of wedge prism A1; When angle of wedge prism A3 was in light path 10, its position and size can satisfy and shelter from collimated light beam fully through angle of wedge prism A1, perhaps the deviation light beam behind the A2; By that analogy, rhombic prism B (N-1) is when being in light path 10, its position and size can satisfy and shelter from collimated light beam fully through angle of wedge prism A1, A2 ... A (M-1) or rhombic prism B1, B2 ... deviation among the B (N-2) after any one group or translation light beam.
In conjunction with Fig. 1 principle of work of the present utility model is described: when photoswitch was in first state, movable angle of wedge prism A1 inserted in the light path 10, movable angle of wedge prism A2, A3 ... A (M-1), B1 ... B (N-1) remains on outside the light path 10.Light beam 10 penetrates with emergent light 21 through behind the movable angle of wedge prism A1, and light beam 21 is partial to certain angle clockwise with respect to light beam 10.Total reflection takes place at the right angle of roof prism D0 face D01 in light beam 21, incides on the right angle face D02 with light beam 22, and total reflection takes place on D02, penetrates with light beam 23.Light beam 23 is mapped on the logical light face of the fixed wedge angle prism E0 identical with movable angle of wedge prism A1 angle of wedge angle and angle of wedge direction, penetrates with light beam 24, and light beam 24 is partial to certain angle counterclockwise with respect to light beam 23.A fixedly rhombic prism F1 is arranged on the light path of light beam 24, light beam 24 is after fixedly total reflections are passed through in two sides of rhombic prism F1, made light beam translation a distance back penetrate with light beam 25, the distance of institute's translation equals the fixedly length of rhombic prism F1 transmission plane, the distance dependent system between the selection of this length and optical fiber collimator C00 and the C11.Outgoing beam 25 is exported after being coupled into optical fiber collimator C11, has so just set up optical fiber collimator C00 and has been connected with light path between the C11, and this light path is reversible, and light beam can be exported from optical fiber collimator C00 from optical fiber collimator C11 input.First state of Here it is photoswitch.
When photoswitch was in second state, movable angle of wedge prism A2 inserted in the light path 10, movable angle of wedge prism A1, A3 ... A (M-1), B1 ... B (N-1) remains on outside the light path 10.Light beam 10 penetrates with emergent light 31 through behind the movable angle of wedge prism A2, and light beam 31 is partial to certain angle clockwise with respect to light beam 10.Total reflection takes place at the right angle of roof prism D0 face D01 in light beam 31, incides on the right angle face D02 with light beam 32, and total reflection takes place on D02, penetrates with light beam 33.Light beam 33 is mapped on the logical light face of the fixed wedge angle prism E0 identical with movable angle of wedge prism A2 angle of wedge angle and angle of wedge direction, penetrates with light beam 34, and light beam 34 is partial to certain angle counterclockwise with respect to light beam 33.Light beam 34 is after fixedly total reflections are passed through in two sides of rhombic prism F2, made light beam translation a distance back penetrate with light beam 35, the distance of institute's translation equals the fixedly length of rhombic prism F2 transmission plane, the distance dependent system between the selection of this length and optical fiber collimator C11 and the C21.Outgoing beam 35 is exported after being coupled into optical fiber collimator C21, has so just set up optical fiber collimator C00 and has been connected with light path between the C21, and this light path is reversible, and light beam can be exported from optical fiber collimator C00 from optical fiber collimator C21 input.Second state of Here it is photoswitch.
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When photoswitch was in M-1 state, movable angle of wedge prism A (M-1) inserted in the light path 10, movable angle of wedge prism A1, A2 ... A (M-2), B1 ... B (N-1) remains on outside the light path 10.Behind the light beam 10 movable angle of wedge prism A of process (M-1), penetrate with emergent light 51, light beam 51 is partial to certain angles clockwise with respect to light beam 10.Total reflection takes place at the right angle of roof prism D0 face D01 in light beam 51, incides on the right angle face D02 with light beam 52, and total reflection takes place on D02, penetrates with light beam 53.Light beam 53 is mapped on the logical light face of the fixed wedge angle prism E0 identical with movable angle of wedge prism A (M-1) angle of wedge angle and angle of wedge direction, penetrates with light beam 54, and light beam 54 is partial to certain angle counterclockwise with respect to light beam 53.Light beam 54 is coupled into the output of optical fiber collimator C (M-1) 1 back, has so just set up optical fiber collimator C00 and has been connected with light path between the C (M-1) 1, and this light path is reversible, and light beam can be imported from optical fiber collimator C (M-1) 1, export from optical fiber collimator C00.(M-1) individual state of Here it is photoswitch.
When photoswitch was in M state, all movable angle of wedge prisms all remained on outside the light path 10, and light beam 10 at the right angle of roof prism D0 face D01 total reflection takes place, and incide on the right angle face D02 with light beam 13, and total reflection takes place on D02, penetrated with light beam 14.Outgoing beam is exported after being coupled into optical fiber collimator CM1, has so just set up optical fiber collimator C00 and has been connected with light path between the CM1, and this light path is reversible, and light beam can be exported from optical fiber collimator C00 from optical fiber collimator CM1 input.M state of Here it is photoswitch.
When photoswitch was in M+1 state, movable angle of wedge prism A1 and movable rhombic prism B1 inserted in the light path 10, and other movable angle of wedge prisms all remain on outside the light path 10.After light beam 10 sees through movable angle of wedge prism A1, penetrate with emergent light 21, light beam 21 is partial to certain angle clockwise with respect to light beam 10.Light beam 21 is through behind the movable rhombic prism B1, penetrate with emergent light 61, emergent light 61 upwards has been offset a height with respect to incident light 21, and this height is consistent with respect to the height of first metal platform with length and second metal platform of movable rhombic prism B1 transmission plane.Light beam 61 is through the translation of roof prism D0 and oppositely, incide with emergent light 62 on the logical light face of the fixed wedge angle prism E0 identical with movable angle of wedge prism A1 angle of wedge angle and angle of wedge direction, penetrate with light beam 63, light beam 63 is partial to certain angle counterclockwise with respect to light beam 62.Light beam 63 is after fixedly total reflections are passed through in two sides of rhombic prism F1, made light beam translation a distance back penetrate with light beam 64, the distance of institute's translation equals the fixedly length of rhombic prism F1 transmission plane, in the horizontal direction distance dependent system between the selection of this length and optical fiber collimator C12 and the C00.Outgoing beam 64 is exported after being coupled into optical fiber collimator C12, has so just set up optical fiber collimator C00 and has been connected with light path between the C12, and this light path is reversible, and light beam can be exported from optical fiber collimator C00 from optical fiber collimator C12 input.M+1 state of Here it is photoswitch.
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When photoswitch was in M+ (M-1)=2M-1 optical path states, movable angle of wedge prism A (M-1) and movable rhombic prism B1 inserted in the light path 10, and other movable angle of wedge prisms all remain on outside the light path 10.After light beam 10 sees through movable angle of wedge prism A (M-1), penetrate with emergent light 51, light beam 51 is partial to certain angle clockwise with respect to light beam 10.Light beam 51 is through behind the movable rhombic prism B1, penetrate with emergent light 71, emergent light 71 upwards has been offset a height with respect to incident light 51, and this height is consistent with respect to the height of first metal platform with length and second metal platform of movable rhombic prism B1 transmission plane.Light beam 71 is through the translation of roof prism D0 and oppositely, incide with emergent light 72 on the logical light face of the fixed wedge angle prism E0 identical with movable angle of wedge prism A (M-1) angle of wedge angle and angle of wedge direction, penetrate with light beam 73, light beam 73 is partial to certain angle counterclockwise with respect to light beam 72.Light beam 73 is coupled into the output of optical fiber collimator C (M-1) 2 back, has so just set up optical fiber collimator C00 and has been connected with light path between the C (M-1) 2, and this light path is reversible, and light beam can be imported from optical fiber collimator C (M-1) 2, export from optical fiber collimator C00.2M-1 state of Here it is photoswitch.
When photoswitch was in M+M=2M optical path states, movable rhombic prism B1 inserted in the light path 10, and other movable angle of wedge prisms all remain on outside the light path 10.Behind the light beam 10 process prism B1, penetrate with emergent light 11, emergent light 11 upwards has been offset a height with respect to incident light 10, and this height is consistent with respect to the height of first metal platform with length and second metal platform of movable rhombic prism B1 transmission plane.Light beam 11 is through the translation of roof prism D0 and oppositely, with emergent light 15 outgoing.Light beam 15 is exported after being coupled into optical fiber collimator CM2, has so just set up optical fiber collimator C00 and has been connected with light path between the CM2, and this light path is reversible, and light beam can be exported from optical fiber collimator C00 from optical fiber collimator CM2 input.2M state of Here it is photoswitch.
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When photoswitch was in (N-1) * M+1 optical path states, movable angle of wedge prism A1 and movable rhombic prism B (N-1) inserted in the light path 10, and other movable angle of wedge prisms all remain on outside the light path 10.After light beam 10 sees through movable angle of wedge prism A1, penetrate with emergent light 21, light beam 21 is partial to certain angle clockwise with respect to light beam 10.Behind the light beam 21 movable rhombic prism B of process (N-1), penetrate with emergent light 91, emergent light 91 upwards has been offset a height with respect to incident light 21, and this height is consistent with respect to the height of first metal platform with length and N metal platform of movable rhombic prism B1 transmission plane.Light beam 91 incides with emergent light 92 on the logical light face of the prism E0 identical with movable angle of wedge prism A1 angle of wedge angle and angle of wedge direction through the translation of roof prism D0 and oppositely, penetrates with light beam 93, and light beam 93 is with respect to light beam 92 counterclockwise deflection certain angles.Light beam 93 is after fixedly total reflections are passed through in two sides of rhombic prism F1, made light beam translation a distance back penetrate with light beam 94, the distance of institute's translation equals the length of prism F1 transmission plane, in the horizontal direction distance dependent system between the selection of this length and optical fiber collimator C1N and the C00.Outgoing beam 94 is exported after being coupled into optical fiber collimator C1N, has so just set up collimating apparatus C00 and has been connected with light path between the C1N, and this light path is reversible, and light beam can be exported from optical fiber collimator C00 from optical fiber collimator C1N input.(N-1) * M+1 state of Here it is photoswitch.
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When photoswitch was in (N-1) * M+ (M-1)=N * M-1 optical path states, movable angle of wedge prism A (M-1) and movable rhombic prism B (N-1) inserted in the light path 10, and other movable angle of wedge prisms all remain on outside the light path 10.After light beam 10 sees through prism A (M-1), penetrate with emergent light 51, light beam 51 is partial to certain angle clockwise with respect to light beam 10.Behind the light beam 51 movable rhombic prism B of process (N-1), penetrate with emergent light 81, emergent light 81 upwards has been offset a height with respect to incident light 51, and this height is consistent with respect to the height of first metal platform with length and N metal platform of movable rhombic prism B1 transmission plane.Light beam 81 is through the translation of roof prism D0 and oppositely, incide with emergent light 82 on the logical light face of the fixed wedge angle prism E0 identical with movable angle of wedge prism A (M-1) angle of wedge angle and angle of wedge direction, penetrate with light beam 83, light beam 83 is partial to certain angle counterclockwise with respect to light beam 82.Light beam 83 is exported after being coupled into optical fiber collimator C (M-1) N, has so just set up optical fiber collimator C00 and has been connected with light path between C (M-1) N, and this light path is reversible, and light beam can be exported from optical fiber collimator C00 from optical fiber collimator C (M-1) N input.The N * M-1 state of Here it is photoswitch.
When photoswitch was in (N-1) * M+M=N * M optical path states, movable rhombic prism B (N-1) inserted in the light path 10, and other movable angle of wedge prisms all remain on outside the light path 10.Behind the light beam 10 movable rhombic prism B of process (N-1), penetrate with emergent light 12, emergent light 12 upwards has been offset a height with respect to incident light 10, and this height is consistent with respect to the height of first metal platform with length and N metal platform of movable rhombic prism B (N-1) transmission plane.Light beam 12 is through the translation of roof prism D0 and oppositely, with emergent light 16 outgoing.Light beam 16 is exported after being coupled into optical fiber collimator CMN, has so just set up optical fiber collimator C00 and has been connected with light path between the CMN, and this light path is reversible, and light beam can be exported from optical fiber collimator C00 from optical fiber collimator CMN input.The N * M state of Here it is photoswitch.
Fig. 4 is first embodiment of the utility model 1 * M * N photoswitch, 1 * 4 photoswitch.Public port collimating apparatus C0 and 4 output port collimating apparatus C1, C2, C3, C4 is parallel to each other and towards same direction.The public port outgoing beam to fixedly between the roof prism D this section light path be labeled as 10, be placed with 3 movable angle of wedge prism A1, A2, A3 on light path 10 directions.3 movable angle of wedge prisms link together by Metallic rod L1, L2, L3 and relay R 1, R2, R3 respectively, and relay can drive each movable angle of wedge prism light path 10 inside and outside switchings.
In first duty, movable angle of wedge prism A1 is arranged in light path 10, and other movable angle of wedge prisms are all outside light path 10.Light beam 10 penetrates with emergent light 11 through behind the movable angle of wedge prism A1, and light beam 11 is partial to certain angle clockwise with respect to light beam 10.Light beam 11 is through the translation of roof prism D and oppositely, incide with emergent light 21 on the logical light face of the fixed wedge angle prism E identical with movable angle of wedge prism A1 angle of wedge angle and angle of wedge direction, penetrate with light beam 31, light beam 31 is partial to certain angle counterclockwise with respect to light beam 21.After light beam 31 the translation, be coupled into optical fiber collimator C1 through fixing rhombic prism F1.
Second duty, movable angle of wedge prism A2 is arranged in light path 10, and other movable angle of wedge prisms are all outside light path 10.Light beam 10 penetrates with emergent light 12 through behind the movable angle of wedge prism A2, and light beam 12 is partial to certain angle clockwise with respect to light beam 10.Light beam 12 is through the translation of roof prism D and oppositely, incide with emergent light 22 on the logical light face of the fixed wedge angle prism E identical with movable angle of wedge prism A2 angle of wedge angle and angle of wedge direction, penetrate with light beam 32, light beam 32 is partial to certain angle counterclockwise with respect to light beam 22.After light beam 32 the translation, be coupled into optical fiber collimator C2 through fixing rhombic prism F2.
The 3rd duty, in movable angle of wedge prism A3 position and the highway 10, other movable angle of wedge prisms are all outside light path 10.Light beam 10 penetrates with emergent light 13 through behind the movable angle of wedge prism A3, and light beam 13 is partial to certain angle clockwise with respect to light beam 10.Light beam 13 is through the translation of roof prism D and oppositely, incide with emergent light 23 on the logical light face of the fixed wedge angle prism E identical with movable angle of wedge prism A3 angle of wedge angle and angle of wedge direction, penetrate with light beam 33, light beam 33 is partial to certain angle counterclockwise with respect to light beam 23.Light beam 33 is coupled into optical fiber collimator C3.
The 4th duty, all movable angle of wedge prisms are all outside light path 10.Light beam 10 is through the translation of roof prism D and oppositely, with emergent light 20 outgoing and be coupled into optical fiber collimator C4.
4 duty light paths are all reversible, so just realized the function of 1 * 4 photoswitch.
Fig. 5 is second embodiment of the utility model 1 * M * N photoswitch, 1 * 8 photoswitch.Public port collimating apparatus C0 and 8 output port optical fiber collimator C1, C2, C3, C4, C5, C6, C7, C8 is parallel to each other and towards same direction.Wherein optical fiber collimator C0, C1, C2, C3, C4 are fixed on above the first order metal platform of metal substrate, and optical fiber collimator C5, C6, C7, C8 are fixed on above the second level metal platform of metal substrate.The public port outgoing beam to fixedly between the roof prism D this section light path be labeled as 10, be placed with 3 movable angle of wedge prism A1, A2, A3 and 1 movable rhombic prism A4 on light path 10 directions, 3 movable angle of wedge prism A1, A2, A3 and 1 movable rhombic prism A4 link together by Metallic rod L1, L2, L3, L4 and relay R 1, R2, R3, R4 respectively, and relay can drive 3 movable angle of wedge prism A1, A2, A3 and 1 movable rhombic prism A4 light path 10 inside and outside switchings.
When movable angle of wedge prism A1, A2, A3 are in the light path 10 successively, when movable rhombic prism A4 is positioned at outside the light path 10, light beam 10 is respectively through the deviation of three movable angle of wedge prisms, form irradiating light beam 41,31,21,3 bundle output light are compared to light beam 10, all clockwise deflection certain angle.Light beam 41,31, after 21 the translations and acting in opposition through fixing roof prism D, also see through and movable angle of wedge prism A1 with light beam 42,32,22 outgoing respectively, A2, on the logical light face of the fixed wedge angle prism E that A3 angle of wedge angle and angle of wedge direction are identical, with light beam 43,33,23 outgoing, 3 bundle light are compared to light beam 42,32,22 and all have been rotated counterclockwise certain angle.After light beam 43 the translation through fixing rhombic prism F1, be coupled into optical fiber collimator C1 with emergent light 44, after light beam 33 translation through fixing rhombic prism F2, be coupled into optical fiber collimator C2 with emergent light 34, light beam 23 directly is coupled into the straight device C3 of quasi-fiber.
When all 3 movable angle of wedge prism A1, A2, A3 and 1 movable rhombic prism A4 are all outside light path 10, after the translation and reflection of light beam 10 through roof prism D, be coupled into optical fiber collimator C4 with emergent light 20.
When movable rhombic prism A4 is positioned within the light path 10, movable angle of wedge prism A1, A2, A3 switch in the light path 10 successively, and light beam 10 forms irradiating light beam 41,31,21 respectively through the deviation of three prisms, 3 bundle output light are compared to light beam 10, all clockwise deflection certain angle.Light beam 41,31,21 through behind the movable rhombic prism A4, all upwards be offset certain altitude, the length of the logical light face of this height and movable rhombic prism A4 and the height that second level metal platform is compared to first order metal platform are consistent, outgoing beam 71,61,51 through the translation of fixing roof prism D and reverse after, with light beam 72,62,52 outgoing also see through and movable angle of wedge prism A1, A2, on the logical light face of the fixed wedge angle prism E that A3 angle of wedge angle and angle of wedge direction are identical, with light beam 73,63,53 outgoing, 3 bundle light are compared to light beam 72,62,52 all have been rotated counterclockwise certain angle.After light beam 73 the translation through fixing rhombic prism F1, be coupled into optical fiber collimator C5 with emergent light 74, after light beam 63 translation through fixing rhombic prism F2, be coupled into optical fiber collimator C6 with emergent light 64, light beam 53 directly is coupled into optical fiber collimator C7.
When movable rhombic prism A4 is positioned within the light path 10, when other movable angle of wedge prisms are positioned at outside the light path 10, light beam 10 is through behind the movable rhombic prism A4, upwards be offset certain altitude, the length of the logical light face of this height and movable rhombic prism A4 and the height that second level metal platform is compared to first order metal platform are consistent, light beam 10 is coupled into optical fiber collimator C8 through after the translation of fixing roof prism D and reflecting with emergent light 21.
So just realized the function of 1 * 8 photoswitch, under 8 kinds of duties, light path is all reversible.
Fig. 6 is second embodiment of the utility model 1 * M * N photoswitch, the three-dimensional structure diagram of 1 * 8 photoswitch.Wherein 3 is metal substrate, A1, A2, A3, A4 are movable rhombic prism, D is fixing roof prism, E is the fixed wedge angle prism, F1, F2 are fixing rhombic prism, and 1 is the first order metal platform of metal substrate, and optical fiber collimator C0, C1, C2, C3, C4 are fixed on above the metal platform 1,2 is second level metal platform, and optical fiber collimator C5, C6, C7, C8 are fixed on above the metal platform of the second level.
Claims (13)
1. 1 * M * N type photoswitch is characterized in that, includes:
1+M * N optical fiber collimator, one is public port optical fiber collimator (C00), all the other are M * N output, input port fiber collimating apparatus (C) of arranging, wherein, the port number that the M representative is horizontal, N represents progression longitudinally, and M, N all get the natural number more than or equal to 1, the output of described each file, input port fiber collimating apparatus (C) all are to be connected in series along the light path that is made of optical fiber, and described public port optical fiber collimator (C00) also is connected with the optical fiber that constitutes light path (10);
M-1 movable angle of wedge prism (A), along being arranged in order on light path (10) direction of described public port optical fiber collimator (C00), and by relay (R) control;
N-1 movable rhombic prism (B) is positioned at the back of movable angle of wedge prism (A), along being arranged in order on light path (10) direction of described public port optical fiber collimator (C00), and by relay (R) control;
A roof prism (D0) is positioned at the back of movable rhombic prism (B), and its incident light is the collimated light beam of public port optical fiber collimator (C00) incident or through movable angle of wedge prism (A) deviation or through the collimated light beam after movable rhombic prism (B) translation;
A fixed wedge angle prism (E0) is positioned on the exit end light path of roof prism (D0);
M-2 fixed prism (F) is separately positioned on each light path of fixed wedge angle prism (E0) outgoing, the light path of the corresponding row optical fiber collimator (C) of the output light path of each fixed prism (F).
2. 1 * M according to claim 1 * N type photoswitch is characterized in that, the plane of refraction unification of described movable angle of wedge prism (A) is towards the direction of movable rhombic prism (B), and has setting at interval between movable angle of wedge prism (A).
3. 1 * M according to claim 1 * N type photoswitch is characterized in that described movable angle of wedge prism (A) is the trapezoidal angle of wedge, and each movable angle of wedge prism (A) connects a relay (R) by a Metallic rod (L).
4. 1 * M according to claim 1 * N type photoswitch is characterized in that described movable rhombic prism (B) is the parallelogram prism, and each movable rhombic prism (B) connects a relay (R) by a Metallic rod (L).
5. according to claim 3 or 4 described 1 * M * N type photoswitch, it is characterized in that, described relay (R) drives M-1 movable angle of wedge prism (A) and N-1 movable rhombic prism (B) switches between first stop place and second stop place, described first stop place be the logical light face of M-1 movable angle of wedge prism (A) and N-1 movable rhombic prism (B) outside the light path (10) of public port optical fiber collimator (C00), second stop place is that the logical light face of M-1 movable angle of wedge prism (A) and the individual movable rhombic prism (B) of N-1 is in the light path (10) of public port optical fiber collimator (C00).
6. 1 * M according to claim 1 * N type photoswitch is characterized in that a described fixed wedge angle prism (E0) is a Dove prism; M-2 fixed prism (F) is fixing rhombic prism, and described fixedly rhombic prism is the parallelogram prism.
7. 1 * M according to claim 1 * N type photoswitch is characterized in that, described movable angle of wedge prism (A) is identical with the angle of wedge angle of described fixed wedge angle prism (E0).
8. 1 * M according to claim 1 * N type photoswitch is characterized in that described roof prism (D0) is a right-angle prism.
9. 1 * M according to claim 1 * N type photoswitch is characterized in that the incident beam and the outgoing beam of described roof prism (D0) are parallel to each other.
10. 1 * M according to claim 1 * N type photoswitch, it is characterized in that, described 1+M * N optical fiber collimator is separately positioned on each metal platform of metal substrate (J), wherein, on the 1st metal platform (1) of metal substrate (J), be arranged side by side public port optical fiber collimator (C00) and M output, input port fiber collimating apparatus (C) from left to right successively, and be in same surface level; The 2nd～N metal platform of metal substrate (J) (2 ... N) on, be arranged side by side M output, input port fiber collimating apparatus (C) by the left-hand right side, output, input port fiber collimating apparatus (C) set on each metal platform are in same surface level.
11. 1 * M according to claim 10 * N type photoswitch is characterized in that, the metal platform on the described metal substrate (J) is to be made of to N metal platform (N) the 1st metal platform (1), and N gets the natural number more than or equal to 1; In the described metal platform, all the other each metal platforms outside the 1st metal platform (1) are bow-shaped structural, and each metal platform (1 ... N) formation ladder-type structure from low to high.
12. according to claim 1 or 10 described 1 * M * N type photoswitch, it is characterized in that, described each movable angle of wedge prism (A) and each movable rhombic prism (B), fixedly roof prism (D0) and fixed wedge angle prism (E0) and fixedly rhombic prism (F) all be fixed on metal substrate (J) above; The relay (R) that drives each movable angle of wedge prism (A) and movable rhombic prism (B) is connected on the control circuit, and described control circuit and metal substrate (J) are fixed together.
13. 1 * M according to claim 1 * N type photoswitch is characterized in that, described light path from public port optical fiber collimator (C00) to M * N output, input port fiber collimating apparatus (C) is reversible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201416033U CN201278031Y (en) | 2008-08-15 | 2008-08-15 | 1*M*N optical switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201416033U CN201278031Y (en) | 2008-08-15 | 2008-08-15 | 1*M*N optical switch |
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| CN201278031Y true CN201278031Y (en) | 2009-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008201416033U Expired - Lifetime CN201278031Y (en) | 2008-08-15 | 2008-08-15 | 1*M*N optical switch |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360102A (en) * | 2011-11-14 | 2012-02-22 | 桂林市光隆光电科技有限公司 | 1 X N optical switch |
| CN103048738A (en) * | 2012-12-27 | 2013-04-17 | 中国电子科技集团公司第三十四研究所 | N+1 optical path protection optical switch module |
| CN103281153A (en) * | 2013-06-20 | 2013-09-04 | 中央民族大学 | Reconfigurable optical add drop multiplexer based on M*N ports of silicon substrate liquid crystal |
| CN109425936A (en) * | 2017-08-31 | 2019-03-05 | 上海永鼎光电子技术有限公司 | A kind of photoswitch |
| CN109917516A (en) * | 2019-03-29 | 2019-06-21 | 中国计量大学 | A kind of compact wavelength division multiplexer |
| CN110320608A (en) * | 2018-03-30 | 2019-10-11 | 福州高意通讯有限公司 | A kind of 1xN mechanical optical switch |
-
2008
- 2008-08-15 CN CNU2008201416033U patent/CN201278031Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360102A (en) * | 2011-11-14 | 2012-02-22 | 桂林市光隆光电科技有限公司 | 1 X N optical switch |
| CN103048738A (en) * | 2012-12-27 | 2013-04-17 | 中国电子科技集团公司第三十四研究所 | N+1 optical path protection optical switch module |
| CN103048738B (en) * | 2012-12-27 | 2015-04-15 | 中国电子科技集团公司第三十四研究所 | N+1 optical path protection optical switch module |
| CN103281153A (en) * | 2013-06-20 | 2013-09-04 | 中央民族大学 | Reconfigurable optical add drop multiplexer based on M*N ports of silicon substrate liquid crystal |
| CN103281153B (en) * | 2013-06-20 | 2016-01-20 | 中央民族大学 | A kind of Reconfigurable Optical Add/drop Multiplexer of the M × N port based on liquid crystal on silicon |
| CN109425936A (en) * | 2017-08-31 | 2019-03-05 | 上海永鼎光电子技术有限公司 | A kind of photoswitch |
| CN110320608A (en) * | 2018-03-30 | 2019-10-11 | 福州高意通讯有限公司 | A kind of 1xN mechanical optical switch |
| CN109917516A (en) * | 2019-03-29 | 2019-06-21 | 中国计量大学 | A kind of compact wavelength division multiplexer |
| CN109917516B (en) * | 2019-03-29 | 2024-04-05 | 中国计量大学 | Compact wavelength division multiplexer |
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