CN201886170U - Optical switch module - Google Patents

Abstract

The utility model provides an optical switch module, which is characterized in that a substrate is designed to present an arc shape, the edge of the substrate is in a shape of a reverse gear or reverse saw teeth, the metal tooth surfaces are fewer in the direction near the circle center, output optical fibers are distributed on each single metal tooth, and trapezoidal notches with the narrower outer sides and the wider inner sides are formed between the two adjacent output optical fibers. An output end optical fiber array seat is made of low-expansion-factor metal alloy materials through precise processing, concave-convex structures in a shape of a reverse gear or saw teeth are distributed on the outer ends of the circular arc-shaped materials, lug bosses have a certain angle and distance, one optical fiber is placed on each lug boss, and the optical fibers are fixed on the lug bosses through welding or other processes. An optical switch produced by adopting the method disclosed by the utility model has the characteristics that the optical switch can be fast produced and debugged and is convenient to maintain, in addition, more input units can be placed in a small space range, and the optical switch with a larger number of ports can be manufactured.

Description

Optical switch module

Technical field

The utility model belongs to a kind of optical communication network element, particularly a kind of light path of large port switching photoswitch.

Background technology

Parallel photoswitch output, the input platform of being equipped with on the base plate of tradition photoswitch, input optical fibre is connected on the travel(l)ing rest, output optical fibre is installed on the photoswitch output stage of monoblock with the form that is arranged side by side, by moving or rotation of control input optical fibre support, make output optical fibre of the each aligning of input optical fibre realize the coupling conducting of this optical fiber.Because optical fiber is very tiny, requires its mutual alignment precision very high again, that is to say that the positioning accuracy request that the output optical fibre support is installed is very high.And the installation method that uses at present is with welding or adhesion process output optical fibre to be adhered on the photoswitch input platform, its method for making is when the input optical fibre support is positioned at specific design attitude at every turn, output optical fibre is accurately aimed at behind the input optical fibre with welding or viscose glue output optical fibre is bonded on the photoswitch output stage.Be subjected to the influence of natural environmental condition very big with the bonding photoswitch of glue, when the bigger occasion of difference variation is used, owing to the reason of expanding with heat and contract with cold, the position of output optical fibre has a spot of change in displacement, this variation is enough to have influence on the accurate aligning of input optical fibre and output optical fibre, besides since environmental baseline badly add long use, glue is easy to aging and loses bonding effect, cause coming off of output optical fibre and bottom support platform, these situations all can influence normal light transmission and cause serious consequence.People's spot welding once on probation or Laser Welding (LBW) directly are welded on the metal photoswitch output stage connecing output optical fibre, because the arrangement of output optical fibre is very tight, when certain output optical fibre of welding, the moment High temperature diffusion that produces because of the heat transfer effect of metal, the heat conduction temperature raises and makes the photoswitch output stage produce the thermal expansion distortion, influence the precision positioning of its adjacent output optical fibre that has welded, caused inaccurate when receiving conduction, influenced coupling effect.

The utility model content

The purpose of this utility model provides a kind of optical switch module, and it can realize firmly connecting fast and accurate location of output port.

Technical solution adopted in the utility model is:

This optical switch module, comprise substrate plate 2, the output optical fibre 1 of photoswitch is evenly distributed on the substrate metal tooth 4 by the certain angle distance, input optical fibre 3 is installed on the movable rotation arm 6, it is characterized in that: substrate plate 2 is designed to arc, and its edge is the pawl wheel or the zigzag fashion that falls, and is few more the closer to the direction metal flank of tooth in the center of circle, output optical fibre 1 is distributed in each above the independent metal-toothed 4, is the trapezoidal notch 5 of outer narrow inner width between adjacent two output optical fibres.

Substrate plate 2 is installed base station arc outward flange and is presented the equally distributed pawl wheel or the zigzag of falling, and the position of formed trapezoidal notch 5 is broadened by narrow toward center of circle direction from outer rim, and promptly the part of metal-toothed is narrowed down by wide toward center of circle direction from outer rim.

This photoswitch is different with existing photoswitch, and common switch adopts the mode of input-output unit parallel arrangement, realizes switching by the rectilinear motion of input block; This switch then comprises arc substrate plate and the photoswitch fan-shaped output collimation unit and the photoswitch input collimation unit that are fixed on the substrate plate, output collimation unit and output optical fibre are connected the pawl wheel or fall on the flank of tooth of sawtooth, all unit optical fiber outwardly, collimation is fan-shaped array towards the center of circle, makes that each existing unified integral body in collimation unit is relatively independent again; Input collimation unit and input optical fibre are installed in photoswitch arc substrate plate platform central authorities home position according to the fixed form of clock and watch pointer, input collimation unit can be by any one output collimation unit of arranging on the alignment light switch substrate plate respectively of turn-taking, and the conducting of the incompatible realization different fiber of the optocoupler circuit by input collimation unit and output collimation unit transmits; Shift position or the turned position of input collimation unit on photoswitch input platform is that strict status requirement is arranged, and therefore requires the corresponding output collimation cell position of arranging of institute also will be very accurately and firm.Requirement at strictness like this, we improve traditional photoswitch production run, photoswitch described in the utility model has dovetail groove in the compartment of terrain on photoswitch output collimation unit and photoswitch input collimation unit opposing substrates, make the toothed disc of the whole shape of photoswitch output stage as upside-down mounting, output collimation unit is fixed on the substrate tooth of adjacent in twos projection separate mutually noninterfere correspondingly.When needing output collimation element solder in process of production on a certain metal-toothed, because this metal-toothed is relatively independent, therefore reduced the conducting path of heat to a certain extent, make when welding in the production run, the temperature at operation position can raise fast and weld, but can not have influence on the bearing accuracy of the adjacent output collimation unit that has welded, guarantee that its position is not subjected to the influence of temperature expansion factor.For reaching good thermal resistance effect, the pawl wheel should be long as much as possible near the recess at center, and its connection centre is narrow as far as possible.

The photoswitch that adopts mode of the present utility model to produce possesses can produce debugging fast, the characteristics of convenient for maintaining, and in little spatial dimension, can settle more input block, produce the more photoswitch of large port number.

Description of drawings

Fig. 1 is the utility model optical switch construction principle schematic.

Embodiment

Large port optical switch module of the present utility model comprises: output optical fibre 1, substrate plate 2, input optical fibre 3, metal-toothed 4, trapezoidal notch 5, movable rotation arm 6.

The mutual alignment accuracy of input/output port is the gordian technique that mechanical optical switch is produced, and selecting suitable base sheet material, encapsulating structure reasonable in design for use is the main way that solves light shutter device stability.Embodiment of the present utility model is exactly a material of selecting for use thermal expansivity low, reduces the structural change that temperature variation causes; And design the installation base of pawl colyliform, make that single output channel can be not only unified but also relatively independent, thereby further guaranteed the cold and hot stability of device three part faying faces, and then guaranteed the high and low temperature performance of device, simultaneously relatively independent output collimation unit, after also having made things convenient for formed product, the independent maintenance of a certain passage.

Substrate plate 2 is designed to arc, photoswitch output optical fibre 1 and photoswitch input optical fibre 3 are fixed on the substrate plate 2, output optical fibre 1 is connected pawl wheel or falls on the flank of tooth of jagged metal-toothed 4, output optical fibre 1 adopts welding or other technologies to be distributed in each above the independent metal-toothed 4, can carry out the micromechanics adjustment to a certain independent port within the specific limits.After the identical angular distance in the curved interval of output optical fibre port all with distribute, and its receiving port is to center of circle center aligned.All output optical fibres 1 are fan-shaped array towards the center of circle, make that the existing unified integral body of each output optical fibre is relatively independent again.Input optical fibre 3 is connected on the movable rotation arm 6, the rotation pivoted arm is installed in photoswitch arc substrate plate 2 platforms central authorities home position according to the fixed form of clock and watch pointer, input optical fibre 3 can be by any one output optical fibre 1 of arranging on the alignment light switch substrate plate respectively of turn-taking, and the conducting of the incompatible realization different fiber of the optocoupler circuit by input optical fibre 3 and output optical fibre 1 transmits; Photoswitch described in the utility model has trapezoidal notch 5 in the compartment of terrain on photoswitch output optical fibre and photoswitch input optical fibre opposing substrates, be to be the trapezoidal notch 5 of outer narrow inner width between adjacent two output optical fibres, make the toothed disc of the whole shape of photoswitch output stage as upside-down mounting, output optical fibre is fixed on the substrate tooth of adjacent in twos projection correspondingly, separate mutually noninterfere.When needing in process of production to be welded on output optical fibre on a certain substrate tooth, because this metal-toothed is relatively independent, therefore reduced the conducting path of heat to a certain extent, the temperature at operation position can be raise fast welds, but can not have influence on the bearing accuracy of the adjacent output optical fibre that has welded, guarantee that its position is not subjected to the influence of temperature expansion factor.For reaching good thermal resistance effect, dovetail groove should be long as much as possible; Simultaneously, because its each output optical fibre is on an independent convex side, in case when a certain output optical fibre goes wrong, convenient it is reprocessed, and near the good output optical fibre being not easy to have influence on.

Described large port photoswitch can adopt following technical scheme into and out of optical port: large port photoswitch input optical port is provided with one or M fiber port, go out optical port and be provided with N fiber port, but all M input optical fibre is installed on the pivoted arm of a pitch of the laps motion, all N output optical fibre is left dovetail groove to be distributed on the arc substrate plate towards the mode in the center of circle is fan-shaped in the place that output optical fibre is installed.

Output terminal fiber array seat is made by Precision Machining by low-expansion metal alloy compositions, be distributed with pawl wheel or jagged concaveconvex structure in the outer end of circular arc type material, the angular distance that boss is certain at interval, each boss is placed an optical fiber, adopt welding or other technologies that optical fiber is fixed on the boss, the metal thickness of each boss and unsplit bedplate junction should approach as far as possible, so that in debug process or after the integral product moulding, when finding that utmost point individual fibers channel parameters is defective, can adjust it separately, and when using welding technology, reduce base, be unlikely to influence the adjacent fiber passage welding the conduction of required heat.Can guarantee under less space permission situation, to produce the more photoswitch of large port number after using this technology.

Claims (2)

1. optical switch module, comprise substrate plate (2), the output optical fibre of photoswitch (1) is evenly distributed on the substrate metal tooth (4) by the certain angle distance, input optical fibre (3) is installed on the movable rotation arm (6), it is characterized in that: substrate plate (2) is designed to arc, its edge is the pawl wheel or the zigzag fashion that falls, the direction metal flank of tooth the closer to the center of circle is few more, output optical fibre (1) is distributed in each above the independent metal-toothed (4), is the trapezoidal notch (5) of outer narrow inner width between adjacent two output optical fibres.

2. optical switch module according to claim 1, it is characterized in that: substrate plate (2) is installed base station arc outward flange and is presented the equally distributed pawl wheel or the zigzag of falling, the position of formed trapezoidal notch (5) is broadened by narrow toward center of circle direction from outer rim, and promptly the part of metal-toothed is narrowed down by wide toward center of circle direction from outer rim.

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