FR2823859A1 - Support for positioning and holding of optical fibers comprises first part for holding non-stripped part of fiber and second part for holding stripped part of fiber for connection to optical device - Google Patents

Abstract

Optical fibers are positioned and held in a support comprising a first part (P1) that receives and holds the end of a non-stripped part (23) of the fiber and a second part (P2) that receives and holds the end of the stripped part (25) of the fiber. One end of the second part contacts the first part, and the other end is adapted to contact an optical device. Support for positioning and holding of optical fibers is adapted to receive one end of at least one optical fiber and connect it optically to an optical device. The optical fiber is non-stripped (23) on one part of the its end and stripped (25) on the remaining part of its end. The support comprises: a first part (P1) adapted to receive and hold the end of the non-stripped part of the optical fiber; and a second part (P2) adapted to receive and hold the end of the stripped part of the optical fiber. A first end of the second part (P1) of the support is in face-to-face contact with the first part (P1) of the support, and a second end of the second part (P2) of the support is adapted to face an optical device. The first part (P1) of the support comprises at least one recess (L1, L2, L3, L4) adapted to receive the non-stripped part of the fiber. One end of each recess forms an abutment. The depth of the recess is at least equal to the radius of the non-stripped part of the fiber. The second part (P2) of the support comprises a channel (30) for each fiber. The support can be adapted to receive a number of fibers. In this case, the second part (P2) comprises as many channels (30) as fibers to be positioned. The different channels (30) have a spacing at their first ends corresponding to at least the spacing of the fibers in the first part (P1) of the support, and a spacing at the second end corresponding to at least the inlets and/or outlets of the optical device to which the fibers are to be optically connected. Each channel (30) of the second part (P2) of the support comprises at least one so-called reference zone (31) having a pre-determined geometry, preferably V-shaped, situated at the second end and adapted to provide optical alignment of the fiber with the optical device. An Independent claim is given for a process for the production of the support.

Description

- detection of objects and help in their classification.

  FIBER POSITIONING AND HOLDING SUPPORT

  OPTICS AND ITS MANUFACTURING METHOD

DESCRIPTION

  Technical Field The present invention relates to a support for positioning and holding optical fibers in order to connect them optically to an optical component

  as well as its production process.

  It applies in particular in the field of optical telecommunications, in the field of optoelectronics for fiberizing in particular a matrix of laser diodes and more generally in all cases where it is necessary to position and maintain a fiber or a set of fibers with pitch and optical alignment constraints, in order to

  the optical connection of the fibers to an optical component.

  The term optical component is understood to mean both an all-optical component and an optoelectronic component, or generally any component comprising at least one optical input and / or one optical output. State of the art An optical fiber is generally formed from one or more cores arranged in an optical sheath. To mechanically stiffen the fiber, the optical sheath may be surrounded by a mechanical sheath, itself embedded in a soupliceau also called oversheath.

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  For example, a single-core fiber can comprise an optical sheath of 125 μm in diameter, a mechanical sheath of 250 μm in diameter and a soupliceau

900 µm in diameter.

  To position fibers opposite the optical inlets or outlets of a component, these fibers are currently placed in a support, after removing the soupliceau and the mechanical sheath at least from the portion of the fibers disposed in the support. The latter has parallel grooves, able to partially contain said fibers without the soupliceau and the mechanical sheath. The support generally comprises a counter blade which makes it possible to hold the fibers against the rest of the support. The grooves of the support are most often made by

  "V" (called in English terminology: V-

  groove). Figures la and lb schematically show in section examples of embodiment

conventional fiber supports.

  In the figure is shown an optical fiber 1. This fiber is successively deprived of its soupliccau 5, then of its mechanical sheath. The optical sheath 3 is then visible in the rest of the figure, and is able to be maintained by a fiber support 7. The latter consists of 2 parts 11 and 13 which sandwich the optical sheath 3 of the fiber 1. For better retention of the fiber, a groove (not shown) capable of receiving the fiber is generally made on at least one of the parts 11

and 13.

  In this example, the soupliceau is not secured to the support. In addition, the soupliceau and the

  mechanical sheath may not be fixed between them.

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  To allow better maintenance of the fiber 1, it is possible to add to the structure shown in FIG. 1a, two elements 15, 17 which sandwich this structure so that part of the soupliceau and the mechanical sheath is also taken in this sandwich. The assembly then obtained is shown in Figure lb. Figure 1c gives a schematic representation in top view of the structure of Figure 1a in the case of a support 7 now 8 fibers. Outside the support 7, the fibers flourish over a distance d, taking into account the change in diameter between the fibers without soupliccau

  and those same fibers with the soupliceau.

  Thus, although the use of a soupliceau and a mechanical sheath protects the fibers, it induces the creation of an intermediate zone between the fiber with soupliceau and the fiber without soupliceau; this intermediate zone is fragile. Known structures such as those shown in FIGS. 1a and 1c are therefore particularly fragile, since the intermediate zones do not include a soupliceau. Furthermore, the use of elements 15 and 17 located on either side of the support and bearing on the fiber soupliceau, such as those represented in FIG. 1b, make it possible to partially maintain the soupliceau and the mechanical sheath but they do not do not always prevent it from moving between said elements which does not allow the fragility of the structure to be eliminated. In addition, the end of the soupliceau not being at a precise distance from the support, the elements 15 and 17 must be long enough to be sure that the soupliceaux of the different fibers are well

  positioned between said elements.

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  The fragility of the known structures, induces problems in particular of handling in particular when the end of the fibers located in the support

must be polished.

  Finally, the distance between the end of the fiber capable of being optically connected to a component and the so-called fragile area is all the more important as the number of fibers disposed in the

support is great.

  Also, the housing used to integrate the support and the fragile zone of the fibers is all the more

  important that the number of fibers is important.

  The object of the present invention is to provide a support for positioning and holding optical fibers which does not have the limitations of the structures described above. In particular, an object of the invention is to provide a rigid positioning and holding support allowing in particular easier handling.

than that of the prior art.

  Another object is still to provide a more compact support than those of the prior art for

a given number of fibers.

  The subject of the invention is also a method of producing the positioning support and

holding.

  More precisely, the positioning and holding support of the invention is capable of receiving one end of at least one optical fiber to be optically connected to an optical component, this fiber being stripped on a part of said end, this support comprising:

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  - A first part able to receive and maintain the end of the non-stripped fiber, and - a second part secured to the first part and able to receive and maintain the stripped part of the fiber, a first end of the second part being opposite the first part and a second end of said second part being able to be placed opposite the optical c-component. According to the invention, the term “stripped fiber” is understood to mean fiber without mechanical cladding and / or without mechanical sheathing and non-stripped fiber, fiber with macanic sheathing or even even sheathing. mecanlque. Thus, generally, the stripped fiber comprises at least the optical path (s) and the optical sheath. In certain particular cases such as for example that of multimode fibers, it is possible to envisage positioning the fiber with its mechanical sheath. The stripped fiber then corresponds to the fiber without soupliceau and the non-stripped fiber to the fiber with soupliccau. In the other cases, the positioning of the fiber is carried out from the optical sheath, the diameter of which is precisely known, the stripped fiber then corresponds to the fiber without mechanical sheath and without soupliccau and the non-stripped fiber to the fiber with the mechanical sheath and most often

with soupliccau.

  The support of the invention makes it possible to position and maintain the end of the non-stripped and stripped fiber in the same support, which makes it possible to stiffen this end of the fiber which is in particular fragile due to the presence of the zone

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  intermediary located between the stripped part and the

non-stripped part of the fiber.

  According to a first embodiment, the first part comprises a housing capable of receiving the non-stripped fiber, one of the walls of said housing

  forming a stop for the non-stripped fiber.

  The use of a stopper necessarily makes it possible to have the positioning of the soupliceau and the mechanical sheath of the fiber in the support and this over a length corresponding to that of the housing, which makes it possible to avoid the uncertainties of positioning of the prior art, and therefore makes it possible to contribute to a reduction in the dimensions of the entire structure

holding and positioning.

  Advantageously, the depth of the housing is at least equal to the radius of the non-stripped fiber. According to another embodiment, the support being able to receive several fibers, the first part comprises at least one housing for said fibers and advantageously a housing by fiber for better rigidity and more fiberizing.

simple support.

  According to a first embodiment, the second part includes a groove for positioning and holding the part of the stripped fiber. According to a second embodiment, the support being able to receive several fibers, the second part comprises a groove per fiber, the different grooves having a pitch at the first end corresponding at least to the pitch of the fibers in the first part and a pitch to the second end corresponding to the pitch of the inputs and / or outputs

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  optics of the component to which the fibers are to be

optically connected.

  The second part of the support of the invention therefore allows fibers to flourish in the support and not outside the support as in the prior art; this also contributes to a reduction in the dimensions of the entire holding and positioning structure. Advantageously, each groove of the second part comprises at least one zone called the reference zone having a determined geometry, located at the second end and capable of allowing alignment.

  fiber optic with the component.

  This reference zone also makes it possible to obtain a reference surface. This area may be on the whole groove or only on a part. In the latter case, each groove may comprise several reference zones and preferably at least 2 zones, advantageously located at each end of said groove so that when a fiber rests in said zones, a covering element disposed above the fibers will be positioned parallel to these areas and will therefore form a reference surface parallel to the element

  in which these zones are realized.

  Preferably, the reference zones are formed by a "V" allowing respectively to offer two support points to the fiber according to a section of

  this and therefore precise positioning of the fiber.

  Outside this or these zones, the groove can have any shape and for example be produced by

a "U" shape.

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  According to one embodiment of the invention, the support is formed by 2 elements, one of the elements being called the support element and the other element being called the covering element, the end or ends of the fibers to be maintained being arranged between these elements, the first part of the support then corresponding to a part of the assembly formed by these 2 elements and the second

  part of the support to the rest of this set.

  Preferably positioning shims are located between the 2 elements, these shims are produced for example by grooves formed at least in one of the elements and fibers for example of the same type as those of the second part. These shims also make it possible to obtain a reference surface via the covering element; also when shims are made in the support, only one reference zone per groove is necessary to ensure optical alignment, the reference surface then being obtained thanks to the shims and possibly

to the reference areas.

  According to a first embodiment, the housing or housings of the first part and the groove or grooves of the second part are produced in the support element, the covering element being superimposed on the support element by bearing on the or the fibers arranged in the groove (s) of the support element. In this embodiment, preferably, the optical axis of the fiber is located between the 2 elements and the depth of the grooves and

  accommodation is adapted accordingly.

  According to a second embodiment, the housings of the first part and the grooves of the second part are produced partly in the element

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  support and partly in the covering element.

  In this embodiment, the depth of the housings is adapted to contain the non-stripped fiber. In addition, in this embodiment, when the stripped fiber corresponds to the fiber without mechanical sheath and without soupliccau, the latter can be only partially stripped in the groove outside the reference zone, that is to say does not include that the mechanical sheath, the dimension of the groove outside this zone is then adapted to

  partially contain the mechanical sheath.

  The invention also relates to an example of a method for producing the support of the invention, this method comprises the implementation, at least on one of the elements, of the following steps in this order or in a different order: a) formation of all or part of the housing (s) in the first part, b) forming all or part of the housing (s)

grooves in the second part.

  The support comprising positioning shims, the method of the invention comprises during step b), the production of all or part

holds grooves.

  Thus, steps a) and b) of the method of the invention can be carried out either on the support element or on the support element and the covering element. According to a first embodiment, step a) consists in etching the element through a

  appropriate mask and to remove said mask.

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  According to a second embodiment, step a) consists in performing laser machining of the element. According to one embodiment, step b) consists in etching the element through at least one

  appropriate mask and to remove said mask.

  According to a particular embodiment, step b) comprises the production of a first etching through a first mask then the elimination of said mask and the production of a second etching through a second mask and the elimination of said second mask, the second etching makes it possible to form the reference zone or zones and the first etching makes it possible to form the rest of the groove or grooves. Indeed, the flourishing of the grooves in the second part does not allow to have an engraving of precise geometry on the whole of the groove, also step b) comprises an engraving of the reference zones according to precise planes and a coarser etching to make the rest of the grooves, the coarser etching generally being re-used to a depth

  greater than that of precise engraving.

  According to one embodiment, the element being in it. ic ium, an intermediate layer of sil ice is formed on the element and the etching of step a) is an anisotropic etching carried out successively in the silica layer and in the silicon element through a resin mask, the first etching of step b) is an anisatropic etching carried out successively in the silica layer and in the silicon element through a resin mask, and the second etching of step b) is an anisotropic etching in the layer of silica and according to crystalline planes determined for example (1,1,1) and (1, -1,1)

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  in the silicon element, said second etching being carried out through a resin mask, the layer

  of silica then being removed.

  Other features and benefits of

  the invention will emerge more clearly from the description which follows

  follow, with reference to the figures in the accompanying drawings.

  This description is given purely

illustrative and not limiting.

brief description of the fiours

  - Figures la, lb and lc, already described, schematically illustrate known supports of fibers, - Figures 2a, 2b and 2c schematically show a first embodiment of a support according to the invention, and an example of end of a fiber to be positioned in the support - Figures 3a, 3b and 3c schematically represent a second embodiment of a support according to the invention, - Figures 4a, 4b and 4c schematically represent the secondTheme embodiment of the support according to the invention with fibers positioned therein, - Figures 5a to 5e illustrate examples of embodiment of the first and second parts of the support of the invention and, - Figures 6a, 6b and 6c respectively illustrate usable masks for the

  realization of the first and second parts.

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  Detailed description of modes of implementation of the invention FIG. 2a shows schematically and in perspective a first embodiment of a support according to the invention and FIG. 2b a section through the end of a fiber to be positioned in the support , along a plane parallel to the XY plane. Figure 2c is a sectional representation of the support of Figure 2a

in a plane parallel to the XZ plane.

  In FIG. 2a, the positioning support of the invention comprises a support element 20 capable of receiving the end of four optical fibers. Each fiber end comprises (see FIG. 2b) a non-stripped portion 23 (for example comprising a mechanical sheath and a soupliceau) and a stripped portion 25, corresponding to the portion of the

  fiber which must be cptically connected to a component.

  The stripped part 25 no longer comprises, for example, a mechanical sheath and a soupliceau; only the sheath

optical is then visible.

  For example, in current fibers, the soupliceau can have a diameter of 900 μm, the mechanical sheath a diameter of 250 μm and the

  optical sheath with a diameter of 125 µm.

  Element 20 has a first part P

and a second part P2.

  The first part P1 is able to receive and maintain the end of the non-stripped fiber 23 and the second part P2 is integral with the first part and able to receive and maintain the stripped part of the end of the fiber; the second part being on the one hand in contact with the first part and on the other hand, capable of being placed opposite the component

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  optic to which the fibers are to be optically connected. In this exemplary embodiment, the first part P1 includes a fiber housing to be maintained, referenced L1, L2, L3 and L4. Each housing comprises two walls substantially parallel 28, 29 to the plane XZ, a wall 27 substantially parallel to the plane YZ

  and a bottom substantially parallel to the XY plane.

  The non-stripped fiber abuts the wall 27, when the fiber is introduced into the support. The dimensioning of each housing is provided so that the two walls 28 and 29 are spaced from each other by a distance at least equal to the diameter of the non-stripped fiber and the height of the walls is provided at least equal to the radius of the

non-stripped fiber.

  Furthermore, the width of the walls 28, 29 as well as that of the bottom in the direction X is determined so that a sufficient length of non-stripped fiber rests in the housing to ensure the

  stiffness of the support provided with the fibers.

  For example, for an uncovered fiber of 900 μm in diameter, a length of fiber

  not bare at least 1 mm is required.

  In the case where a housing is intended to receive several fibers, the distance between the two walls 28 and 29 is at least equal to the sum of the

  diameters of these different fibers.

  The second part P2 of the support element has as many grooves 30 as there are fibers for the

  positioning of the part of the stripped fibers.

  In this example, the different grooves open into the housings of the first part in

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  having a pitch corresponding to the pitch of the housings in the first part. The other end of the grooves is free; the pitch of the grooves at this end corresponds to the pitch of the optical inputs and / or outputs of the component to which the fibers are to be

optically connected.

  The grooves 30 of the part P2 of the support make it possible to carry out a change of pitch and thereby ensure a development of the fibers in the support and not outside the support as in the prior art. To simplify, the representation of Figure 2c, there is shown in section the assembly of a groove 30 and the corresponding housing L3, in the same plane, parallel to XZ which may not be the case when there is several fibers to position, since

  the groove is then not linear.

  To allow the optical alignment of each fiber with the corresponding optical input or output of the component, each groove of the second part comprises at least one reference zone 31 having a determined geometry, located at the free end of the groove. This zone 31 also makes it possible to obtain a reference surface. This area may be on the whole groove or only on a part. There may also be several areas of

  geometry reference determined in the groove.

  In the example of FIGS. 2a and 2c, each groove has two reference zones 31 and 35 having said determined geometry, situated at each end of the groove, so that when fibers are positioned in the support element and that a covering element such as a glass slide is positioned on this assembly to maintain the

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  fibers, these two reference zones via the fibers make it possible to position the covering element parallel to the support element with respect to the XY plane. The covering element then forms a reference surface which can be used in particular for alignment.

  support optics with the component.

  Preferably, the zones of determined geometry are formed by "Vi 'making it possible to offer two support points to the fiber, considered in a section perpendicular to the axis or to the optical axes of the fiber; outside this or these areas 31, 35, the groove may have any shape and for example be produced by a "U" shape generally deeper than the "V" shape for advantageously,

  avoid pressing the fiber on the bottom of the "U".

  For better support of the assembly, glue or any other means of support is preferably used between the support element and the

  fibers and possibly the covering element.

  Figures 3a, 3b and 3c schematically show a second embodiment of a support according to the invention for five fibers, this support being formed by a covering element and a support element. FIG. 3a represents the support element seen from above in a plane parallel to the plane YX, FIG. 3b illustrates the covering element seen from below in a plane parallel to the plane YX and finally, FIG. 3c gives a section of the support element in a

plane parallel to the ZX plane.

  In this exemplary embodiment, the support element and the covering element respectively comprise housings and grooves for the non-stripped and stripped fibers. The distribution of said housings and grooves on two elements instead of one

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  alone as in the example of FIGS. 2a to 2c allows

  to obtain a more compact structure.

  More specifically, the support element 40 comprises 3 housings L1, L2, L3 for three of the non-stripped fibers. The other two housings L4 and Ls are produced in the covering element 50. The grooves 30 used for positioning the stripped fibers are also distributed over the two elements and 50, however the reference zones 31 of the grooves are arranged in duplicate on the two elements so that there are five reference zones respectively on each element, these zones making it possible to sandwich the five fibers. In these reference zones, the fibers are either in a housing and a groove in the element 40 or in a

  housing or a groove of the element 50.

  In this example, only one reference zone per fiber and per element is produced. Also, to allow to have, the covering element parallel to the support element, shims of

  positioning are also performed.

  By way of example, these shims can be produced by grooves of determined geometry from the

  same type as that of the reference zones.

  These grooves are made on one of the elements or as in this example on the two elements so that they make it possible to take a

fiber sandwich.

  Thus a groove 43 and a groove 41 are arranged in the direction X respectively on either side of the grooves 30 of the support element and a groove 47 and a groove 45 are arranged in the direction X on either side of the grooves 30 of the element 50. These grooves can be continuous as

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  shown in these figures or discontinuous. These grooves allow you to take a sandwich fiber; thus, the groove 41 pairs with the groove 47 and the groove 43

pairs with groove 45.

  FIGS. 4a, 4b and 4c schematically represent the superposition of the elements 40 and 50 of FIGS. 3a and 3b with fibers positioned between

these elements.

  Figure 4a is a section through this assembly in a plane parallel to the XZ plane, Figure 4b is a section along a plane parallel to the YZ plane and passing through the first part and Figure 4c is a section along a plane parallel to the YZ plane and passing through the zones

  of references of the second part.

  We can clearly see in these figures the grooves 43 and 45 which form with a fiber F1, a wedge C1 and the grooves 41 and 47 which form with a fiber F2 a wedge C2; these wedges C1 and C2 make it possible to have constant spacing between the two elements. The fibers F1, F2 interposed between these grooves have no optical role here, it simply plays with the grooves the role of shims, they are preferably of the same diameter as

  the fibers in the reference areas.

  Furthermore, it can be noted in this example that the non-stripped fibers are arranged in one of the elements while at the level of the reference zones the stripped fibers are interposed between

the two elements.

  The following figures illustrate an embodiment of an element of the invention which can

  be a support element or a covering element.

  To simplify the description, we will

  consider making a support element for 2 fibers. Thus, FIGS. 5a to 5e illustrate in section SP l9610 JL in planes parallel to the plane YZ, the production of the first and second parts of a support element and, FIGS. 6a, 6b and 6c illustrate in top view respectively usable masks for the realization of these first and two parts. From a substrate 60, for example made of silicon, a conventional layer of silica 61 (FIG. 5a) is then formed by all the conventional techniques, including that of thermal oxidation, followed by a layer of resin 63 (FIG. 5b). The resin layer is then exposed so as to obtain, after development of the resin, a mask A (see FIG. 6a) having patterns M1, M2 corresponding to the housings to be produced in the substrate 60. The openings 65 of the corresponding resin layer the patterns of the mask (Figure 5c) are then transferred to the layer of s il. ice by reactive ion etching or chemical etching, for example from a solution of CHF3 or CF4. The resin is then removed. The next step illustrated in FIG. 5d consists in etching the substrate 60 through the layer of silica 61 in order to produce the openings 65, in this layer which will form the housings of the support element. The etching of silicon is an anisotropic etching and for example a dry etching of reactive ionic type or SF6 or of type

  wet with a solution of KOH or pyrocathecol-

  diethylamine. After the housing has been produced, the grooves of the housing are produced in the same way as described above with reference to FIGS. 5b to 5d

  second part with the exception of the reference zones.

  Thus, on the layer of silica, a new layer of resin is deposited which we will expose and develop so as to obtain, on the layer of silica 61, a mask

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  B shown in Figure 6b. This mask comprises two patterns R1 and R2 corresponding to part of the grooves, to be transferred into the substrate 60. The patterns R1 and R2 make it possible, as described above, to etch openings 65 ′ in the layer of silica and then in the substrate 60. The width and depth of the openings' obtained in the substrate 60 along the plane of Figure 5d are of course smaller in the case of the production of the grooves than in the case of the production of the openings 65 corresponding to

  housing. The resin is then removed.

  The mask B could also have the patterns M1 and M2 of the mask A. Under these conditions, the production of the housings would be obtained from the superposition of two engravings: a partial etching of the substrate according to the motif A, this etching being completed by the etching of the substrate according to the mask B. One could also consider making the housings and the grooves by direct machining of the

substrate for example by a laser.

  Finally, the reference zones are produced.

  For this, a layer of resin is again deposited which is exposed and which is developed so as to obtain a new mask C shown in FIG. 6c. The patterns z1 'Z2' Z3 and Z4 of the mask define the geometry of the reference areas in a plane parallel to the XY plane. In this example, there are four reference areas, one at each end of the two grooves. The patterns of the mask C are then transferred into the silica layer 61, by an etching of the same type as those made through the masks A and B. we then obtain openings 67. These openings allow the substrate to be etched according to crystallographic planes individuals for example (1,1,1) and (1, -1,1) and

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  to obtain a "V" etching in the substrate,

  each of the openings 67 (see FIG. 5e).

  As an example for a silicon substrate, an anisotropic wet etching with a KOH solution can be used. Although not shown in these figures, grooves for making the shims can be, when they exist, make at the same time and

  same way as the reference areas.

  When the various housings and grooves (including the reference zones) have been produced in the substrate, the last resin is removed and then the layer of silica 61. An etching of the end of the substrate comprising the housings, for example by a saw cut, then eliminates one of the side walls of said housing, to allow

  the introduction of non-stripped fibers.

  The depth of the different engravings depends of course on the diameters of the fiber. Thus, for a fiber having, when it is not stripped 900, um in diameter and when it is stripped 125, um in diameter, there will be housings of about 502, um in depth, grooves outside of the reference zones. about 115 µm deep and areas

  reference of about 108 µm deep.

  In the previous examples, fiber supports have been shown with one housing per fiber, but of course, the supports may have a single housing for all of the fibers to be maintained or several housing for the set of fibers, each housing allowing receive

several fibers.

  Furthermore, the supports of the invention

  can hold a single fiber or multiple fibers.

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  Finally, the other components which must be connected to the flares maintained by a lounge support 1'1nvenL10n, may also be connected or mama realists directly over a year from the suporL, next to the flares, or be disposed rox1m1Ld from the supporL

fiber look.

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Claims (21)

  1. Positioning and holding support capable of receiving one end of at least one optical fiber to be optically connected to an optical component, this fiber being non-stripped (23) on part of said end and stripped (25) over the rest of the end, this support comprising: - a first part (P1) capable of receiving and maintaining the end of the non-stripped fiber, and - a second part (P2) integral with the first part and capable of receiving and maintaining l end of the stripped fiber, a first end of the second part being opposite the first part and a second end of said second part being able to be placed opposite the optical component. 2. Support according to claim 1, characterized in that the first part (Pl) comprises at least one housing (Ll, L2, L3, L4) capable of receiving the non-stripped part of the end of at least one fiber,   one of the walls of each housing forming a stop.   3. Support according to claim 2, characterized in that the first part comprises a fiber housing.   4. Support according to claim 2, characterized in that the depth of the housing is at   less equal to the radius of the non-stripped fiber.   5. Support according to claim 1, characterized in that the second part (P2) comprises SP 19610 JL   a groove (30) per fiber, suitable for receiving the part   stripped of the end of the fiber.   6. Support according to claim 5, characterized in that the support being able to receive several fibers, the second part has as many grooves as fibers to be positioned, the different grooves having a pitch at the first end corresponding at least to the pitch of fibers in the first part and a pitch at the second end corresponding to the pitch of the optical inputs and / or outputs of the component to which the fibers are to be optically connected. 7. Support according to claim 5, characterized in that each groove of the second part comprises at least one area called the reference area (31) having a determined geometry, located at the second end and capable of allowing a   optical alignment of the fiber with the component.   8. Support according to claim 7, characterized in that each groove has at least two reference zones (31, 35) located at each end of said groove.   9. Support according to claim 7 or 8, characterized in that said reference zone is formed by a "V".   10. Support according to claim 1, characterized in that the support is formed by two elements, one of the elements being called support element (40) and the other element being called element of SP 19610 JL   recoverremeoL (SQ), the extremity or the ends of the blue fibers disossed between these lmenLs, the first talk of the suporL corresponds then a part of the whole formed by these two men and the second arlle of the support, to the resle of this set . 11. SupporE according to claim 1D, characL4ris in that the suorL comprises in addition to shims (C C of positioning if removed from the element   suporL and the positioning element.   12. Support according to claim 11, characterized in that said wedges are made by grooves (41, 43, 45, 47) formed at least in one   elements and by fibers (F F.).   13. Support according to claim 10, characterized in that the rem13re part comprises one or more housings and the deux16me part comprises one or more grooves, les1ts housing (s) and groove () {both in the support element.   14. Substrate according to claim 10, characterized in that the rear shelf comprises housings and the second part comprises grooves, said housings and grooves being partly made in the support element and partly in the covering element . 15. Support according to the claims 8 and, characterized in that the covering element being released on the fiber or fibers disosed in the reference zones of the second part, the element   overlap forms a reference surface. SP 19610 JL   16. Method of producing the support according to   any of the preceding claims,   characterized in that it involves the implementation of at least one of the elements of the following stages: a) formation of all or part of the housing (s) in the first part, b) formation of all or part of the housing (s) grooves in the second part.   17. A method of producing the support according to claim 16, characterized in that the support further comprising positioning shims formed by grooves, the method comprises during step b),   the realization of all or parts of said paths.   18. A method of producing the support according to claim 16, characterized in that step a) consists in etching the element through a mask   appropriate (A) and to remove said mask.   19. A method of producing the support according to claim 16, characterized in that step b) consists in etching the element through at least one   mask (B. C) appropriate and to eliminate said mask.   20. A method of producing the support according to claim 19, characterized in that step b) comprises producing a first etching through a first mask (B) then eliminating said mask and producing a second etching through a second mask (C) and elimination of said second mask, the second etching makes it possible to form the reference zone or zones and the first SP 19610 JL   etching helps form the rest of the grooves. 21. Method for producing the support according to   claims 18 and 20, characterized in that   the element being in silicon, the etching of step a) is an anisotropic etching, the first etching of step b) is an anisotropic etching and the second etching of step b) is an etching according to plans determined lenses.