WO2022192276A1 - Optical fiber management tray with adjustable fiber management component retainer arrangement - Google Patents

Abstract

Optical fiber management trays with adjustable retention arrangements for improved installing and removing of fiber management components on the trays without the need for adhesive or fasteners. The adjustable retention arrangements can include nesting features for minimizing a profile of a stack of the trays.

Description

Attorney Docket No.5654/02316.8241WOU1 OPTICAL FIBER MANAGEMENT TRAY WITH ADJUSTABLE FIBER MANAGEMENT COMPONENT RETAINER ARRANGEMENT Cross-Reference to Related Application This application is being filed on March 8, 2022 as a PCT International Patent Application and claims the benefit of U.S. Patent Application Serial No.63/158,000, filed on March 8, 2021, the disclosure of which is incorporated herein by reference in its entirety. Background Telecommunications systems typically employ a network of telecommunications cables capable of transmitting large volumes of data and voice signals over relatively long distances. Telecommunications cables can include fiber optic cables, electrical cables, or combinations of electrical and fiber optic cables. A typical telecommunications network also includes a plurality of telecommunications enclosures integrated throughout the network of telecommunications cables. The telecommunications enclosures (or “closures”) can include equipment having structures for routing and managing optical fibers. Typically, telecommunications closures house a fiber organizing assembly (or “organizer”) having equipment for organizing fibers, storing fibers, and optically connecting provider side fibers to subscriber side fibers. Such organizers typically include equipment, such as pivotally mounted trays, that can support fiber management components, such as power splitters, wave division multiplexers, and protective splice bodies. Organizers, for example, can include fiber optic power splitters (“splitters”), which are generally located in the proximity of fiber optic connectors and adapters to allow fiber optic cables to be selectively attached. Typical fiber optic splitters receive data signals via one or more fiber inputs. The splitters are often attached to a tray. The splitters divide each input data signal into a plurality of signals sent to a plurality of output ports of the respective splitter. Typical splitters may include 1x2, 1x4, 1x8, 1x16, 1x32 or higher dimension splitters. During use, it is desired that splitters and other fiber management components are protected and do not slide or move within the closure, as such movement can be damaging to the management components and/or to the fibers themselves. Summary In general terms, the present disclosure is directed to improvements in optical fiber management trays that can be used in optical fiber organizers housed in telecommunications closures. In one aspect, the present disclosure is directed to improvements in optical fiber organizers that can be housed in telecommunications closures. In another aspect, the present disclosure is directed to improvements in telecommunications closures. In another aspect, a fiber management tray includes an adjustable retainer arrangement for retaining a fiber management component on the tray. In another aspect, the adjustability of the retainer arrangement allows the arrangement to accommodate fiber management components of difference sizes. In another aspect, the retainer arrangement is configured to retain a fiber management component on a fiber management tray without adhesive and without a fastener. In another aspect, the tray is configured such that the fiber management component and the retainer arrangement do not increase a maximum height of the tray parallel to a stacking axis of the tray along which a plurality of the trays can be stacked when pivotally mounted to a tray support structure. In some examples, the fiber management component can include a power splitter (“splitter”) or a module that includes a power splitter. In some examples, the fiber management component can be a wave division multiplexer or a module that includes a wave division multiplexer. In some examples, the fiber management component can include a protective body that protects a splice between two optical fibers. According to certain aspects of the present disclosure, an optical fiber management tray for a telecommunications closure, includes: a fiber management surface defining a first axis and a second axis that are perpendicular to each other; an outer wall extending away from the fiber management surface, the fiber management surface and the outer wall defining a fiber work area of the tray, the fiber work area including: a retainer arrangement defining a pocket configured to retain a fiber management component, the retainer arrangement including: a component support surface; and a resilient arm extending from a fixed end of the resilient arm to a free end of the resilient arm, the resilient arm being configured to resiliently flex about the fixed end parallel to the fiber management surface, the resilient arm including an extension lip at the free end including a retaining surface, the retaining surface being configured to oppose the component support surface, the retaining surface and the component support surface being configured to engage the fiber management component and minimize movement of the fiber management component along a tray stacking axis, the tray stacking axis being perpendicular to the first axis and the second axis. According to further aspects of the present disclosure, an optical fiber management tray for a telecommunications closure, includes: a fiber management surface defining a first axis and a second axis that are perpendicular to each other; an outer wall extending away from the fiber management surface, the fiber management surface and the outer wall defining a fiber work area of the tray, the fiber work area including: a retainer arrangement defining a pocket configured to retain a fiber management component, the retainer arrangement including: a component support surface; and first resilient arm and a second resilient arm, each resilient arm extending from a fixed end of the resilient arm to a free end of the resilient arm, each resilient arm including an extension lip at the free end including a retaining surface, the retaining surface of each resilient arm being configured to oppose the component support surface, the retaining surface and the component support surface of each retaining arm being configured to engage the fiber management component and minimize movement of the fiber management component along a tray stacking axis, the tray stacking axis being perpendicular to the first axis and the second axis. According to further aspects of the present disclosure, a method of securing an optical fiber management component on an optical fiber management tray, includes: flexing one or more resilient arms of a component retainer arrangement of the tray away from a component retaining wall of the arrangement; positioning an optical fiber management component on a component support surface; and releasing the one or more resilient arms such that the one or more resilient arms move towards the retaining wall until an extension lip of each of the one or more resilient arms engages the fiber management component and secures the fiber management component between the extension lip and the component support surface. A variety of additional aspects will be set forth in the description that follows. The aspects relate to individual features and to combinations of features. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the broad inventive concepts upon which the embodiments disclosed herein are based. Brief Description of the Drawings The following drawings are illustrative of particular embodiments of the present disclosure and therefore do not limit the scope of the present disclosure. The drawings are not necessarily to scale and are intended for use in conjunction with the explanations in the following detailed description. Embodiments of the present disclosure will hereinafter be described in conjunction with the appended drawings, wherein like numerals denote like elements. FIG.1 is a perspective view of a telecommunications closure in accordance with the present disclosure, the closure being in a closed configuration. FIG.2 is a perspective view of the housing pieces of the closure of FIG.1. FIG.3 is a perspective view of a portion of an optical fiber management organizer according to the present disclosure. FIG.4 is an enlarged view of the called-out portion A in FIG.3. FIG.5 is an exploded view of the portion of the organizer of FIG.3. FIG.6 is a further exploded view of the portion of the organizer of FIG.3. FIG.7 is a planar view of an assembly of two of the stacked trays of the portion of the organizer of FIG.3 including fiber management components mounted to the trays. FIG.8 is a cross-section of the assembly of FIG.7 along the line B-B in FIG.7. FIG.9 is an enlarged view of the called-out portion D in FIG.8. FIG.10 is a cross-section of the assembly of FIG.7 taken along the line C-C in FIG.7. FIG.11 is an enlarged view of the called-out portion E in FIG.9. FIG.12 is a perspective view of one of the trays of the assembly of FIG.7, including the fiber management component mounted to the tray. FIG.13 is a side view of the tray of FIG.12. FIG.14 is a planar view of the tray of FIG.12, including the fiber management component mounted to the tray. FIG.15 is an enlarged view of the called-out portion F in FIG.14. FIG.16 is a perspective view of one of the trays of the assembly of FIG.7, including a different and larger fiber management component mounted to the tray. FIG.17 is a planar view of the tray and fiber management component of FIG.16. FIG.18 is an enlarged view of the called-out portion I in FIG.17. FIG.19 is a cross-section taken along the line G-G in FIG.15. FIG.20 is a cross-section taken along the line H-H in FIG.18. FIG.21 is a planar view of the tray of FIG.12 without the fiber management component mounted to the tray. FIG.22 is an enlarged view of the called-out portion J of FIG.21. FIG.23 is an enlarged view of a portion of one of the trays of the assembly of FIG. 7. FIG.24 is an enlarged view of a further portion of one of the trays of the assembly of FIG.7. Detailed Description Various embodiments of the present invention will be described in detail with reference to the drawings, wherein like reference numerals represent like parts and assemblies throughout the several views. Reference to various embodiments does not limit the scope of the invention, which is limited only by the scope of the claims attached hereto. Additionally, any examples set forth in this specification are not intended to be limiting and merely set forth some of the many possible embodiments for the claimed invention. Referring to FIGS.1 and 2, a telecommunications closure 10 extends along a longitudinal axis 12 between a proximal end 14 and a distal end 16. The closure 10 extends along a transverse axis 18 between a first side 20 and a second side 22. The closure 10 extends along a vertical axis 24 between a top 26 and a bottom 28. The axes 12, 18 and 24 are mutually perpendicular, with the axes 12 and 18 defining a horizontal plane. As used herein, terms such as proximal, distal, top, bottom, upper, lower, vertical, horizontal and so forth will be used with reference to the axes 12, 18, and 24 of FIG.1 and in relating the positions of one component to another with respect to the full closure assembly of FIG.1. These relative terms are for ease of description only, and do not limit how the closure 10 or any individual component or combination of components, may be oriented in practice. The closure 10 includes a first upper housing piece 30 and a second lower housing piece 32 that cooperate (e.g., with hinges, clamps, etc.) to form a sealable and re-enterable closure volume 40. A perimeter seal element 31 forms a seal about three sides of the closure volume 40 when the closure 10 is in sealed and closed configuration. The closure volume 40 is configured to house a fiber management organizer 34. Cables enter the closure volume 40 via the opening 36 and sealed cable ports defined by the internal portion of the cable organizer 34. The cable organizer 34 is configured to accommodate relatively thick cables (such as feeder cables and branch cables) entering the closure 10 via a lower region 38 of the cable organizer 34, and relatively thin cables (such as drop cables) entering the closure via an upper region 42 of the cable organizer 34. Referring now to FIGS.3-4, a portion 100 of a fiber management organizer (or organizer) in accordance with the present disclosure will be described. The organizer 100 can cooperate with housing pieces of a closure such as the closure 10 described above. For example, the organizer 100 can cooperate with the housing pieces 30, 32 as described above with respect to FIGS.1 and 2. The organizer 100 can be positioned in the closure volume 40 (FIGS.1-2). The organizer 100 includes a tray support structure 120. To the tray support structure are pivotally mounted fiber management trays 122. The fiber management trays 122 have features for managing optical fibers, such as fiber routing features, and structures for retaining fiber management components, such as splitters, wave division multiplexers, protective splice bodies, etc. When mounted to the tray support structure 120 as shown, the trays 122 form a stack 124 of the trays 122, with one tray atop another in the stack 124 along a stacking axis 126 (FIG.8). In the configuration shown in FIG.3 with all of the trays 122 in the storage configuration, e.g., when the organizer 100 is housed in a sealed closure, the stacking axis 126 is oblique to a vertical axis 118 defined by the support structure 120. To manage fibers on the trays 122, the organizer 100 can be (but need not be) removed or partially removed from the closure. At this point, the trays 122 can be pivoted in the direction 128 about their hinge arrangements 130 with the tray support structure 120 to provide access to the fiber management surfaces of trays in the stack 124 below the pivoted tray(s). The hinge arrangements 130 include locking features (such as squared hinge pins 189) configured to lock each tray in one or more pivoted open positions relative to other trays unless sufficient force is applied to disengage the locking interface. Along the stacking axis 126, each tray 122 has a maximum stacking dimension D1 (FIG.13). The stack 124 has a maximum stacking dimension D5 (FIG.1) equal to D1 multiplied by the number of trays 122 in the stack 124. Similarly, a stack of two of the trays 122 has a maximum stacking dimension D2 equal to D1 multiplied by two (FIG.8). Measured at a different location on a tray 122, each tray’s stacking dimension is also represented by D3 (FIG.19). Although the dimension D3 is offset from the dimension D1 relative to the stacking axis 126, the trays 122 are designed such that D1 is no larger than D3. In some examples, D1 and D3 are equal. In other examples D1 is less than D3. These features will be described in greater detail below. Because the dimension D1 is less than or equal to D3, the dimension D2 is less than or equal to the stacking dimension D4 taken at a different location on the stack 124 (FIGS.8-9) corresponding to the dimension D3 multiplied by the number of trays in the stack. In some examples, D1 is in a range from about 3 millimeters to about 5 millimeters. In some examples, D1 is about 4 millimeters. As mentioned above, D1 is less than or equal to D3. Referring to FIGS.5-24, each tray 122 includes a fiber management surface 132. Outer wall 134 projects away from the fiber management surface 132 parallel to the stacking axis 126. Fibers from optical cables entering the telecommunications closure are routed to the tray support structure 120 and then onto a tray 122 via fiber entry ways 123 and 125 adjacent the hinge arrangement. The tray 122 defines a fiber routing area 136 on the fiber management surface 132 and a fiber work area 138 on the fiber management surface 132. The fiber routing area 136 includes a spool structure 140 and retaining tabs 142 that, together with the wall 134 and the fiber management surface 132 define channels for routing fibers to different parts of the tray and storing loops of fibers. The fiber work area 138 includes a block 144 defining splice body holders 146. The splice body holders include tabs 148 with catches 150 to secure splice bodies that protect splices between optical fibers. In some examples, the block 144 is not an integral part of the tray 122 and is a separate part that is mounted to the fiber management surface 132. The fiber work area 138 also includes a component retainer arrangement 152. The component retainer arrangement 152 is configured to securely retain a fiber management component, such as a splitter module, a wave division multiplexer module, a protective splice body (e.g., a single splice body that protects multiple splices), etc. The component retainer arrangement 152 is configured to adjust to different sizes of such components. For example, the arrangement 152 includes features that adjust to retain splitter modules of different sizes. The arrangement 152 can be unitarily formed with the rest of the tray 122 in a seamless construction. For example, the tray 122, including all the features of the arrangement 152 can be molded in a single mold of polymeric material. The arrangement 152 includes a component support surface 154 that is parallel to the fiber management surface 132. The support surface 154 is recessed relative to the fiber management surface 132. The amount of the recess can be, e.g., in a range from about 0.1 to 1.0 millimeters or outside of this range. Slide stop surfaces 160 and 162 are perpendicular to the component support surface 154 and positioned at opposite longitudinal ends of the component. The slide stop surfaces 160 and 162 partially define the recess and are configured to stop motion of a fiber management component positioned on the component support surface 154 from moving in either direction represented by the arrows 164 and 166 beyond the surfaces 160, 162. That is, the slide stop surfaces can lock the fiber management component in place, or within a predefined tolerance, in the arrangement 152 parallel to the axis 163, which is perpendicular to the stacking axis and parallel to the fiber management surface 132. The arrangement 152 includes a component retaining wall 168 projecting away from, and perpendicular to, the fiber management surface 132. The retaining wall 168 is configured to stop motion of the fiber management component positioned on the component support surface 154 from moving in the direction represented by the arrow 170 beyond the wall 168. The retaining wall 168 includes shoulders 173, 175 at opposite sides of the wall 168 and a ramp 176 positioned between the shoulders 173, 175. The shoulders 173,175 are recessed relative to the ramp 176. The ramp 176 and the shoulders 173, 175 are features configured to facilitate nesting of trays when stacked along the stacking axis that ensure that the dimension D1 is less than or equal to the dimension D3. The arrangement 152 includes a material void 156 defining an opening in the tray 122 adjacent the component support surface 154. The material void 156 extends into notches or cutouts 158 defined by the component support surface 154. A reinforcement structure 178 projects from the outer wall 134 and provides structural support and integrity to the tray 122 at the location of the material void 156. A label 400 can be removably mounted at an external side of the wall 134. The arrangement 152 also includes retaining arms 180 and 182. A fixed end 184 of the retaining arm 180 is attached to a retaining arm support wall 186 extending from outer wall 134. The retaining arm 180, even in a relaxed (e.g., unflexed) configuration extends in a curved manner from the fixed end 184 to a free end 188. A fixed end 190 of the retaining arm 182 is attached to a retaining arm support wall 192 extending from the outer wall 134. The retaining arm 182, even in a relaxed (e.g., unflexed) configuration extends in a curved manner from the fixed end 190 to a free end 194. Each resilient arm 180, 182 can be resiliently flexed about its fixed end 184, 190 parallel to the fiber management surface 132 and about a pivot axis extending perpendicularly into the plane of the page in FIG.22. For example, the arms 180, 182 can be flexed in the direction 177, 175 FIG.22). For improved retention of a fiber management component, the retaining arms 180 and 182 are structurally identical and positioned to mirror each other about a plane perpendicular to the fiber management surface and partially defined by the stacking axis 126. In the example shown, there are two retaining arms. In other examples, one retaining arm can be provided, or more than two retaining arms can be provided. The retaining arms 180 and 182 are resiliently flexible relative to the fixed ends 184, 190, respectively. The retaining arms 180, 182 include portions 196, 198 that extend beyond the outer wall 134 parallel to the stacking axis. These portions 196, 198 are configured to nest within the material void 156 of an adjacent tray 122 when the trays are stacked together along the stacking axis, to ensure that the dimension D1 is less than or equal to the dimension D3. Retaining surfaces 200, 202 at the free ends 188, 194 are positioned to abut the fiber management component and stop motion of the fiber management component in the direction of the arrow 204. That is, the retaining surfaces 200, 202 oppose the retaining wall 168 and cooperate to lock the fiber management component in place in the arrangement 152 parallel to the axis 206, which is perpendicular to the axis 163 and perpendicular to the stacking axis. The portions 196, 198 include extension lips 208, 210 at the free ends 188, 194. The extension lips 208, 210 have retaining surfaces 212, 214. The retaining surfaces 212, 214 defined by the lips 208, 210 are parallel to the fiber management surface 132 and oppose the component support surface 154. The retaining surfaces 212, 214 are configured to abut the fiber management component and cooperate with the component support surface 154 to lock the fiber management component in place in the arrangement 152 parallel to the stacking axis. Together, the retaining arms 180, 192, the component support surface 154, the slide stop surfaces 160, 162 and the component retaining wall 168 define a pocket 199 for securely retaining a fiber management component, such as a splitter (e.g., a module containing a splitter). Thus, advantageously, the arrangement 152 is configured to secure a fiber management component in all three spatial dimensions without the need for adhesive, fasteners, or other fastening means to fasten the fiber management component to the tray 122. In some examples, the slide stop surfaces 160 and 162 are configured to secure a longer fiber management component 400 dimensioned to abut both surfaces 160 and 162 simultaneously when the component 400 is seated in the pocket 199. A shorter fiber management component, such as the component 300, is insufficiently long to abut both surfaces 160 and 162 simultaneously when seated in the pocket 199. In some examples, a surface of the retaining wall 168 of the arrangement 152 is recessed to define additional opposing slide stop walls positioned to simultaneously abut opposite longitudinal ends of the component 300 to thereby secure the shorter management component 300 when the component 300 is seated in the pocket 199. That is, the slide stop surfaces 160, 162 or corresponding slide stop surfaces defined by a recess in the wall 168 can lock the fiber management component 400, 300, respectively, in place, or within a predefined tolerance, in the arrangement 152 parallel to the axis 163, which is perpendicular to the stacking axis and parallel to the fiber management surface 132. Because no adhesive or fasteners are required, removal and replacement of fiber management components from the fiber work area 138 of the tray 122 is facilitated. For example, a splitter module secured in the arrangement 152 can be easily swapped for a new splitter module, a different sized splitter module, or a different type of fiber management component altogether. To remove a fiber management component from the arrangement 152, the retaining arms need only be flexed away from the component, allowing the component to be released. Due to the resilient nature of the retaining arms 180, 182, the arrangement 152 is configured to retain and secure fiber management components of different sizes and/or shapes by flexing the retaining arms 180, 182 to different degrees. For example, referring to FIG.15, the arrangement 152 is retaining a splitter module 300 having a width dimension W1 of 4 millimeters. Referring to FIG.18, the arms 180 and 182 have been flexed further, such that the arrangement 152 is retaining a splitter module 400 having a width dimension W2 corresponding to (e.g., parallel to) the width dimension W1. W2 is greater than W1. In some examples, W2 is at least 1.2, at least 1.5, at least 2.0, at least 3.0, or more times the width W1. In this example, W1 is about 4 millimeters and W2 is about 7 millimeters. The splitter modules 300, 400 each include a housing supporting an optical fiber power splitter. Exterior surfaces of the module housing are contacted and held by the arrangement 152 as described above such that the splitter module 300, 400 is retained by the arrangement 152. In some examples, the splitter module 400 can accommodate more fiber outputs than the splitter module 300. For example, the splitter module 300 can receive a single input fiber 302 and split the signals from the fiber 302 into eight output fibers 304 (not all shown), while the splitter module 400 can receive a single input fiber 402 and split the signals from the fiber 402 into 32 output fibers 404 (not all shown). The output fibers 304, 404 can be routed to splices supported in protective splice bodies held in splice body holders on the same tray 122, and/or routed off the tray 122 to other fiber management equipment of the closure and/or to cables entering the closure. Referring to FIGS.19-20, each splitter module 300, 400 has a maximum height dimension H1, H2 that is equal to or about equal to the dimension D3. In some examples, H1, H2, and D3 is each approximately 4 millimeters. Thus, both the splitter modules 300, 400 themselves, and the portions 196, 198 extend beyond the outer wall 134 parallel to the stacking axis. To ensure that the dimension D1 does not exceed the dimension D3, the material void 156 is configured to receive the portions 196, 198 of an adjacent tray 122 in a stack of the trays 122. Depending on the flexed or unflexed positions of the arms 180, 183, in some examples, the notches or cutouts 158 receive the portions 196, 198 of an adjacent tray 122 in a stack of the trays 122. In addition, the ramp 176 and shoulders 173 and 175 of one tray 122 are configured to oppose and cooperate with an opposing ramp 220 of an adjacent tray to prevent contacting of those surfaces when the trays 122 are in the stacked configuration. Were these surfaces to interfere with each other, the dimension D1 could undesirably exceed the dimension D3, and thereby undesirably increase the dimension D2, which could undesirably increase the profile of the stack of the trays along the stacking access. Increasing the dimension D2 to exceed the dimension D4 is generally undesirable due to tight space constraints within telecommunications closures. In addition, increasing the dimension D1 to exceed D3 can be generally undesirable due to the accompanying alternation in the angles by which the different trays 122 hang from the tray support structure 120 (FIG.1). In an example method of using the arrangement 152, the arms 180 and 182 are flexed away (e.g., by hand or with a tool, such as a fiber pick) from the component retaining wall 168. A fiber management component is then positioned on the component support surface 154 and between the slide stop surfaces 160 and 162. The arms 180 and 182 are then released and allowed to resiliently move back towards the retaining wall 168 until the 208 and 210 engage the fiber management component as shown in the figures. In some examples, the arms 180 and 182 can be manipulated one by one. In some examples, the method further includes, after installing the fiber management component, again flexing the arms 180 and 182 away from the component retaining wall. The fiber management component is then removed from the tray 122. A fiber management component of a different size is then positioned on the component support surface 154 and between the slide stop surfaces 160 and 162. The arms 180 and 182 are then released and allowed to resiliently move back towards the retaining wall 168 until the surfaces 208 and 210 engage the fiber management component as shown in the figures. Having described the preferred aspects and embodiments of the present disclosure, modifications and equivalents of the disclosed concepts may readily occur to one skilled in the art. However, it is intended that such modifications and equivalents be included within the scope of the claims which are appended hereto.

Claims

WHAT IS CLAIMED IS: 1. An optical fiber management tray for a telecommunications closure, comprising: a fiber management surface defining a first axis and a second axis that are perpendicular to each other; an outer wall extending away from the fiber management surface, the fiber management surface and the outer wall defining a fiber work area of the tray, the fiber work area including: a retainer arrangement defining a pocket configured to retain a fiber management component, the retainer arrangement including: a component support surface; and a resilient arm extending from a fixed end of the resilient arm to a free end of the resilient arm, the resilient arm being configured to resiliently flex about the fixed end parallel to the fiber management surface, the resilient arm including an extension lip at the free end including a retaining surface, the retaining surface being configured to oppose the component support surface, the retaining surface and the component support surface being configured to engage the fiber management component and minimize movement of the fiber management component along a tray stacking axis, the tray stacking axis being perpendicular to the first axis and the second axis.

2. An optical fiber management tray for a telecommunications closure, comprising: a fiber management surface defining a first axis and a second axis that are perpendicular to each other; an outer wall extending away from the fiber management surface, the fiber management surface and the outer wall defining a fiber work area of the tray, the fiber work area including: a retainer arrangement defining a pocket configured to retain a fiber management component, the retainer arrangement including: a component support surface; and first resilient arm and a second resilient arm, each resilient arm extending from a fixed end of the resilient arm to a free end of the resilient arm, each resilient arm including an extension lip at the free end including a retaining surface, the retaining surface of each resilient arm being configured to oppose the component support surface, the retaining surface and the component support surface of each retaining arm being configured to engage the fiber management component and minimize movement of the fiber management component along a tray stacking axis, the tray stacking axis being perpendicular to the first axis and the second axis.

3. The tray of claim 2, wherein the first resilient arm and the second resilient arm are structurally identical to each other and are positioned to mirror each other about a plane perpendicular to the fiber management surface and partially defined by the stacking axis.

4. The tray of any of claims 1-3, wherein each resilient arm includes an additional retaining surface at the free end of the resilient arm; wherein the retainer arrangement includes a component retaining wall, and wherein the additional retaining surface of each resilient arm and the retaining wall are configured to cooperate to minimize movement of the fiber management component parallel to the first axis.

5. The tray of any of claims 1-4, wherein the component surface is recessed from the fiber management surface.

6. The tray of any of claims 1-5, wherein the retainer arrangement includes slide stop surfaces at opposite ends of the component support surface, the slide stop surfaces being configured to cooperate to minimize movement of the fiber management component parallel to the second axis.

7. The tray of any of claims 1-6, wherein each resilient arm extends from the fixed end to the free end in a curved manner when the arm is not flexed.

8. The tray of any of claims 1-7, wherein the retainer arrangement is configured to retain fiber management components of different sizes by adjusting each resilient arm.

9. The tray of any of claims 1-8, wherein the retainer arrangement is configured to retain and secure the fiber management component without adhesive and without a fastener.

10. The tray of any of claims 1-9, wherein the retainer arrangement defines a material void adjacent the component support surface.

11. The tray of claim 10, wherein the material void defines one or more notches in the component support surface.

12. The tray of any of claims 10-11, wherein the retainer arrangement includes a reinforcement structure extending from the outer wall and adjacent to the material void.

13. The tray of any of claims 10-12, wherein the material void is configured to receive at least a portion of each extension lip of another of the trays when the tray and the another of the trays are stacked one atop the other along the stacking axis.

14. The tray of claim 13, wherein one or more notches in the component support surface defined by the material void are configured to receive the at least a portion of each extension lip of the another of the tray when the tray and the another of the trays are stacked one atop the other along the stacking axis.

15. The tray of any of claims 1-9, wherein the retainer arrangement includes one or more features configured to minimize a maximum dimension of the tray at the retainer arrangement parallel to the stacking axis.

16. The tray of claim 15, wherein the one or more features includes one or more of: a ramp of a component retaining wall of the retainer arrangement; a shoulder of a component retaining wall of the retainer arrangement; and a material void adjacent the component support surface.

17. The tray of any of claims 1-16, further comprising a fiber management component securely retained in the pocket.

18. The tray of claim 17, wherein the fiber management component is a module including an optical power splitter.

19. The tray of any of claims 1-18, wherein the fiber management surface and the outer wall define a fiber routing area including a spool structure for looped optical fibers.

20. The tray of claim 19, wherein the fiber work area includes a block defining holders for holding bodies configured to protect splices between optical fibers.

21. The tray of claim 18, further comprising: a first fiber routed onto the tray and to an input side of the splitter; and a plurality of second fibers extending from an output side of the tray and routed off the tray.

22. The tray of claim 18, wherein a maximum dimension of the module parallel to the stacking axis is equal to a maximum dimension of the tray parallel to the stacking axis and not at the retainer arrangement.

23. A telecommunications closure, comprising: housing pieces configured to cooperate to define a sealable and re-enterable closure volume; and a fiber organizer positioned in the closure volume, including: a tray support structure; and a plurality of the trays of any of claims 1-22 pivotally mounted to the tray support structure in a stack of the trays one atop another along the stacking axes of the trays.

24. The closure of claim 23, further comprising fiber optical cables entering the closure volume.

25. The closure of any of claims 23-24, wherein a first maximum dimension of the stack parallel to the stacking axis at the retainer arrangement of each of the trays is less than or equal to a second maximum dimension of the stack parallel to the stacking axis and not at the retainer arrangement.

26. A method of securing an optical fiber management component on an optical fiber management tray, comprising: flexing one or more resilient arms of a component retainer arrangement of the tray away from a component retaining wall of the arrangement; positioning an optical fiber management component on a component support surface; and releasing the one or more resilient arms such that the one or more resilient arms move towards the retaining wall until an extension lip of each of the one or more resilient arms engages the fiber management component and secures the fiber management component between the extension lip and the component support surface.

27. The method of claim 26, further comprising: subsequent to the releasing, again flexing the one or more arms away from the component retaining wall; and removing the optical fiber management component from the tray.

28. The method of claim 27, further comprising: subsequent to the removing, positioning another fiber management component of a different size on the component support surface; and releasing the one or more resilient arms such that the one or more resilient arms move towards the retaining wall until an extension lip of each of the one or more resilient arms engages the another fiber management component and secures the another fiber management component between the extension lip and the component support surface.

29. The method of any of claims 26-28, wherein the fiber management component includes an optical power splitter.

30. The tray of any of claims 2-3, wherein each resilient arm is configured to resiliently flex about the fixed end parallel to the fiber management surface.