CN114787677A - 光纤连接器 - Google Patents
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/389—Dismountable connectors, i.e. comprising plugs characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet type
- G02B6/3893—Push-pull type, e.g. snap-in, push-on
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3818—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3847—Details of mounting fibres in ferrules; Assembly methods; Manufacture with means preventing fibre end damage, e.g. recessed fibre surfaces
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
- G02B6/3874—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules
- G02B6/3878—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules comprising a plurality of ferrules, branching and break-out means
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
- G02B6/3882—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using rods, pins or balls to align a pair of ferrule ends
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
- G02B6/3885—Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3818—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type
- G02B6/3821—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type with axial spring biasing or loading means
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Abstract
一种多光纤推入式(MPO)光学连接器,包括支撑插芯主体的壳体。所述插芯主体与第二MPO光学连接器形成光学连接。插芯主体包括连接端部,所述连接端部具有布置成在所述插芯主体与所述第二MPO光学连接器形成所述光学连接时面对所述第二MPO光学连接器的远端端面。所述插芯主体的连接端部限定从所述远端端面向近端延伸到所述插芯主体中的凹部。多个光纤接收在所述插芯主体中。所述光纤的远端端部邻近所述凹部的近端端部设置,并且在所述插芯主体与所述第二MPO光学连接器形成光学连接时与所述第二MPO光学连接器间隔开。所述光纤的远端端部涂覆有抗反射材料。
Description
技术领域
本公开总体上涉及光纤连接器,并且更具体地涉及多光纤推入式(MPO)光学连接器。
背景技术
光学连接器在光通信网络中用于将光缆互连到光学设备或其他光缆。光学连接通常涉及连接在一起以形成光学连接的两个光学连接器。一种类型的光学连接器是多光纤推入式(MPO)光学连接器。MPO光学连接器用于将多根光纤连接在一起。
发明内容
在一方面中,多光纤推入式(MPO)光学连接器包括壳体。插芯主体由壳体支撑。插芯主体构造成与第二MPO光学连接器形成光学连接。插芯主体包括连接端部,该连接端部具有布置成在插芯主体与第二MPO光学连接器形成光学连接时面对第二MPO光学连接器的远端端面。插芯主体的连接端部限定从远端端面向近端延伸到插芯主体中的凹部。多根光纤接收在插芯主体中。光纤的远端端部邻近凹部的近端端部设置,使得当插芯主体与第二MPO光学连接器形成光学连接时,光纤的远端端部与第二MPO光学连接器间隔开。
在另一方面中,多光纤推入式(MPO)光学连接器组件包括第一MPO光学连接器。第一MPO光学连接器具有第一插芯主体,第一插芯主体具有第一端面和从第一端面延伸的两个销。第一MPO光学连接器包括接收在第一插芯主体中的第一组光纤。第二MPO光学连接器具有带有第二端面的第二插芯主体。第二MPO光学连接器包括两个导向通道,该两个导向通道构造为在第一和第二MPO光学连接器耦合在一起时接收两个销。第二MPO光学连接器包括接收在第二插芯主体中的第二组光纤。第一插芯主体或第二插芯主体中的至少一个限定从对应的第一或第二端面向内延伸的凹部,以使得当第一和第二MPO光学连接器耦合在一起以在第一和第二光纤之间形成光学连接时,第一和第二组光纤的面对的端部部分彼此间隔开。
本公开的其他目的和特征将在下文中部分地显而易见并且部分地指出。
附图说明
图1是现有技术公MPO光学连接器的纵向剖视图;
图2是图1的公MPO光学连接器的远端端部的局部放大透视图;
图3是现有技术母MPO光学连接器的纵向剖视图;
图4是根据本公开的一个实施例的公MPO光学连接器的纵向剖视图;
图5是图4的MPO光学连接器的远端端部的局部放大透视图;
图6是其远端端部的局部放大剖视图;
图7是以透视图显示的图4的MPO光学连接器的水平剖视图;
图8是图4的公MPO光学连接器连接到图3的母MPO光学连接器的局部放大剖视图;
图9为根据本公开的另一实施例的母MPO光学连接器的纵向剖视图;
图10是图9的MPO光学连接器连接到图1的公MPO光学连接器的纵向剖视图;
图11是图4和图9的MPO光学连接器连接在一起的截面图;
图12是两个MPO光学连接器的示意图;
图13是用于在MPO光学连接器中形成凹部的研磨机和研磨夹具的透视图;
图14是研磨夹具的透视图;
图15是图14的局部放大图,但MPO光学连接器以纵向剖视图显示;
图16是MPO光学连接器的示意端视图;以及
图17是保持多个MPO连接器的涂覆夹具的透视图。
相应的附图标记在整个附图中表示相应的部分。
具体实施方式
参考图1和2,总体上示出了现有技术的公多光纤推入式(MPO)光学连接器10。公MPO光学连接器10包括支撑插芯主体14的壳体12。插芯主体14位于(例如,限定)公MPO光学连接器10的远端端部。插芯主体14构造成与另一个(例如,第二)MPO光学连接器形成光学连接。插芯主体14具有与第二MPO光学连接器接合以形成光学连接的远端端面16。端面16是大致连续的和平面的。插芯主体14是公插芯主体并且包括两个机械传输销18。销18从端面16向远端延伸。销18与第二(例如,母)MPO光学连接器配合,以与第二MPO光学连接器形成机械传输(MT)连接。公MPO光学连接器10包括一个或多个弹簧20,用于将插芯主体14向远端偏置朝向第二MPO光学连接器并与第二MPO光学连接器接合,以帮助保持两个光学连接器之间的光纤连接。公MPO光学连接器10(例如,插芯主体14)连接到光纤缆线(未示出)。光纤缆线的光纤(未示出)附接到插芯主体14,光纤的端部(例如,远端端部)设置为邻近端面16或在端面16处。光纤的端部接收和/或传输光学信号(例如,光)到第二MPO光学连接器和/或从第二MPO光学连接器。如本文所用,“光纤”可包括拼接在一起的多根光纤或单根连续光纤。
参考图3,总体上示出了一种现有技术的母多光纤推入式(MPO)光学连接器11。母MPO光学连接器11可以连接到公MPO光学连接器10。母MPO光学连接器11与公MPO光学连接器10大致相同,因此,对应或相同的部件具有相同的附图标记。母MPO光学连接器11的插芯主体14包括两个导向通道22,两个导向通道22具有在端面16处的开放端部以用于接收公MPO光学连接器10的销18。
参考图4-8,根据本公开的一个实施例的公多光纤推入式(MPO)光学连接器总体上用附图标记110表示。MPO光学连接器110(例如,第一MPO光学连接器)与第二MPO光学连接器,例如母MPO光学连接器11形成光纤连接(图8)。当耦合在一起时,MPO光学连接器110、11形成光学连接(例如,光纤连接),其使得光学通信网络中的不同部件(例如,缆线、设备等)之间能够通信。MPO光学连接器110附接到具有多根光纤90(例如,一组光纤)的光纤缆线88(图7)的端部,例如带状缆线。在所示实施例中,MPO光学连接器110是构造为与母MPO光学连接器,例如母MPO光学连接器11配合(例如,插入)的公MPO光学连接器。MPO光学连接器110的其他配置也在本公开的范围内。例如,MPO光学连接器110可以是母MPO光学连接器,如下文更详细讨论的那样,构造为与公MPO光学连接器配合(例如,接收)。在另一示例中,代替光学连接或除了光学连接之外,连接器可以完成电连接或其他类型的连接。可以理解,除其他MPO光学连接器之外,MPO光学连接器110可以耦合到其他设备,例如光学适配器。此外,应当理解,本文阐述的教导可以应用于除MPO光学连接器之外的其他类型的光学连接器。
MPO光学连接器110包括支撑插芯主体114的壳体112。插芯主体114位于(例如,限定)MPO光学连接器110的远端端部。插芯主体114构造成与第二MPO光学连接器,例如母MPO光学连接器11形成光学连接。光纤缆线88的多根光纤90(图6)附接到(例如,接收在)插芯主体114。插芯主体包括具有端面(例如,远端端面)116的连接端部124(图6)。端面116布置成当插芯主体与第二MPO光学连接器形成光学连接时面向第二MPO光学连接器(图8)。当第一MPO光学连接器110耦合到第二MPO光学连接器时,端面116接合第二MPO光学连接器11(例如,端面16)以形成光学连接。端面116是大致平面的。插芯主体114是公插芯主体并且包括两个销118(例如,机械传输销)。销118从端面116向远端延伸。销118与第二(例如,母)MPO光学连接器配合,以用于与第二MPO光学连接器形成机械传输(MT)连接。例如,销118被接收在母MPO光学连接器11的通道22中。MPO光学连接器110还可以包括一个或多个弹簧120,用于将插芯主体114向远端偏置朝向第二MPO光学连接器并与第二MPO光学连接器接合,以帮助保持两个光学连接器之间的光纤连接。MPO光学连接器110的其他配置也在本公开的范围内。
插芯主体114的连接端部124限定凹部126。凹部126从端面116向近端或向内延伸到插芯主体114中。凹部126向近端延伸到近端端部130。近端端部是大致平面的。优选地,近端端部130设置成与垂直于每个连接器的纵向轴线的假想线成角度α(图12)。插芯主体114的连接端部124具有中心区域132和相反的侧部区域134。中心区域132由凹部126限定。侧部区域134在(例如,从)中心区域132的远侧突出并限定端面116。侧部区域134定位成接合第二MPO光学连接器的端面(例如,端面16),以将第二MPO光学连接器的端面与插芯主体114的连接端部124的中心区域132间隔开。在该实施例中,凹部126设置在销118之间。销118从侧部区域134向远端突出。
凹部126将光纤90与MPO光学连接器110所形成光学连接的第二MPO光学连接器11间隔开。光纤90的远端端部(例如,面向端部、面向端部部分)设置在凹部126的近端端部130附近,或更优选地位于凹部126的近端端部130处。由于这种布置,当插芯主体114(广义地,MPO光学连接器110)与第二MPO光学连接器11形成光学连接时,光纤90的远端端部与第二MPO光学连接器间隔开。特别地,侧部区域134(例如,端面116)定位成接合第二MPO光学连接器的端面(例如,母MPO光学连接器11的端面16),以将第二MPO光学连接器的端面与插芯主体114的连接端部124的中心区域132间隔开。通过将光纤90的远端端部与第二MPO光学连接器间隔开,消除了当传统MPO光学连接器10、11耦合在一起时存在的光纤的直接纤维到纤维接触。这提供了许多好处和优势。例如,本公开的MPO光学连接器110中的光纤90的远端端部相对于传统的MPO光学连接器10、11更容易清洁。在传统的MPO光学连接器10、11中,连接器之间的连接压实了光纤的端面16和/或远端端部上的任何灰尘和碎屑,这使得难以清洁和去除灰尘和碎屑。此外,通过防止直接纤维到纤维接触,即使不能消除,也会降低由于压缩力而损坏光纤90的风险。此外,由于光学连接不依赖弹簧力来保持直接纤维到纤维接触,因此可以减小弹簧的总力—从而使MPO光纤连接器110更容易耦合在一起。
在将MPO光学连接器110的光纤90的远端端部与第二MPO光学连接器间隔开时,光纤之间的光学连接的质量由于插入损耗和/或反射(例如,反射损耗)而降低。凹部126具有深度D,其构造为减少插入损耗或反射中的至少一个的影响。优选地,凹部126的深度D减少了插入损耗和反射的影响。凹部126的深度D从端面116延伸到凹部的近端端部130(图6)。优选地,凹部126的深度D小于大约20微米,或更优选地,小于大约15微米。在一个实施例中,凹部126的深度D(例如,光纤之间的距离)在大约8微米到大约15微米的闭区间范围内,这对应于在大约0.5dB到大约1.0dB的闭区间范围内的插入损耗。根据工业要求,对接损耗在大约0.5dB到大约-1.0dB的范围内。在一个实施例中,凹部126的深度D约为11微米+/-3微米。为了进一步减少信号损失,MPO光学连接器110优选地包括涂覆光纤90的远端端部或端面的抗反射材料。抗反射材料构造为对应于设置在光纤的远端端部和第二MPO光学连接器之间的间隙介质(未示出)的折射率。具体地,抗反射材料的折射率优选小于间隙介质的折射率。间隙介质可以包括空气、凝胶或水。由于菲涅尔反射,当光经过空气穿过未涂覆的玻璃光纤或从未涂覆的玻璃光纤进入气隙(如本文所述的,例如通过相对的两个光纤连接器对接所形成)时,高达百分之四(4)的光,即光学功率以及因此数据信号可能会丢失。随着光增加,数据吞吐量降低。抗反射涂层用于帮助减少由于反射引起的光或功率损失。
参考图12,总体上示出了根据本公开的耦合的MPO光学连接器的插芯主体的示意图。就本图而言,MPO光学连接器110耦合到母MPO光学连接器11(见图8)。光纤90示意性地显示为具有芯92和围绕芯的包层94。母MPO光学连接器11的端面16和MPO光学连接器110的凹部126的近端端部130与垂直于每个连接器的纵向轴线的假想线成角度α延伸。插入损耗由于凹部126的深度D(例如,光纤90之间的距离)可以使用以下公式计算:
其中IL是插入损耗,D是凹部126的深度(例如,光纤之间的距离),a是光纤90的芯92的半径,在第一界面处,n0是间隙介质的折射率,n1是具有涂层的光纤的芯92的折射率,n2是光纤的包层94的折射率。
反射损耗或回波损耗是被反射回功率源的功率的量,并且与插入损耗相关。链路中的不连续性增加了回波损耗,例如两个光纤连接器之间的互连。凹部126的深度D(例如,光纤之间的距离)产生了不连续性。回波损耗可以用以下公式计算,采用使用光学功率计的Pincident和Preflected的测量值:
参考图9和10,根据本公开的MPO光学连接器的另一实施例总体上用附图标记210表示。MPO光学连接器210总体上类似于MPO光学连接器110,因此,为了便于理解,在使用相似、类似或相同的部件的情况下,采用高了“100”单位的附图标记。因此,除非明确说明或另有指示,上述关于MPO光学连接器110的描述也适用于MPO光学连接器210。
MPO光学连接器210是与公(例如,第二)MPO光学连接器,例如公MPO光学连接器10配合的母MPO光学连接器(图10)。因此,插芯主体214是包括(例如,限定)导向通道222的母插芯主体。导向通道222具有在端面216处的开放端部以用于接收或接受公MPO光学连接器10、110的销18、118。通过接收第二MPO光学连接器10、110的销18、118,在两个连接器之间建立了机械传输连接。在本实施例中,导向通道222设置在侧部区域234中。导向通道222具有在插芯主体214的侧部区域234(例如,端面216)处的通道开口,并且导向通道向近端延伸到插芯主体中。凹部226设置在导向通道222之间。
参考图8、10和11,本公开的MPO光学连接器110、210可以相互连接或连接到传统的MPO光学连接器10、11。例如,本公开的公MPO光学连接器110可以连接到本公开的母MPO光学连接器210(图11)或传统的母MPO光学连接器11(图8)。同样地,本公开的母MPO光学连接器210可以连接到本公开的公MPO光学连接器110(图11)或传统的公MPO光学连接器10(图10)。广泛地,形成光学连接的两个MPO光学连接器10、11、110、210中只需要有一个是本公开的MPO光学连接器110、210之一,以便获得凹部126、226的如上所述的益处。换言之,形成光学连接的MPO光学连接器110、210(例如,插芯主体114、214)中的至少一个包括(例如,限定)凹部126、226。以此方式,当两个MPO光学连接器10、11、110、210耦合在一起时,每组光纤90的面向端部部分(例如,第一MPO光学连接器的第一组光纤和第二MPO光学连接器的第二组光纤)由于连接器中的至少一个具有凹部126、226而彼此间隔开。
参考图13-17,现在将描述一种制造本公开的MPO光学连接器110、210的方法。该方法包括将MPO光学连接器110、210附接到光缆88的端部。该步骤包括将光纤88插入或附接到插芯主体114、214。通常,每根光纤90都插入到插芯主体114、214的纤维通道中,并用环氧树脂固定到位。光纤90附接到插芯主体114、214,使得光纤的远端端部与插芯主体的远端端部相邻、在插芯主体的远端端部处或甚至可以延伸超过插芯主体的远端端部。在MPO光学连接器110、210附接到光缆88之后,MPO光学连接器被放置在研磨机夹具302中,以用于由研磨机300研磨。研磨机300使MPO光学连接器110、210中形成(例如,研磨出)凹部126、226。研磨机300包括形成凹部126、226的研磨轮或盘304。研磨机夹具302可以将MPO光学连接器110、210夹持为与竖直线成一角度(例如大约8度),以便形成凹部126、226的成角度的近端端部130、230(参见图12)。研磨机夹具302可以同时夹持数个MPO光学连接器110、120,并且研磨机300可以包括用于研磨MPO光学连接器的数个研磨盘304。研磨盘304研磨MPO光学连接器110、210以形成凹部126、226(图15)。研磨盘304可以研磨掉插芯主体114、214的和/或光纤90的远端部分的一部分。研磨一直进行到凹部126、226接近或处于预定的或期望的深度D。在凹部126、226形成之后,光纤90的远端端部可以被抛光以在光纤上形成抛光端面。抛光可以设定凹部126、226的最终期望深度D。
参考图16和17,在凹部126、226形成之后,光纤90的远端端部被涂覆抗反射材料96。在图16中,抗反射材料96由阴影区域表示。如图所示,抗反射材料96可以施加在凹部126、226的整个近端端部130、230上。MPO光学连接器110、210可以放置在涂覆夹具306中,以用于为MPO光学连接器涂覆抗反射材料96。涂覆夹具306可以同时夹持数个MPO光学连接器110、210进行涂覆,并包括掩模。如上所述,抗反射材料96有助于将在耦合在一起的MPO光学连接器10、11、110、210之间传输的光信号的插入损耗和反射损耗最小化。在施加了抗反射材料96的涂层之后,MPO光学连接器110、210即可使用。
在不脱离所附权利要求书中限定的发明范围的情况下,对所公开的实施例的修改和变化是可能的。例如,在给出具体尺寸的情况下,应当理解它们仅是示例性的,并且其他尺寸也是可能的。
在介绍本发明的元件或其实施方式时,冠词“一个”、“一个”、“所述”和“所述的”旨在表示存在一个或多个元件。术语“包括”、“包括”和“具有”意在开放性的,并表示可能存在除所列元件之外的其他元件。
由于在不脱离本发明的范围的情况下可以对上述结构、产品和方法进行各种改变,因此上述描述中包含的和附图中所示的所有内容都应解释为说明性而不是限制意义的。
Claims (17)
1.一种多光纤推入式(MPO)光学连接器,包括:
壳体;
插芯主体,由所述壳体支撑,所述插芯主体构造成与第二MPO光学连接器形成光学连接,所述插芯主体包括连接端部,所述连接端部具有布置成在所述插芯主体与所述第二MPO光学连接器形成所述光学连接时面对所述第二MPO光学连接器的远端端面,所述插芯主体的连接端部限定从所述远端端面向近端延伸到所述插芯主体中的凹部;
多个光纤,接收在所述插芯主体中,所述光纤的远端端部邻近所述凹部的近端端部设置,使得当所述插芯主体与所述第二MPO光学连接器形成光学连接时,所述光纤的远端端部与所述第二MPO光学连接器间隔开;并且其中
抗反射材料涂层沉积在所述光纤的远端端部以减少光学损耗。
2.根据权利要求1所述的MPO光学连接器,其中所述插芯主体的所述连接端部具有中心区域和相反的端部区域,所述中心区域由所述凹部限定。
3.根据权利要求2所述的MPO光学连接器,其中所述侧部区域在所述中心区域的远侧突出并限定所述远端端面,所述侧部区域定位成接合所述第二MPO光学连接器的端面,以将所述第二MPO光学连接器的所述端面与所述插芯主体的所述连接端部的所述中心区域间隔开。
4.根据权利要求3所述的MPO光学连接器,其中所述插芯主体还包括通道开口,所述通道开口在所述插芯主体的所述侧部区域处,并向近端延伸到所述插芯主体中。
5.根据权利要求3所述的MPO光学连接器,其中所述插芯主体还包括机械传输销,所述机械传输销从所述侧部区域向远端突出。
6.根据权利要求1所述的MPO光学连接器,其中所述凹部具有从所述远端端面延伸到所述凹部的所述近端端部的深度,所述深度构造为减少插入损耗或反射中的至少一个的影响。
7.根据权利要求1所述的MPO光学连接器,还包括涂覆所述光纤的所述远端端部的所述抗反射材料,所述抗反射材料构造为对应于设置在所述光纤的所述远端端部和所述第二MPO光学连接器之间的间隙介质的折射率。
8.根据权利要求7所述的MPO光学连接器,还包括所述间隙介质,其中所述间隙介质为空气、凝胶或水中之一。
9.根据权利要求8所述的MPO光学连接器,其中所述抗反射材料的折射率小于所述间隙介质的折射率。
10.一种多光纤推入式(MPO)光学连接器组件,包括:
第一MPO光学连接器,具有第一插芯主体,所述第一插芯主体具有第一端面和从所述第一端面延伸的两个销,所述第一MPO光学连接器包括接收在所述第一插芯主体中的第一组光纤;
第二MPO光学连接器,具有第二插芯主体,所述第二插芯主体具有第二端面和两个导向通道,所述两个导向通道构造为在所述第一MPO光学连接器和所述第二MPO光学连接器耦合在一起时接收所述两个销,所述第二MPO光学连接器包括接收在所述第二插芯主体中的第二组光纤;
其中所述第一插芯主体或所述第二插芯主体中的至少一个限定从对应的所述第一端面或第二端面向内延伸的凹部,以使得当所述第一MPO光学连接器和所述第二MPO光学连接器耦合在一起以在所述第一光纤和所述第二光纤之间形成光学连接时,所述第一组光纤和所述第二组光纤的面对的端部部分彼此间隔开;并且进一步地其中
第一抗反射材料涂层沉积在所述光纤的远端端部以减少光学损耗,且第二抗反射材料涂层沉积在所述光纤的远端端部。
11.根据权利要求10所述的MPO光学连接器组件,其中所述第一插芯主体限定从所述第一端面向内延伸的第一凹部,且所述第二插芯主体限定从所述第二端面向内延伸的第二凹部。
12.根据权利要求11所述的MPO光学连接器组件,其中所述第一组光纤的端部设置在与所述第一端面间隔开的所述第一凹部中,所述第二组光纤的端部设置在与所述第二端面间隔开的所述第二凹部中。
13.根据权利要求11所述的MPO光学连接器,其中所述第一凹部设置在所述第一MPO光学连接器的所述两个销之间,且所述第二凹部设置在所述第二MPO光学连接器的所述两个导向通道之间。
14.根据权利要求10所述的MPO光学连接器,其中所述凹部具有选择为减少插入损耗或反射中的至少一个的影响的深度。
15.根据权利要求10所述的MPO光学连接器,其中所述第一MPO光学连接器包括涂覆所述第一组光纤的端部的第一抗反射材料,并且所述第二光纤连接器包括涂覆所述第二组光纤的端部的第二抗反射材料,所述第一抗反射材料和所述第二抗反射材料构造为对应于在所述第一MPO光学连接器和所述第二MPO光学连接器耦合在一起时设置在所述第一组光纤和所述第二组光纤的相邻端部之间的间隙介质的折射率。
16.根据权利要求15所述的MPO光学连接器,还包括所述间隙介质,其中所述间隙介质为空气、凝胶或水中之一。
17.根据权利要求16所述的MPO光学连接器,其中所述第一抗反射材料的折射率小于所述间隙介质的折射率,并且所述第二抗反射材料的折射率小于所述间隙介质的折射率。
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US20210141168A1 (en) | 2021-05-13 |
US11520111B2 (en) | 2022-12-06 |
WO2021097304A1 (en) | 2021-05-20 |
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