公开(公告)号：WO2018035438A1

公开(公告)日：2018-02-22

申请号：PCT/US2017/047569

申请日：2017-08-18

Applicant: APPLIED OPTOELECTRONICS, INC.

Inventor： LIN, Kai-Sheng, ,  CAI, Ziliang ,  CHEN, Stella Liang,

IPC: G02B6/12 ,  G02B6/42 ,  G02B6/293

CPC classification number: G02B6/421 ,  G02B6/12019 ,  G02B6/29329 ,  G02B6/2938 ,  G02B6/4215 ,  G02B6/4246 ,  G02B6/4261 ,  G02B6/4281 ,  G02B6/4292

Abstract: Techniques for reducing optical fiber bending loss in an optical transceiver are disclosed. In an embodiment, a small form-factor (SFF) optical transceiver housing includes a demultiplexer device, such as an arrayed waveguide grating (AWG) device, having a longitudinal center line that is offset laterally by a distance Doffset from the longitudinal center line of the SFF optical transceiver housing. The lateral offset distance Doffset may advantageously enable an intermediate optical fiber coupling the demultiplexer with an optical coupling receptacle, such as an LC connector, to be routed within the SFF optical transceiver housing in a manner that avoids introducing bends that are less than a minimum bending radius associated with the intermediate optical fiber cable. Thus some embodiments of the present disclosure enable greater tolerance when routing an intermediate optical fiber within housings that would otherwise introduce bending loss by virtue of their constrained dimensions.

Abstract translation: 公开了用于减少光收发器中的光纤弯曲损耗的技术。 在一个实施例中，小形状因数（SFF）光学收发器外壳包括解复用器装置，诸如阵列波导光栅（AWG）装置，其具有纵向中心线，该纵向中心线横向偏离距离纵向中心线 SFF光收发器外壳。 横向偏移距离Doffset可以有利地使得将解复用器与诸如LC连接器的光耦合插座耦合的中间光纤能够以避免引入小于最小弯曲的弯曲的方式布线在SFF光收发器外壳内 与中间光缆相关联的半径。 因此，本公开的一些实施例在将壳体内的中间光纤布线时能够产生更大的容差，否则由于其约束尺寸会引起弯曲损耗。