公开(公告)号：US5237442A

公开(公告)日：1993-08-17

申请号：US882747

申请日：1992-05-11

申请人： Giok D. Khoe ,  Kieran G. Wright

发明人： Giok D. Khoe ,  Kieran G. Wright

IPC分类号： H04B10/148

CPC分类号： H04B10/61 ,  H04B10/614 ,  H04B10/63 ,  H04B10/64

摘要： In an optical heterodyne or homodyne receiver an optical system (140) is used in which the local oscillator beam (L) is combined with the signal beam (S). Simultaneously, these beams are split into orthogonally polarized sub-beams. For this purpose the optical system (140) comprises polarization-sensitive beam-splitting layers (141a and 141b) and neutral beam-splitting layers (142a and 142b) which function as beam-combining elements. In order to align the directions of the exit sub-beams of the signal beam (.sub.11, S.sub.12, S.sub.2, S.sub.22) and the local oscillator beam (L.sub.11, L.sub.12, L.sub.21, L.sub.22), the angles (.alpha., .beta., .gamma., .delta.) enclosed by the beam-splitting faces are chosen to be such that two angles located opposite each other have a combined magnitude of 180.degree.. This is realised by providing the layers (141a, 142b and 141b, 142a) on side faces of one prism (140a, 140b).

摘要翻译： 在光学外差或零差接收机中，使用光学系统（140），其中本地振荡器波束（L）与信号波束（S）组合。 同时，这些光束被分成正交极化的子光束。 为此，光学系统（140）包括用作束组合元件的偏振敏感光束分离层（141a和141b）和中性光束分离层（142a和142b）。 为了使信号光束（11，S12，S2，S22）和本地振荡器光束（L11，L12，L21，L22）的退出子光束的方向对齐，角度（α，β，γ， ）被选择为使得彼此相对定位的两个角度具有180度的组合大小。 这通过在一个棱镜（140a，140b）的侧面上设置层（141a，142b和141b，142a）来实现。

公开(公告)号：US5126557A

公开(公告)日：1992-06-30

申请号：US591905

申请日：1990-10-02

申请人： Giok D. Khoe ,  Kieran G. Wright

发明人： Giok D. Khoe ,  Kieran G. Wright

IPC分类号： G02F2/00 ,  G02B27/28 ,  H04B10/04 ,  H04B10/06 ,  H04B10/142 ,  H04B10/148 ,  H04B10/152

CPC分类号： H04B10/61 ,  G02B27/283 ,  H04B10/614 ,  H04B10/64

摘要： An optical heterodyne or homodyne receiver comprises an integrated optical component (140) in which the local oscillator beam and the signal beam are combined and simultaneouly split into orthogonally polarized sub-beams. The optical component comprises a polarization-sensitive beam-splitting layer in a first face (141) and a second beam-splitting layer in a second face (142) which is perpendicular thereto. This second layer functions as a beam-combining element in the optical receiver and has two distinct portions (142a and 142b), one portion (142a) of which passes and reflects one state of polarization (s) to the desired extent and the other portion (142b) having this property for the other state of polarization (p).

公开(公告)号：US5022733A

公开(公告)日：1991-06-11

申请号：US397057

申请日：1989-08-22

申请人： Johannes H. Angenent ,  Giok D. Khoe ,  Gathal J. Mahon ,  Abram Van De Grijp ,  Cornelis J. T. Potters ,  Kieran G. Wright

发明人： Johannes H. Angenent ,  Giok D. Khoe ,  Gathal J. Mahon ,  Abram Van De Grijp ,  Cornelis J. T. Potters ,  Kieran G. Wright

IPC分类号： G02B6/32

CPC分类号： G02B6/327

摘要： A ball lens connector part having low total reflections as well as a method of manufacturing such a ball lens connector part are described. The total reflections can be limited to less than -60 dB by means of the present ball lens connector part. The ball lens connector part comprises a fiber with an inclined fiber end in a tubular housing which housing further comprises a ball lens. If the ball lens comprises a flat surface, the total reflections can be lower than -80 dB. By subjecting the end of the housing to a machining treatment, the center line of the said end is moved in such a manner that it coincides with the optical axis of the emanating light beam.