Title:
UNIDIRECTIONAL TAP PD
Document Type and Number:
WIPO Patent Application WO/2019/037362
Kind Code:
A1
Abstract:
A unidirectional TAP PD comprises an inlet optical fiber (20), an optical fiber connector (21), an optical splitting lens (23), a detector assembly (24), and an outlet optical fiber (28). The inlet optical fiber (20) and the outlet optical fiber (28) are disposed in two holes of the fiber connector (21). The optical splitting lens (23) is disposed between the optical fiber connector (21) and the detector assembly (24). One end of the optical splitting lens (23) faces the optical fiber connector (21), and is lapped to an α-degree angle, and another end of the optical splitting lens (23) faces the detector assembly (24) and is partially lapped to a β-degree angle. The α-degree angle and the β-degree angle cause a ray input by the optical inlet fiber (20) to be perpendicular to and exit from a position located on the optical splitting lens (23) and not lapped to the β-degree angle, and cause a ray input by the optical outlet fiber (28) to be totally reflected in the position lapped to the β-degree angle. The two rays are separated by the optical splitting lens (23) before being transmitted to the detector assembly (24), the ray transmitted by the optical inlet fiber (20) is received by the detector assembly (24), and the ray transmitted by the outlet optical fiber (28) is rarely received by the detector assembly (24), thereby achieving high directivity. The optical splitting lens (23) having a lapped angle and used for splitting light has a simple structure, low cost, and high directivity.
Inventors:
WANG MIN (CN)
LUO MAN (CN)
FAN JIEQIAO (CN)
XIAO QINGMING (CN)
LUO MAN (CN)
FAN JIEQIAO (CN)
XIAO QINGMING (CN)
Application Number:
PCT/CN2017/118252
Publication Date:
February 28, 2019
Filing Date:
December 25, 2017
Export Citation:
Assignee:
ACCELINK TECH CO LTD (CN)
International Classes:
G02B6/42
Foreign References:
| CN104092493A | 2014-10-08 | |||
| CN1860393A | 2006-11-08 | |||
| CN204790086U | 2015-11-18 | |||
| US20040156596A1 | 2004-08-12 | |||
| CN101017230A | 2007-08-15 | |||
| CN201100946Y | 2008-08-13 | |||
| CN107390329A | 2017-11-24 |
Attorney, Agent or Firm:
BEIJING TIAN QI ZHI XIN INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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