| 摘要 |
An optical isolator (100) includes an input port (10), an output port (20), an optical isolating means (30) and a mounting tube (40). The input port includes an optical fiber (13) having an exposed end, a ferrule (12) defining a through hole 121 for holding the optical fiber, a molded lens (11), a sleeve (14) and a metal holder (15). The molded lens collimates optical signals transmitted from the optical fiber. The output port is constructed like the input port. The optical isolating means is disposed in an optical path between the input port and the output port. The optical isolating means transmits optical signals in an input direction and blocks reflected optical signals in the reverse direction. The mounting tube accommodates and fixes the input and output ports and the optical isolating means.
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