| 摘要 |
PCT No. PCT/GB91/01184 Sec. 371 Date Mar. 12, 1993 Sec. 102(e) Date Mar. 12, 1993 PCT Filed Jul. 17, 1991 PCT Pub. No. WO92/01961 PCT Pub. Date Feb. 6, 1992.An optical tap comprises a transparent acrylic block (1) having a single V-shaped recess (2) into which an optical fibre (3) is urged by a member (4). The resulting kink in the fibre (3) enables light to couple between the core of the fibre and the block (1) from what is substantially a point source defined by a tight curve of short arcuate length at the kink. |
