| 摘要 |
PCT No. PCT/SE96/00225 Sec. 371 Date Jan. 20, 1998 Sec. 102(e) Date Jan. 20, 1998 PCT Filed Feb. 20, 1996 PCT Pub. No. WO96/26581 PCT Pub. Date Aug. 29, 1996An attenuation-free optical connection which includes a fiber optical signal fiber for transmission of an effective signal. Amplification elements are placed at intervals along the signal fiber for amplification of the effective signal and compensation for the signal fiber intrinsic attenuation. A drive element is common for the amplification elements which include a length of doped fiber which is fed via a feeding fiber by means of a ray distributor and a coupler. The drive element includes a pump station with one or more pump lasers for feeding of one or more signal fibres. Thanks to the passive amplification elements an attenuation-free connection with a minimal noise contribution is obtained. |
