| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique for implementing long distance transmission by multimode optical fiber transmission.SOLUTION: The present invention relates to an optical fiber transmission system including: a single optical transmitter 1 for transmitting an optical signal; M (M is an integer of two or more) optical receivers 2 for receiving the optical signal; an optical fiber 3 for propagating the optical signal transmitted by the single optical transmitter 1 and having P (P is an integer of two or more and an integer of M or less) propagation modes; a demultiplexer 4 for separating the optical signal propagated by the optical fiber 3 to the M optical receivers 2; and an FIR filter device 5 for compensating a group delay error by means of an FIR filter comprising a delay element for adjusting delay time and an amplitude/phase adjuster for adjusting amplitude and phase about the optical signal received by each optical receiver 2. |
