A hybrid optical fiber delayer based on stimulated Brillouin scattering (SBS) slow light is proposed for dual-channel systems. It features two rings as delay lines, where one is an active ring with a Brillouin amplifier and the other is a passive ring. It combines SBS slow light delay with linear transmission delay, which extends the delay range in a great amount. A maximum SBS slow light delay of 468 ns and the capability for tunable delay of over 10 ls for pulses of nanoseconds are demonstrated.
Bibliographical noteFunding Information:
This work is supported by the National Natural Science Foundation of China (Grant No. 61138005 and 61008004), Program for Changjiang Scholars and Innovative Research Team in University, RFDP20102302120034, and the Fundamental Research Funds for the Central Universities (Grant No. HIT. KLOF. 2010035).