  We theoretically and experimentally study the effect of the
coupled-resonator-induced transparency in the Michelson interferometer with the
dual-recycled configuration, which is equivalent to the adjustable coupled
resonator. The coupling strength, corresponding to the splitting of the
reflection spectrum and associated with the width of the
coupled-resonator-induced transparent window,can be controlled by adjusting the
arm lengths, i.e., the relative phase of the interference arms on the 50/50
beam splitter. Thus, this tunability of the coupling strength can be very fast,
and the absorptive and dispersive properties can be effectively controlled.
This work provides a new system to coherently control and storage optical
field.
