title: Electromagnetically induced-transparency-like spectrum in an add/drop interferometer.
abstract: We propose a single-ring-resonator-based add/drop interferometer and theoretically investigate the transmission characteristics. Due to coherent interference of two resonant pathways, an electromagnetically induced-transparency (EIT)-like spectrum is produced and the line shapes of the transmission spectra are tunable by controlling the coupling coefficients between the waveguide and ring resonator. We observe the EIT-like behavior in a fiber system which agrees well with the theoretical analysis. The proposed configuration has potential applications in tunable delay lines.
authors.forename: Kaiyang
authors.initials: K
authors.lastname: Wang
authors.forename: Changqiu
authors.initials: C
authors.lastname: Yu
authors.forename: Xuenan
authors.initials: X
authors.lastname: Zhang
authors.forename: Chi
authors.initials: C
authors.lastname: Xu
authors.forename: Yundong
authors.initials: Y
authors.lastname: Zhang
authors.forename: Ping
authors.initials: P
authors.lastname: Yuan