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  • Title: Stable and wavelength-tunable silicon-micro-ring-resonator based erbium-doped fiber laser.
    Author: Yang LG, Yeh CH, Wong CY, Chow CW, Tseng FG, Tsang HK.
    Journal: Opt Express; 2013 Feb 11; 21(3):2869-74. PubMed ID: 23481745.
    Abstract:
    In this work, we propose and demonstrate a stable and wavelength-tunable erbium-doped fiber (EDF) ring laser. Here, a silicon-on-insulator (SOI)-based silicon-micro-ring-resonator (SMRR) is used as the wavelength selective element inside the fiber ring cavity. A uniform period grating coupler (GC) is used to couple between the SMRR and single mode fiber (SMF) and serves also as a polarization dependent element in the cavity. The output lasing wavelength of the proposed fiber laser can be tuned at a tuning step of 2 nm (defined by the free spectral range (FSR) of the SMRR) in a bandwidth of 35.2 nm (1532.00 to 1567.20 nm), which is defined by the gain of the EDF. The optical-signal-to-noise-ratio (OSNR) of each lasing wavelength is larger than 42.0 dB. In addition, the output stabilities of power and wavelength are also discussed.
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