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Xiaoyi Dong – One of the best experts on this subject based on the ideXlab platform.

  • l band switchable dual Wavelength erbium doped fiber laser based on a multimode fiber bragg grating
    Optics Express, 2004
    Co-Authors: Xinhuan Feng, Shuzhong Yuan, Weigang Zhang, Xiaoyi Dong
    Abstract:

    In this letter, a simple, switchable dual-Wavelength erbium-doped fibefiber laser operating in L-band is successfully proposed and demonstrated. The two Wavelengths are specified by a Bragg grating formed in multimode fiber and the Wavelength separation is 1.7 nm. The multimode section including the multimode fiber grating selects not only the lasing Wavelengths but also the polarization states of the lasing lines. Stable dual-Wavelength operation can be achieved due to the spatial mode beating effect induced by a single-mode/multimode/single-mode fiber combination structure. By simple adjustment of a polarization controller, the proposed laser can operate in stable dual-Wavelength or switch between two Wavelengths, all at room temperature.

  • Novel four-Wavelength erbium-doped fiber laser as multichannel source in WDM system
    Rare-Earth-Doped Materials and Devices V, 2001
    Co-Authors: Lei Ding, Yanjun Xu, Chunliu Zhao, Shuzhong Yuan, Xiaoyi Dong, Chunfeng Ge
    Abstract:

    A novel four-Wavelength all-fiber laser based on fiber Bragg gratings is presented. The four Wavelengths are 1555.8, 1556.6, 1557.4 and 1558.s nm, respectively. Each output laser is 1 mW in power. The suppression ratio between adjacent Wavelengths is > 30 dB. The laser was applied in a Wavelength division multmultiplexing system and the 100 km transmission of 1.2 Gb/s nonreturn-to-zero code, 1.2 Gb/s return-to-zero, 2.5 GHz analogue signal and 5 GHz analogue signal was realized with it.

Liang Chen – One of the best experts on this subject based on the ideXlab platform.

  • simple tunable dual Wavelength fiber laser and multiple self mixing interferometry to large step height measurement
    Optics Express, 2016
    Co-Authors: Lianlian Dong, Yunzhi Wang, Liang Chen
    Abstract:

    A simple tunable dual-Wavelength fiber laser was developed and multiple self-mixing interferometry to large step height measurement was demonstrated. The fiber laser, which can emit two Wavelengths without laser mode competition, is composed of a single fiber ring cavity and two fiber branches. Each branch includes a length of erbium-doped fiber and a fiber Bragg grating. Large step heights can be measured using multiple self-mixing interference of the two Wavelengths. The maximum height that can be measured is half synthetic Wavelength of the two Wavelengths. A step height of 2mm constructed with two gauge blocks has been measured. The standard deviation of measurement results is 2.5nm.

  • development of dual Wavelength fiber ring laser and its application to step height measurement using self mixing interferometry
    Optics Express, 2016
    Co-Authors: Liang Chen, Yunzhi Wang, Lianlian Dong, Keqiang Zhao
    Abstract:

    A dual-Wavelength erbium-doped fiber (EDF) ring laser was developed and its application to step-height measurement using two-Wavelength self-mixing interferometry (SMI) was demonstrated. The fiber laser can emit two different Wavelengths without any laser mode competition. It is composed of two EDF laser cavities and employs fiber Bragg gratings to determine which Wavelengths are emitted. The step heights can be measured using SMI of the two Wavelengths, and the maximum height that can be measured is half the synthetic Wavelength of the two Wavelengths. A step height of 1mm was constructed using two gauge blocks and then measured using the laser. The measurement was repeated ten times, and the standard deviation of the measurements was 2.4nm.

Lei Ding – One of the best experts on this subject based on the ideXlab platform.

  • switchable dual Wavelength erbium doped fiber ring laser using bending dependent loss to switch the operating Wavelength
    Laser Physics Letters, 2006
    Co-Authors: Shengping Che, Lei Ding, S M Wang, Shouhua Zhou
    Abstract:

    A short Wavelength band erbium-doped fiber (EDF) ring laser emitting simultaneously at 1488.9 and 1533.9 nm is demonstrated. The erbium-doped gain fiber has a depressed cladding to suppress emission at longer Wavelengths. The shorter emitting Wavelength is selected by a fiber Bragg grating (FBG), while the longer emitting Wavelength is selected by the strong gain and the reabsorbing effect. Switching between the two operating Wavelengths is realized by simply changing the bending curvature of the EDF loop.

  • switchable dual Wavelength erbium doped fiber ring laser using bending dependent loss to switch the operating Wavelength
    Laser Physics Letters, 2006
    Co-Authors: Shengping Chen, Lei Ding, S M Wang, Yigang Li, Kecheng Lu, Shouhuan Zhou
    Abstract:

    A short Wavelength band erbium-doped fiber (EDF) ring laser emitting simultaneously at 1488.9 and 1533.9 nm is demonstrated. The erbium-doped gain fiber has a depressed cladding to suppress emission at longer Wavelengths. The shorter emitting Wavelength is selected by a fiber Bragg grating (FBG), while the longer emitting Wavelength is selected by the strong gain and the reabsorbing effect. Switching between the two operating Wavelengths is realized by simply changing the bending curvature of the EDF loop.

  • Novel four-Wavelength erbium-doped fiber laser as multichannel source in WDM system
    Rare-Earth-Doped Materials and Devices V, 2001
    Co-Authors: Lei Ding, Yanjun Xu, Chunliu Zhao, Shuzhong Yuan, Xiaoyi Dong, Chunfeng Ge
    Abstract:

    A novel four-Wavelength all-fiber laser based on fiber Bragg gratings is presented. The four Wavelengths are 1555.8, 1556.6, 1557.4 and 1558.s nm, respectively. Each output laser is 1 mW in power. The suppression ratio between adjacent Wavelengths is > 30 dB. The laser was applied in a Wavelength division multiplexing system and the 100 km transmission of 1.2 Gb/s nonreturn-to-zero code, 1.2 Gb/s return-to-zero, 2.5 GHz analogue signal and 5 GHz analogue signal was realized with it.