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收集所有交通大學研究人員與學生個人或團體所發表之各項學術著作，涵蓋期刊論文、教師專書、學位論文等項。;;Collections of Publications of NCTU Researchers and Students Like Journal Papers and Thesis.

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Author: search.filters.author.Lee, CCSubject: search.filters.subject.fiber ring laser

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Now showing 1 - 7 of 7
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    Using optical Fabry-Perot devices for a wavelength-tunable S-band erbium-doped fiber ring laser with single-frequency operation
    (2005-10-01)
    Yeh, CH
    ;
    Chien, HC
    ;
    Cheng, BC
    ;
    Lee, CC
    ;
    Chi, S
    We have proposed and experimentally demonstrated a stabilized and tunable S-band erbium-doped fiber ring laser by using a Fabry-Perot laser diode (FPLD) and a fiber Fabry-Perot filter inside the ring cavity. Due to the bandwidth limitation of the FPLD, the effective operating range of the proposed laser is confined to 1490.28 to 1521.22 nm with a tuning step of 0.08 nm. A side-mode suppression ratio of > 39.1 dB at 0.05 nm and an output power of > 0.4 dBm can be achieved while this laser is tuned from 1490.28 to 1510.27 nm. Zero output wavelength variation and output power fluctuation <= 0.03 dB have also been obtained. (c) 2005 Society of Photo-Optical Instrumentation Engineers.
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    Item type:Item,
    Power equalized wavelength-selective fiber lasers using fiber Bragg gratings
    (1998-10-15)
    Liaw, SK
    ;
    Lee, CC
    ;
    Ho, KP
    ;
    Chi, S
    ;
    光電工程學系
    A fiber Bragg grating (FBG) based multi-wavelength ring laser is experimentally investigated in this paper. The lasing wavelengths can be dynamically selected by using a 1 x N optical switch. Micro-bender between FBGs is used as variable attenuator to equalize the output power for each lasing wavelength. By using passive multi-ring cavities (MRC) method, single- or dual-wavelength laser of equal output power is demonstrated for a signal-to-noise ratio (SNR) of 63 dB and a narrow linewidth of 3 kHz. (C) 1998 Elsevier Science B.V. All rights reserved.
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    Item type:Item,
    A tunable S-band erbium-doped fiber ring laser
    (2003-08-01)
    Yeh, CH
    ;
    Lee, CC
    ;
    Chi, S
    ;
    光電工程學系
    ;
    Department of Photonics
    In this paper, we experimentally investigate and demonstrate an S-band erbium-doped fiber (EDF) ring laser based on an erbium-doped silica fiber and 980-nm pumping laser. Widely tunable range from 1480 to 1522 run, and the sidemode suppression ratio (SMSR) of >30 dB/0.1 nm and the output power of > -2 dBm in the operating range from 1482 nm to 1517 nm have been achieved for this ring laser. Under the constant power control, the output power variation less than +/-0.05 dB can also be accomplished over the tuning range from 1482 to 1517 run. This S-band EDF ring laser is promising for the future S-band applications.
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    A tunable C-plus-L-band fiber ring laser based on hybrid amplifier
    (2004-02-01)
    Yeh, CH
    ;
    Lee, CC
    ;
    Chen, CY
    ;
    Chi, S
    ;
    光電工程學系
    A tunable C-plus-L-band fiber ring laser, based on a semiconductor optical amplifier, which directly connects an erbium-doped fiber amplifier with a 16 m long erbium-doped fiber, has been proposed and experimentally investigated. A side-mode suppression ratio of > 40 dB/0.1 nm and an output power of >3 dBm in the operating range from 1552 to 1610 nm have been achieved for this ring laser.
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    A stabilized and tunable erbium-doped fiber ring laser with double optical filter
    (2004-03-01)
    Yeh, CH
    ;
    Lee, CC
    ;
    Chen, CY
    ;
    Chi, S
    ;
    光電工程學系
    We have proposed and experimentally demonstrated a stabilized and tunable erbium-doped fiber ring laser by using a Fabry-Perot laser and a fiber Fabry-Wrot filter. The sidemode suppression ratio of >30 dB/0.1 nm and the output power of >2.2 dBm can be achieved while this ring laser is tuned from 1528.28 to 1559.64 nm with the step of 1.12 nm. The wavelength variation of less than 0.01 nm and the power fluctuation of less than or equal to0.04 dB have also been obtained. When the constant output power is controlled by adjusting the bias current of 980-nm pump laser, the power variation of less than +/-0.05 dB can be obtained over the entire tunable range.
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    Item type:Item,
    Single-frequency tunable fiber ring laser based on erbium-doped waveguide amplifier and double filters
    (2005-01-01)
    Chien, HC
    ;
    Yeh, CH
    ;
    Lee, CC
    ;
    Chi, S
    ;
    光電工程學系
    We have proposed and experimentally demonstrated a single-longitudinal-mode tunable fiber ring laser based on an erbium-doped waveguide amplifier (EDWA) and two filters composed of a Fabry-Perot laser diode and a fiber Fabry-Perot filter. The side-mode suppression ratio (SMSR) of > 32.6 dB/0.05 nm and the output power of > 1.4 dBm over a wide tuning range from 1525.22 to. 1565.45 nm in steps of 1.11 nm have been achieved for this ring laser. The power fluctuation of < 0.1 dB and central wavelength variation of < 0.01 nm also can be obtained.
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    Item type:Item,
    A tunable and single-frequency S-band erbium fiber laser with saturable-absorber-based autotracking filter
    (2005-06-01)
    Chien, HC
    ;
    Yeh, CH
    ;
    Lee, CC
    ;
    Chi, S
    ;
    光電工程學系
    A method to achieve wavelength tunability and single-longitudinal-mode oscillation in an S-band erbium-doped fiber (EDF) ring laser is proposed and demonstrated. A saturable-absorber-based autotracking filter consisting of an unpumped EDF and an optical reflector is utilized to provide fine mode restriction and guarantee the single-frequency operation. The performance of output power of larger than 1 dBm, power stability of smaller than 0.02 dB, wavelength variation of less than 0.01 nm and side-mode suppression ratio of larger than 31 dB has been experimentally demonstrated for this single-frequency fiber laser operating from 1482 to 1512 nm. (C) 2005 Elsevier B.V. All rights reserved.