Stable single-longitudinal-mode erbium-doped fiber laser with dual-ring structure

Yeh, Chien Hung; Chen, Jhih Yu; Chen, Hone Zhang; Chow, Chi‐Wai

doi:10.1016/j.yofte.2015.12.005

Cited by 9 publications

(3 citation statements)

References 11 publications

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“…In the design of both multi-wavelength and single wavelength fiber lasers operating in single-longitudinal mode and with stable output power, various techniques to address the challenge highlighted above are expounded below and have been implemented [17][18][19][20][21]. For numerous applications that need stable output, single-longitudinal mode, and narrow linewidth, overcoming some of these drawbacks associated with the erbium-doped fiber laser is a necessary requirement.…”

Section: Related Workmentioning

confidence: 99%

Linewidth Narrowing of a Dual Wavelength-Selectable, Ring Cavity Erbium-Doped Fiber Laser Using a Saturable Absorber

et al. 2023

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The narrow linewidth fiber laser is useful in applications such as fiber sensing, optical communications, and spectroscopy. This paper presents an investigation of the model and an experiment of a stable, wavelength-selective, narrow linewidth, ring cavity erbium-doped fiber laser incorporating two fiber Bragg gratings (FBG) at 1530.18 nm and 1550.08 nm, respectively. An F-P tunable filter was used to select a specific wavelength after optimizing the spectral output from the two FBGs to measure their respective linewidths. The erbium-doped ring fiber laser was optimized by adjusting the optical cavity loss using a variable optical coupler at a coupling ratio of 95%. The variable coupler was set to an optimal coupling ratio of 95%, where the spectral output powers of 3.4 mW at 1530.18 nm and 3.1 mW at 1550.08 nm were achieved as the optimal fiber laser output powers. The balanced output power had an optical signal-to-noise ratio of (OSNR) of 61 dB for each wavelength. The linewidth was measured for both wavelengths without saturable absorbers, and 27.7 kHz and 28.3 kHz for 1530.18 nm and 1550.08 nm were obtained. Using the saturable absorber, the linewidths were narrowed to 25.3 KHz and 21.1 kHz for 1530.18 nm and 1550.08 nm, respectively.

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Section: Related Workmentioning

confidence: 99%

Linewidth Narrowing of a Dual Wavelength-Selectable, Ring Cavity Erbium-Doped Fiber Laser Using a Saturable Absorber

et al. 2023

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“…[1][2][3][4] As one of the current research subjects, the erbium-doped fiber laser (EDFL) can exit C-band lasers, and are used in many applications. [5][6] In recent years, some techniques have been reported to realize wavelength switchable and stable EDFL, such as the Mach-Zehnder interferometer (MZI) based on photonic crystal fiber, [7][8] Lyot-Sagnac filter, [9] nonlinear amplifying loop mirror, [10] hollowcore Bragg fiber, [11] tapered fiber filter, [12] few-mode polarization maintaining fiber loop mirror, [13] no-core fiber, [14] dual-ring structure, [15] closed-loop piezoelectric ceramics, [16] chirped fiber grating, [17] birefringence fiber filter, [18] tunable filter, [19] and twin-core fiber. [20] As mentioned above, in the wavelength switchable EDFL, the filter was an important component and it influences laser tuning ability.…”

Section: Introductionmentioning

confidence: 99%

Wavelength switchable and stable single-longitudinal-mode erbium-doped fiber laser based on Mach–Zehnder interferometer and tunable filter

Zhu

Dong

et al. 2018

International Journal of Optomechatronics

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An erbium-doped fiber laser with all-fiber Mach-Zehnder interferometer (MZI) and tunable filter was proposed and experimentally demonstrated. In the designed fiber laser, 6 m C-band erbium-doped fiber was selected as a gain medium; the MZI comprised two waist-enlarged fiber bitapers. In the experiment, the laser threshold was 93 mW, whereas a switchable singlelongitudinal-mode laser was realized within 1519.7-1564.6 nm by adjusting the tunable filter and the line interval was less than 2.5 nm; for singlewavelength laser, the peak power difference of each line was less than 4 dB, and the power fluctuation was less than 0.77 dB within 10-min scan time. A stable and switchable dual-wavelength laser was realized, the wavelength spacing of each dual-wavelength laser was less than 0.7 nm, the side-mode suppression ratio was more than 30.2 dB, and the power shift was less than 0.39 dB. The laser's 3-dB linewidth was less than 0.1 nm.

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“…Furthermore, due to the perturbation factors of temperature, vibration, and fiber length, the observed outputs of the conventional EDF ring lasers could be unstable [6,7]. However, the EDF is a homogeneous broadening gain medium, and mode hopping at room temperature will lead to output instability of the EDF-based laser [8][9][10][11]. Therefore, to complete a stable and selectable EDF laser with SLM, several methods have been proposed and studied, such as using EDFand graphene-based saturation absorbers [12,13], employing multiple-ring architecture [14][15][16], applying an optical injection method [17], using the Mach-Zehnder interferometer technique [18], and applying the inverse-Gaussian apodized fiber Bragg grating [19].…”

Section: Introductionmentioning

confidence: 99%

Using multi-ring structure for suppression of mode competition in stable single-longitudinal-mode erbium fiber laser

Yeh

Huang

Yang

et al. 2017

J. Phys. B: At. Mol. Opt. Phys.

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In this demonstration, a stable and tunable single-longitudinal-mode (SLM) erbium-doped fiber (EDF) laser with multiple-ring configuration is proposed and investigated. The proposed compound-ring structure can create different free spectrum ranges (FSRs) to result in the mode-filter effect based on the Vernier effect for suppressing the other modes. Additionally, the output stabilization of power and wavelength in the proposed EDF multiple-ring laser are also discussed.

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Stable single-longitudinal-mode erbium-doped fiber laser with dual-ring structure

Cited by 9 publications

References 11 publications

Linewidth Narrowing of a Dual Wavelength-Selectable, Ring Cavity Erbium-Doped Fiber Laser Using a Saturable Absorber

Linewidth Narrowing of a Dual Wavelength-Selectable, Ring Cavity Erbium-Doped Fiber Laser Using a Saturable Absorber

Wavelength switchable and stable single-longitudinal-mode erbium-doped fiber laser based on Mach–Zehnder interferometer and tunable filter

Using multi-ring structure for suppression of mode competition in stable single-longitudinal-mode erbium fiber laser

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