A switchable dual-wavelength erbium-doped fiber laser based on Sagnac loop inserted with two FBGs

Cao, Ye; Lu, Nan; Tong, Zhengrong

doi:10.1007/s11801-013-3158-4

Cited by 10 publications

(3 citation statements)

References 11 publications

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“…The switchable single or dual wavelength laser output is achieved by adjusting the polarization controller. [15] Yin et al designed a multiwavelength fiber laser based on a dual core fiber M-Z interferometer and a nonlinear fiber loop mirror. In the ring cavity structure, the dual core fiber M-Z interferometer is used as the wavelength selection element.…”

Section: Introductionmentioning

confidence: 99%

Research on switchable and tunable multi-wavelength erbium-doped fiber laser

Chen

Liu

Miao³

et al. 2023

Ninth Symposium on Novel Photoelectronic Detection Technology and Applications

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A multi-wavelength erbium-doped fiber laser with switchable output wavelength and tunable wavelength interval is designed and realized. The ring cavity structure is adopted. There are two independent sub-cavities in the ring cavity. One sub-cavity uses FBG-Sagnac ring filter as the frequency selection element, and the other sub-cavity uses fiber Bragg grating (FBG) as the frequency selection element. The performance of the FBG-Sagnac loop filter is analyzed by transmission matrix method and MATLAB simulation, and a dual-path erbium-doped fiber laser is built. At room temperature, by changing the state of optical attenuator and polarization controller, single, double and three wavelength outputs are obtained. In the mode of outputting a wavelength, the laser can realize free switching among the output wavelength of 1550.0 nm, 1550.8 nm and 1551.6 nm. In the mode of dual wavelength output, the output wavelength interval can be switched between 0.8 nm and 1.6 nm. In the mode of outputting three wavelengths, the wavelength interval of the output laser is 0.8 nm, it can be realized to meet the requirements of wavelength division multiplexing. In the stability test, the experimental results show that the laser has good stability.

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Section: Introductionmentioning

confidence: 99%

Research on switchable and tunable multi-wavelength erbium-doped fiber laser

Chen

Liu

Miao³

et al. 2023

Ninth Symposium on Novel Photoelectronic Detection Technology and Applications

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“…In order to achieve SLM operation for EDFLs, many configurations have been proposed in the past few decades, such as distributed feedback [7,8] , short-cavity distributed Bragg reflector [9] , conventional linear and ring cavities incorporating complicated ultra-narrow-band filters [10][11][12][13] , and compound cavity [14][15][16][17] . Due to the drastic mode competition induced by homogenous gain broadening effect in EDF, stable dual-wavelength SLM oscillation is not easy to achieve.…”

mentioning

confidence: 99%

Single-/dual-wavelength switchable and tunable compound-cavity erbium-doped fiber laser with super-narrow linewidth

Tian

Yan

Liu

2016

Optoelectron. Lett.

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A single-/dual-wavelength switchable and tunable erbium-doped fiber laser (EDFL) with super-narrow linewidth has been proposed and experimentally demonstrated at room temperature. The fiber laser is based on a compound cavity simply composed of a ring main cavity and a two-ring subring cavity (TR-SC). Regardless of single-or dual-wavelength operation, the EDFL could always work well in single-longitudinal-mode (SLM) state at every oscillating wavelength. In dual-wavelength operation, the spacing could be tuned from 0 nm to 4.83 nm. In single-wavelength operation, the EDFL could lase at a fixed wavelength of 1 543.65 nm or another wavelength with a tunable range of 4.83 nm. The super-narrow linewidths of 550 Hz and 600 Hz for two wavelengths are obtained. The proposed EDFL has potential applications in microwave/terahertz-wave generation and high-precision distributed fiber optical sensing.Dual-wavelength single-longitudinal-mode (SLM) erbium-doped fiber lasers (EDFLs) are considered to be excellent sources for applications such as wavelength division multiplexing transmission system, fiber sensing, optical signal processing, LIDAR, and microwave photonic generation [1][2][3][4][5] . The single-/dual-wavelength switchable operation is another crucial target for research of EDFLs [6] .In order to achieve SLM operation for EDFLs, many configurations have been proposed in the past few decades, such as distributed feedback [7,8] , short-cavity distributed Bragg reflector [9] , conventional linear and ring cavities incorporating complicated ultra-narrow-band filters [10][11][12][13] , and compound cavity [14][15][16][17] . Due to the drastic mode competition induced by homogenous gain broadening effect in EDF, stable dual-wavelength SLM oscillation is not easy to achieve. In recent years, many researchers have reported different techniques to demonstrate stable dual-wavelength SLM EDFLs, such as a novel symmetrical fiber Bragg grating (FBG) structure as compact dual-wavelength laser cavity [2] , a reconfigurable dual-pass Mach-Zehnder interferometer (MZI) filter [18] , an unpumped polarization-maintaining EDF saturable absorber filter [19] , two superimposed FBGs and an in-line two-taper MZI filter [20] , a 70 cm long EDF loop attached to a microfiber coupler as wavelength filter [21] , a polarization-maintaining chirped Moiré FBG as ultra-narrow filter [22] , and a special U-bending apparatus based filter [23] . However, all of the techniques cannot achieve continuously tunable wavelength-spacing, switchable single-/dual-wavelength operation and narrow linewidth lasing simultaneously.In this paper, we propose and demonstrate a single-/dualwavelength switchable and tunable SLM EDFL with super-narrow linewidth based on a compound cavity which consists of a ring main cavity and a two-ring subring cavity (TR-SC). The performance of this EDFL is investigated in detail.The configuration of the proposed EDFL is shown in Fig.1. The fiber laser is based on a compound cavity consisting of a main cavity and a TR-SC. In the main ...

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“…J. H. Han et al [9] use two fiber Bragg gratings (FBGs) with different center wavelengths to achieve double-wavelength output, whose wavelength spacing is within 1 nm, but as a result of the wide reflection spectrum of fiber grating, the longitudinal mode of the laser output is relatively dense, which affects the stability of the laser output [10] . D. S. Moon et al [11] put two FBGs into a Sagnac loop, so as to improve the stability of the cascaded grating dual-wavelength laser. X. Liu et al [12] adopt a comb filter composed of two cascaded long period fiber gratings with different lengths to stabilize the laser output.…”

mentioning

confidence: 99%

A switchable dual-wavelength erbium-doped fiber laser based on saturable absorber and active optical fiber ring filter

Zhu

Chen

Zhao

et al. 2014

Optoelectron. Lett.

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A dual-wavelength erbium-doped fiber laser (EDFL) with outstanding stability is presented. In the fiber laser system, two nested active optical fiber ring filters are configured to improve the comb spectrum performance, a saturable absorber is employed to form a gain grating for both filtering and frequency stabilizing, two cascaded fiber Bragg gratings (FBGs) are utilized to achieve dual-wavelength output, and a variable attenuator is arranged to adjust output power. Experimental results illustrate that the peak wavelength drift is less than 3 pm, and a good linear relationship between output power and pump power is realized.

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A switchable dual-wavelength erbium-doped fiber laser based on Sagnac loop inserted with two FBGs

Cited by 10 publications

References 11 publications

Research on switchable and tunable multi-wavelength erbium-doped fiber laser

Research on switchable and tunable multi-wavelength erbium-doped fiber laser

Single-/dual-wavelength switchable and tunable compound-cavity erbium-doped fiber laser with super-narrow linewidth

A switchable dual-wavelength erbium-doped fiber laser based on saturable absorber and active optical fiber ring filter

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