Optically controlled tunable ultra-narrow linewidth fiber laser with Rayleigh backscattering and saturable absorption ring

Li, Yujia; Huang, Ligang; Gao, Lei; Lan, Tianyi; Cao, Yulong; Ikechukwu, Iroegbu Paul; Shi, Leilei; Liu, Yongfeng; Li, Fuhui; Zhu, Tao

doi:10.1364/oe.26.026896

Cited by 28 publications

(11 citation statements)

References 29 publications

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“…The PM-YDF2 together with PM-FBG is used as an ultranarrow bandwidth filter in the experiment to perform the frequency selection operation. According to the coupled-mode theory, the expression for equivalent bandwidth of the dynamic grating is given as follows: [33,34] ∆ν(λ , ∆n) ≈ ∆ncδ…”

Section: Resultsmentioning

confidence: 99%

Single-frequency linearly polarized Q-switched fiber laser based on Nb₂GeTe₄ saturable absorber

et al. 2023

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We report a single-frequency linearly polarized Q-switched fiber laser based on a Nb2GeTe4 saturable absorber (SA). The Nb2GeTe4 SA triggers passive Q-switching of the laser, and an un-pumped Yb-doped fiber together with a 0.08-nm-bandwidth polarization-maintaining fiber Bragg grating act as an ultra-narrow bandwidth filter to realize single-longitudinal-mode (SLM) oscillation. The devices used in the laser are all polarization-maintaining to ensure linearly polarized laser output. Stable SLM linearly polarized Q-switching operation at 1064.6 nm is successfully achieved with a shortest pulse width of 1.36 μs, a linewidth of 28.4 MHz, a repetition rate of 28.3-95.9 kHz, and a polarization extinction ratio of about 30 dB. It is believed that the single-frequency linearly polarized pulsed fiber laser studied in this paper has great application value in gravitational wave detection, beam combining, nonlinear frequency conversion, and other fields.

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Section: Resultsmentioning

confidence: 99%

Single-frequency linearly polarized Q-switched fiber laser based on Nb₂GeTe₄ saturable absorber

et al. 2023

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“…Because the saturation output power of EDFA is nearly 13 dBm, the achieved OSNR of lasing wavelength will be smaller than that mentioned in the above refs. [19,20], due to the stronger background optical noise. In addition, an available bandwidth of 1524.0 to 1573.0 nm can be attained in the presented RB EDF laser based on a commercially Cband EDFA.…”

Section: Wavelength (Nm)mentioning

confidence: 99%

“…The 3-dB Lorentzian linewidth of the designed RB EDF laser are all 2 kHz in the available wavelength range. In the previous works [11,19,20], they only could achieve narrow linewidth output by RB injection method in the C-band range. Besides, the attained output powers were less than −10 dBm.…”

Section: Introductionmentioning

confidence: 99%

“…In 2014, Zhu's group started to employ the optical injection RB effect, EDF based SA and tapered fiber in EDF ring laser schemes for generating a narrower SLM wavelength output [11,19,20]. However, the observed output powers of the presented RB injection EDF lasers were less than −10 dBm.…”

Section: Introductionmentioning

confidence: 99%

“…To control the polarization direction and achieve the largest output power of arbitrarily polarized wavelength, a PC is exploited for achievement. As we know, the optical RB injection could be applied in EDF laser to narrow the linewidth and achieve the SLM oscillation simultaneously [20,21]. We can employ an OC, a length of SMF and an OCP2 to cause the self-injected RB signal to suppress the dense MLM effect in the proposed fiber laser configuration, as presented in Fig.…”

Section: Introductionmentioning

confidence: 99%

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Feedback-Injected Erbium Fiber Laser With Selectable Tunability and Constant Single-Longitudinal-Mode Characteristic

et al. 2020

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In this investigation, a wavelength-selected single-longitudinal-mode (SLM) erbium-doped fiber (EDF) ring laser utilizing C-band EDF based gain medium over a tuning bandwidth of 1524.0 to 1573.0 nm is demonstrated experimentally. A self-injection Rayleigh backscattering (RB) is designed in the EDF ring laser configuration to suppress the multi-longitudinal-mode (MLM) oscillation and narrow the obtained linewidth. Here, the physical output features of the proposed self-injected RB EDF laser are also studied and discussed, such as the optical signal to noise ratio (OSNR), output power, and laser linewidth, respectively. Therefore, the demonstrated EDF laser not only can reach SLM output, but also can produce a flat output spectrum of 1524.0 to 1554.0 nm with 0.2 dB power variation. Moreover, the measured fluctuation of each wavelength can be kept at 0.05 nm based on the presented self-injected RB EDF laser, while the uncertainty issue is also considered.

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Highly stable and wavelength-switchable single-longitudinal-mode Tm3+-doped fiber laser with a specially-designed tri-coupler dual-ring filter

Yang

Yan

Tian

et al. 2023

Optik

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Optically controlled tunable ultra-narrow linewidth fiber laser with Rayleigh backscattering and saturable absorption ring

Cited by 28 publications

References 29 publications

Single-frequency linearly polarized Q-switched fiber laser based on Nb₂GeTe₄ saturable absorber

Single-frequency linearly polarized Q-switched fiber laser based on Nb₂GeTe₄ saturable absorber

Feedback-Injected Erbium Fiber Laser With Selectable Tunability and Constant Single-Longitudinal-Mode Characteristic

Highly stable and wavelength-switchable single-longitudinal-mode Tm3+-doped fiber laser with a specially-designed tri-coupler dual-ring filter

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Optically controlled tunable ultra-narrow linewidth fiber laser with Rayleigh backscattering and saturable absorption ring

Cited by 28 publications

References 29 publications

Single-frequency linearly polarized Q-switched fiber laser based on Nb2GeTe4 saturable absorber

Single-frequency linearly polarized Q-switched fiber laser based on Nb2GeTe4 saturable absorber

Feedback-Injected Erbium Fiber Laser With Selectable Tunability and Constant Single-Longitudinal-Mode Characteristic

Highly stable and wavelength-switchable single-longitudinal-mode Tm3+-doped fiber laser with a specially-designed tri-coupler dual-ring filter

Contact Info

Product

Resources

About

Single-frequency linearly polarized Q-switched fiber laser based on Nb₂GeTe₄ saturable absorber

Single-frequency linearly polarized Q-switched fiber laser based on Nb₂GeTe₄ saturable absorber