High power and high efficiency single-frequency 1030 nm DFB fiber laser

Tao, Youshan; Zhang, Song; Jiang, Man; Li, Can; Zhang, Pu; Jiang, Zongfu

doi:10.1016/j.optlastec.2021.107519

Cited by 17 publications

(3 citation statements)

References 39 publications

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“…In fact, to the best of our knowledge, DFB, DBR laser diodes, as well as VCSEL, are not commercially available in the blue spectral region coinciding with the strong absorption cross-section of NO 2 gas molecule. [11][12][13][14][15][16][17][18] The approach to ensure single-mode emission from the blue Fabry-Perot laser diode consists of modifying the resonator by extending the normal laser cavity. This is achieved by adding a frequency-selective element, such as a diffraction grating, placed outside the laser diode cavity.…”

Section: Introductionmentioning

confidence: 99%

Littrow configuration tunable external cavity diode laser with narrowband emission at 448 nm

Gasmi,

Aljalal,

Al-Basheer

2024

Semiconductor Lasers and Laser Dynamics XI

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A single-mode external cavity diode laser (ECDL) emitting in the blue spectral region is developed. The ECDL, which uses a low-power Fabry-Perot laser diode, is designed in the Littrow configuration using a reflective holographic grating. The ECDL has a narrowband emission at 448 nm of 0.01 nm that coincides with a strong absorption cross-section of NO 2 gas molecule, tuning ranges of 4.0 nm just above the threshold and 0.2 nm at high injection current. A maximum output power of 60 mW and an efficiency of 80 % with respect to the Fabry-Perot laser diode in free-running condition are achieved. High stability of the laser system over many hours was also achieved with a fluctuation of less than 1 %.

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Section: Introductionmentioning

confidence: 99%

Littrow configuration tunable external cavity diode laser with narrowband emission at 448 nm

Gasmi,

Aljalal,

Al-Basheer

2024

Semiconductor Lasers and Laser Dynamics XI

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“…However, compared with MLM Q-switched fiber lasers, SLM Q-switched fiber lasers with ultra-narrow linewidth and long coherence length are very preferable in the fields of beam combining, nonlinear frequency conversion, and lidar. [5][6][7][8][9] The SLM laser can be achieved by using Fabry-Perot cavity, saturated absorber (SA), and stimulated Brillouin scattering. [10][11][12] Recently, the use of SA combined with FBG to generate SLM laser has been widely studied.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2023

Self Cite

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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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“…The SLM fiber laser can be developed by two short linear cavity structures, including the distributed feedback (DFB) and the distributed Bragg reflector (DBR) [22,23], as well as a ring cavity structure with an ultra-narrow-band filter [10,11,24], such as a compoundring cavity [10,11,25,26], an FBG [27,28], and an unpumped rare-earth-doped fiber-based saturable absorber (SA) [9,24]. Having a simple structure and a stable operation, DFB and DBR are still the main types of fiber lasers on the market [4].…”

Section: Introductionmentioning

confidence: 99%

Eight-Wavelength-Switchable Narrow Linewidth Erbium-Doped Fiber Laser Based on Cascaded Superimposed High-Birefringence Fiber Bragg Grating

Feng

Sun

et al. 2022

Electronics

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A narrow-linewidth eight-wavelength-switchable erbium-doped fiber laser is proposed, and its performance is demonstrated. A cascaded superimposed high-birefringence fiber Bragg grating is used to determine the lasing wavelengths. The combination of a Fabry–Pérot filter and a single-coupler ring is adopted to achieve the single-longitudinal-mode (SLM) oscillation. By introducing the enhanced polarization-hole-burning effect to suppress the gain competition between different wavelength lasers, the stable lasing output is guaranteed. When the pump power is 200 mW, by adjusting the polarization controller to balance the gain and loss in the laser cavity, 24 switchable lasing modes are achieved, including 8 single-wavelength operations and 16 dual-wavelength operations with orthogonal polarization states. For single-wavelength operations, every laser is in the SLM lasing state, with a high stabilized optical spectrum, a linewidth of approximately 1 kHz, an optical signal-to-noise ratio (OSNR) as high as 73 dB, a relative intensity noise of less than -150 dB/Hz, and very good polarization characteristics. For dual-wavelength operations, the lasers also have a stable spectrum and an OSNR as high as 65 dB. The proposed fiber laser has a wide range of applications, including long-haul coherence optical communication, optical fiber sensing, and dense wavelength-division-multiplexing.

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High power and high efficiency single-frequency 1030 nm DFB fiber laser

Cited by 17 publications

References 39 publications

Littrow configuration tunable external cavity diode laser with narrowband emission at 448 nm

Littrow configuration tunable external cavity diode laser with narrowband emission at 448 nm

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

Eight-Wavelength-Switchable Narrow Linewidth Erbium-Doped Fiber Laser Based on Cascaded Superimposed High-Birefringence Fiber Bragg Grating

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High power and high efficiency single-frequency 1030 nm DFB fiber laser

Cited by 17 publications

References 39 publications

Littrow configuration tunable external cavity diode laser with narrowband emission at 448 nm

Littrow configuration tunable external cavity diode laser with narrowband emission at 448 nm

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

Eight-Wavelength-Switchable Narrow Linewidth Erbium-Doped Fiber Laser Based on Cascaded Superimposed High-Birefringence Fiber Bragg Grating

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