Erbium-doped fiber dual-ring laser with stable single-longitudinal-mode and 55-nm tuning range

Yeh, Chien Hung; Yang, Zhihui; Huang, Tzu Jung; Chow, Chi‐Wai; Chang, Yu‐Jung; Chen, Mei Jun

doi:10.1016/j.optlastec.2018.03.034

Cited by 16 publications

(5 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[1][2][3][4] Up to now, SLM EDFLs mainly have two kinds of cavity structures: the linear cavity and the ring cavity. [5][6][7] The linear cavity has shorter cavity length, which is not easy to generate mode hopping status and can achieve a long-term stable SLM status. [8][9][10] The ring cavity has longer cavity length, which can produce laser with lower noise and narrower linewidth.…”

Section: Introductionmentioning

confidence: 99%

All polarization maintaining Brillouin erbium-doped fiber laser with narrow linewidth and stable single longitudinal mode

Yang,

Wang,

Shang

et al. 2024

International Academic Conference on Optics and Photonics (IACOP 2023)

View full text Add to dashboard Cite

A single-longitudinal-mode (SLM) narrow-linewidth Brillouin erbium-doped fiber laser (BEFL) is proposed and demonstrated experimentally. The erbium-doped fiber (EDF) is employed to act as both the linear gain and Brillouin gain medium, which makes it easy to excite the stimulated Brillouin scattering (SBS) in the EDF by cooperating with the ring cavity structure. In order to realize stable SLM and narrow-linewidth laser output, the fiber saturable absorber (SA) and the self-injection feedback structure are added to BEFL for the first time, which can suppress the multimode phenomenon effectively and obtain a stable SLM status. The wavelength stability is less than 1.32 pm over 45 minutes and the linewidth is as narrow as 283 Hz.

show abstract

Section: Introductionmentioning

confidence: 99%

All polarization maintaining Brillouin erbium-doped fiber laser with narrow linewidth and stable single longitudinal mode

Yang,

Wang,

Shang

et al. 2024

International Academic Conference on Optics and Photonics (IACOP 2023)

View full text Add to dashboard Cite

show abstract

“…Consequently, SLM EDFLs are widely used in high precision fiber sensing, remote coherent optical communication, highresolution radar imaging and other fields [1], [2], [3], [4]. Up to now, SLM EDFLs mainly have two kinds of cavity structures: the linear cavity [5] and the ring cavity [6], [7]. Due to the short length of the linear cavity, the linear cavity fiber laser is not easy to generate mode hopping state [8], [9], [10], though it can achieve long-term stable SLM operation.…”

Section: Introductionmentioning

confidence: 99%

All Polarization Maintaining Brillouin Erbium-Doped Fiber Laser With Sub-kHz Linewidth Using Saturated Absorber and Self-Injection Feedback

Yang,

Wang,

Shang

et al. 2024

IEEE Photonics J.

View full text Add to dashboard Cite

A narrow-linewidth all-polarization-maintaining (PM) Brillouin erbium-doped fiber laser (BEFL) is proposed and demonstrated experimentally, which employs erbium-doped fiber (EDF) acting as both the linear gain and the Brillouin gain medium. In order to realize a single longitudinal mode (SLM) operation and a narrow linewidth fiber laser output, the saturable absorber (SA) and the optical self-injection feedback structure are employed in the BEFL for the first time. In this experiment, three sets of comparative experiments are conducted to demonstrate the effectiveness of the SA and the self-injection feedback structure. The experimental result shows that the SA structure can eliminate transient multimode phenomena and narrow the linewidth, and the self-injection feedback structure can act as an effective mode filter and a compound-cavity to make the intracavity mode purer. A stable SLM operation of the BEFL is verified by the delayed self-heterodyne system, which thanks to the adding of the SA and the self-injection feedback structure. The BEFL's wavelength stability detected by is less than 0.0045 nm over 14 hours. In addition, an ultra-narrow linewidth of approximately 224 Hz is obtained.

show abstract

“…In 2018, Poozesh et al [16] presented a narrow linewidth laser applying ytterbium-doped fiber at a wavelength of 1079 nm, and the laser linewidth of less than 6 kHz and the output power of 36.5 mW were obtained. In the same year, Yeh et al [17] proposed a SLM erbium-doped fiber laser based on a double-loop structure with an adjustable band-pass filter and a section of unpumped erbium-doped fiber. A SLM output with a tuning range from 1544.48 nm to 1564.19 nm and a linewidth of about 13 kHz were achieved.…”

Section: Introductionmentioning

confidence: 99%

Narrow linewidth fiber laser with multiple unpumped EDF fiber loops and self-injection feedback

Li,

Yang,

Sui

et al. 2023

Laser Phys. Lett.

View full text Add to dashboard Cite

In this paper, we proposed a narrow linewidth single-longitudinal-mode (SLM) fiber laser, which was realized by employing a triple-cascaded unpumped erbium doped fiber (EDF) Sagnac loops structure with Rayleigh backscattering (RBS) feedback. Narrow linewidth SLM laser output can be achieved by using the unpumped EDF loops. However, it is generally difficult to achieve laser emission with a linewidth below 1 kHz and a power of tens of milliwatts. In this paper, we propose a fiber laser with multiple unpumped Er-doped fiber loops and self-injection feedback. The cascade of multi-unpumped Er-doped fiber rings is employed to reduce the linewidth of the laser, while the self-injection feedback based on RBS is used to improve the stability of the laser and further compress the laser linewidth. By only utilizing three unpumped Er-doped fiber rings cascaded, we obtain an output beam with a linewidth of 723.05 Hz and laser power of 21.52 mW with 0.30 dB fluctuation during a period time of 30 min at the pump power of 170.6 mW. After introducing the feedback mechanism based on RBS into the fiber laser, an output laser with a linewidth of 530.11 Hz and a laser power of 8.57 mW with 0.23 dB fluctuation in 30 min can be obtained at the pump power of 268.68 mW. Compared with the fiber laser with one unpumped Er-doped fiber ring, the linewidth is reduced more than two times.

show abstract

Erbium-doped fiber dual-ring laser with stable single-longitudinal-mode and 55-nm tuning range

Cited by 16 publications

References 21 publications

All polarization maintaining Brillouin erbium-doped fiber laser with narrow linewidth and stable single longitudinal mode

All polarization maintaining Brillouin erbium-doped fiber laser with narrow linewidth and stable single longitudinal mode

All Polarization Maintaining Brillouin Erbium-Doped Fiber Laser With Sub-kHz Linewidth Using Saturated Absorber and Self-Injection Feedback

Narrow linewidth fiber laser with multiple unpumped EDF fiber loops and self-injection feedback

Contact Info

Product

Resources

About