Chinese Optics Letters, Volume. 23, Issue 3, 030603(2025)
Tunable erbium-doped fiber lasers based on modulatable hollow-core anti-resonant fiber filters
Fig. 1. (a) Cross-sectional image of the HC-ARF. (b) Transmission loss diagram of the HC-ARF.
Fig. 2. (a) HC-ARF modulation device. BBS, broadband source; SMF, single-mode fiber; HC-ARF, hollow-core anti-resonant fiber; OSA, optical spectrum analyzer. (b) Schematic diagram of a bent HC-ARF. (c) Transmission spectra of HC-ARFs with different lengths. (d) Corresponding transmission spectra for different bending diameters.
Fig. 3. (a) HC-ARF filter. PC, polarization controller; PMF, polarization-maintaining fiber. (b) Corresponding transmission spectra for different bending diameters. (c) Comb-filtered spectrum subject to PC modulation.
Fig. 4. (a) Erbium-doped ring-shaped all-fiber laser cavity. WDM, wavelength division multiplexer; EDF, erbium-doped fiber. (b) ASE corresponding to different lengths of EDFs. (c) Single-wavelength laser output.
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Weiqian Shi, Yifei Zhao, Ziwei Fang, Yuheng Zhang, Ting Yang, Guiyao Zhou, Changming Xia, "Tunable erbium-doped fiber lasers based on modulatable hollow-core anti-resonant fiber filters," Chin. Opt. Lett. 23, 030603 (2025)
Category: Fiber Optics and Optical Communications
Received: Jul. 20, 2024
Accepted: Sep. 4, 2024
Published Online: Dec. 13, 2024
The Author Email: Changming Xia (xiacmm@126.com)