A tunable multi-wavelength Brillouin–erbium fiber laser with fourfold Brillouin frequency spacing
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We have experimentally demonstrated a tunable multi-wavelength Brillouin–erbium fiber laser with over 40 GHz spacing utilizing two cascaded double Brillouin-frequency-spacing cavities. In this laser configuration, two segments of 25 km-long single-mode fibers are used as Brillouin gain medium in each ring cavity, and a segment of 8 m-long erbium-doped fiber with 980 nm pump is employed to amplify Brillouin pump (BP). At BP wavelength of 1550 nm, BP power of 8.3 dBm (6.8 mW) and the maximum 980 nm pump power of 27.78 dBm (600 mW), seven output channels with fourfold Brillouin-frequency spacing, and the tuning range of 15 nm from 1545 to 1560 nm are achieved. The proposed multi-wavelength Brillouin–erbium fiber laser has wide applications, such as in microwave signal generation and optical communications.
KeywordsOptical fiber laser Stimulated Brillouin scattering Tunable Fourfold Brillouin frequency spacing
This work is supported by the Science and Technology Project of Zhejiang Province under Grants 2014C31066 and 2017C31067, and the National Science Foundation of China under Grant 61405051.
- Zhang, P., Wang, T., Jia, Q., et al.: L-band double Brillouin frequency spaced tunable multi-wavelength Brillouin fiber laser. In: International Symposium on Optoelectronic Technology and Application, pp. 929404–929404-4. International Society for Optics and Photonics (2014)Google Scholar