All-Fiber Wavelength-Switchable Orbital Angular Momentum (OAM) Laser Assisted by Fiber Bragg Grating and Fabry-Perot Interferometer Directly Inscribed in Erbium-Doped Fiber with Femtosecond Laser

• DOI: 10.1364/cleo_si.2021.sm1f.7
• Publication Date: 2021-08-17T15:43:42Z
• Authors: Feng Cui; Jun Liu; Jue Wang; Chengkun Cai; Wei Li; Cheng Du; Jian Wang
• Keywords: Fiber Bragg Grating; PHOSFOS; Long-period fiber grating

We demonstrate an all-fiber wavelength-switchable orbital angular momentum (OAM) laser assisted by fiber Bragg grating (FBG) and Fabry-Perot interferometer (FPI), which are directly inscribed femtosecond in ring-core erbium-doped fiber.