We demonstrate a novel single-polarization Er<sup>3+</sup>-doped fiber Fabry–Perot laser. The all-fiber Fabry–Perot cavity is simple inasmuch as it is formed by only two fiber-based components, a fiber loop polarizer and a wavelength-selective fiber loop reflector. The threshold power is 6.5 mW, the slope efficiency is 12.2%, and the extinction ratio is approximately 25 dB.
© 1998 Optical Society of America
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2420) Fiber optics and optical communications : Fibers, polarization-maintaining
(140.3500) Lasers and laser optics : Lasers, erbium
(140.3510) Lasers and laser optics : Lasers, fiber
Katsumi Morishita and Masaaki Itakura, "Linearly Polarized Er3+-Doped Fiber Laser by Use of a Fiber Loop Polarizer and a Wavelength-Selective Fiber Loop Reflector," Appl. Opt. 37, 4797-4800 (1998)