[20p-PA6-1~15] 3.14 Optical control devices and optical fibers

[20p-PA6-12] Wavelength switchable EDF laser using cascaded long period fiber grating

〇Koken Fukushima¹, Bui Quoc Hung¹, Koki Nakaya¹, Manuel Guterres Soares¹, Atsushi Wada¹, Satoshi Tanaka¹, Fumihiko Ito² (1.N. D. A., 2.Shimane Univ.)

Keywords:fiber optic sensor, long period fiber grating, fiber optic ring laser

Wavelength switchable EDF ring laser have been fabricated by using a cascaded chirp long period fiber grating (C-CLPG) as a wavelength selection element and investigated in terms of its oscillation characteristics. In this configuration, programmable variable optical attenuator (VOA) have been employed to adjust the intra-cavity loss of the laser and realize the wavelength-switching operation. In the experiment, output wavelength stability of ~0.08 nm was demonstrated.