Tuning of an erbium-doped fiber ring laser based on heating a tapered fiber filter |
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Affiliation: | 1. Universidad Autónoma de Nuevo León, Facultad de Ciencias Físico-Matemáticas, Av. Universidad S/N, Cd. Universitaria, San Nicolás de los Garza, C.P. 66451, Nuevo León, Mexico;2. Centro de Investigaciones en Óptica, A.C. Loma del Bosque 115, C.P. 37150 León, Guanajuato, Mexico;3. Centro de Investigación en Ingeniería y Ciencias Aplicadas, CIICAp, Universidad Autónoma del Estado de Morelos, UAEM, Av. Universidad No. 1001, Col. Chamilpa, C.P. 62209 Cuernavaca, Morelos, Mexico;1. Instituto Balseiro (CNEA – UNCuyo), Avenida Bustillo 9500, (8400) Bariloche, Argentina;2. Centro de Investigaciones Ópticas (CONICET La Plata – CIC), La Plata (1900), Argentina;3. Instituto de Tecnología, Facultad de Ingeniería y Ciencias Exactas, Universidad Argentina de la Empresa, Buenos Aires (C1073AAO), Argentina;1. Dept. of Computer and Communication, Kun Shan University, No. 949, Da-Wan Rd., Yung-Kang Dist., Tainan 710, Taiwan;2. Dept. of Photonics, National Sun Yat-Sen University, No. 70, Lienhai Rd., Kaohsiung 80424, Taiwan;1. Leibniz Institute of Photonic Technology (IPHT), Albert-Einstein-Str. 9, 07745 Jena, Germany;2. Friedrich Schiller University Jena (FSU), Fürstengraben 1, 07743 Jena, Germany;3. Federal University of Technology-Paraná (UTFPR), Av. Sete de Setembro 3165, 80230901 Curitiba, Brazil |
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Abstract: | An erbium-doped fiber ring laser (EDFRL) with wavelength tuning is reported. The laser has a Mach–Zehnder fiber interferometer (MZFI) based on tapers as an intracavity filter, which spectral interference transmission spectrum is modified by external refractive index changes induced by temperature variations in the 25–110 °C range. The MZFI is immersed in a glycerol solution, which refractive index is modified by controlled temperature changes, which allows the tuning of the laser wavelength determined by the interference fringes. Wavelength tuning of 12 nm was measured. This approach is very simple, portable and inexpensive over traditional methods to tune a fiber laser. In addition, the tuning mechanism do not require a solution replacement to operate. |
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Keywords: | Tunable fiber laser Fiber interferometer Tapered fiber |
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