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26 August 2015 A tunable wavelength erbium doped fiber ring laser based on mechanically induced long-period fiber gratings
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Abstract
A tunable wavelength erbium doped fiber ring laser, based on mechanically induced long-period fiber gratings (MLPFG) is presented. The laser was tuned applying pressure over the MLPFG, in order to control this, pressure is applied over a plate with periodic grooves that has a short length, this pressure is applied by a digital torque tester, as a result tunable effect is observed. The grooves have a period of 630μm and the maximal pressure without breakpoint fiber is around 0.80lb-in2. Furthermore, the MLPFG used can be erased, reconfigured and exhibit a transmission spectra with thermal stability, similar to high cost photoinduced long period gratings. In this work, by pressure increment distributed over the MLPFG from 0.20 lb-in2 to 0.50 lb-inμ, tuned operation range of 10nm was observed and single line emission was tuned between C and L telecommunications bands. According to the stability analysis the signal to noise ratio and linewidth observed were 35dB and 0.2nm respectively.
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M. Pérez Maciel, Y. López Dieguez, J. A. Montenegro Orenday , D. Jáuregui Vázquez, J. M. Sierra Hernández, E. H. Huerta Masscote, R. Rojas Laguna, and J. M. Estudillo Ayala "A tunable wavelength erbium doped fiber ring laser based on mechanically induced long-period fiber gratings", Proc. SPIE 9586, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications IX, 958618 (26 August 2015); https://doi.org/10.1117/12.2188354
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