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Q-switched all-fiber laser based on magnetostriction modulation of a Bragg grating
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Q-switched all-fiber laser based on magnetostriction modulation of a Bragg grating
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| Pérez Millán, Pere; Díez Cremades, Antonio; Andrés, Miguel V. Perfil; Zalvidea, D.; Duchowicz, R. | |||
| This document is a artículoDate2005 | |||
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| We report an actively Q-switched all-fiber laser based on magnetostriction modulation of a Bragg grating. The laser employs a pair of Bragg gratings as reflective mirrors, one of which is bonded to a magnetostrictive element. Lengthening of the magnetostrictive element when a magnetic field is applied shifts the Bragg wavelength of the grating, allowing control of the Q-factor of the cavity and, thus, performing active Q-switching. The magnetostrictive modulator is small, compact and requires less than 300 mW electrical drive power. Using erbium-doped fiber and a maximum pump power of 120 mW, Q-switch pulses of more than 1 W peak power were obtained, with a pulse repetition rate that can be continuously varied from 1 Hz to 125 kHz. | |||
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Pérez Millán, Pere Díez Cremades, Antonio Andrés, Miguel V. Zalvidea, D. Duchowicz, R. 2005 Q-switched all-fiber laser based on magnetostriction modulation of a Bragg grating Optics Express 13 13 5046 5051 |
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| https://doi.org/10.1364/OPEX.13.005046 |
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22 - Física [3728]