title: All-fiber 10 MHz acousto-optic modulator of a fiber Bragg grating at 1060 nm wavelength.
abstract: Acousto-optic modulation of a 1 cm fiber Bragg grating at 10.9 MHz frequency and 1065 nm wavelength is demonstrated for the first time. A special modulator design is employed to acoustically induce a dynamic radial long period grating which couples power of the fundamental mode to the higher-order modes supported by the Bragg grating. A modulated reflection band with a depth of 16 dB and 320 pm bandwidth has been achieved. The results indicate a higher modulation frequency compared to previous studies using flexural acoustic waves. In addition, the reduction of the grating length and the modulator size points to compact and faster acousto-optic modulators.
authors.forename: Ricardo E
authors.initials: RE
authors.lastname: Silva
authors.forename: Tobias
authors.initials: T
authors.lastname: Tiess
authors.forename: Martin
authors.initials: M
authors.lastname: Becker
authors.forename: Tina
authors.initials: T
authors.lastname: Eschrich
authors.forename: Manfred
authors.initials: M
authors.lastname: Rothhardt
authors.forename: Matthias
authors.initials: M
authors.lastname: Jäger
authors.forename: Alexandre A P
authors.initials: AA
authors.lastname: Pohl
authors.forename: Hartmut
authors.initials: H
authors.lastname: Bartelt