Complex Bragg grating writing using direct modulation of the optical fiber with flexural waves

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Journal Article
Applied Physics Letters, 2011, 99 (16)
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A flexural wave is applied to an optical fiber during the process of Bragg grating inscription using the direct writing method through a phase mask. Using this approach, we can dither the writing process to allow complex grating writing. Examples we demonstrate are tunable sampled gratings and phase-shifted gratings. © 2011 American Institute of Physics.
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