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Experimental study demonstrates versatile fabrication of complex optical fiber gratings with uniform phase masks, indicating streamlined production of high-performance photonic filters.
We present experimental results of complex grating structures fabricated with uniform phase masks by the moving fiber-scanning beam approach. Pure apodized gratings with side-mode-suppression levels in excess of 40 dB, self-apodized linearly chirped gratings, and phase shifted gratings with narrow-band transmission peaks have all been realized.
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Loh et al. (1995) studied this question.
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