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Multicore fiber distributed feedback lasers
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DOI：10.1364/OL.37.004014.png)
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Abstract
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We demonstrate parallel fabrication of seven fiber distributed feedback (DFB) lasers in a hexagonally arrayed multicore core Er doped fiber with 40 mu m core spacing. DFB grating cavities 8 cm long and operating near 1545 nm were fabricated with a single UV inscription exposure. We observed dual polarization, single longitudinal mode operation with a linewidth below 300 kHz for each laser. (C) 2012 Optical Society of America
Keywords:
CORE FIBER
AMPLIFIER
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