Fabrication and Characterization of Monolithically Fused Wavelength-Independent 1 × 4 Couplers |
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| Authors: | Samuel Varghese Muhammed Iqbal Suresh Nair V P N Nampoori C P G Vallabhan |
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| Institution: |
a NeST Research & Development Centre, Cochin, India
b International School of Photonics, CUSAT, Cochin, India
c Centre of Excellence in Lasers & Optoelectronic Sciences, CUSAT, Cochin, India |
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| Abstract: | A new method for the fabrication of a monolithic 1 × 4 single-mode fused coupler is described together with details of its performance in terms of coupling ratio, spectral response and polarization sensitivity. The fabricated device exhibits ultra-broadband performance with low polarization dependent loss. The coupling pattern exhibits identical coupling to all interacting fibers, enabling an easy control on fabrication parameters of the device. |
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| Keywords: | monolithic coupler passive optical network polarization dependent loss |
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