Ambran, Sumiaty, Holmes, Christopher, Gates, James C., Webb, Andrew S., Carpenter, Lewis G., Adikan, Faisal Rafiq Mahamd, Smith, Peter G.R. and Sahu, Jayanta K.
Fabrication of a multimode interference device in a low-loss flat-fiber platform using physical micromachining technique
Journal of Lightwave Technology, 30, (17), . (doi:10.1109/JLT.2012.2199465).
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A physical micromachining technique is demonstrated in a low-loss flat-fiber substrate to fabricate a multi-mode interference (MMI) device. The flat-fiber substrate is a low-index-contrast material; however, by making use of two physically micromachined trenches, lateral confinement is achieved providing high index contrast for the MMI region. A 1x3 MMI device exhibiting 1.89 dB of excess loss has been demonstrated.
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