Title :
Fabrication of a Multimode Interference Device in a Low-Loss Flat-Fiber Platform Using Physical Micromachining Technique
Author :
Ambran, Sumiaty ; Holmes, Christopher ; Gates, James C. ; Webb, Andrew S. ; Carpenter, Lewis G. ; Adikan, Faisal Rafiq Mahamd ; Smith, Peter G R ; Sahu, Jayanta K.
Abstract :
A physical micromachining technique is demonstrated in a low-loss flat-fiber substrate to fabricate a multimode 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 1 ?? 3 MMI device exhibiting 1.89 dB of excess loss has been demonstrated.
Keywords :
micromachining; optical fibre fabrication; optical fibre losses; MMI region; lateral confinement; loss 1.89 dB; low-index-contrast material; low-loss flat-fiber platform; low-loss flat-fiber substrate; multimode interference device fabrication; physical micromachining technique; Fabrication; Indexes; Loss measurement; Materials; Optical fiber devices; Optical fibers; Propagation losses; Air trenches; flat fiber; multimode interference (MMI);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2012.2199465
