Current Proceedings on Technology

Yazarlar: D. Chack, S. K. Raghuwanshi, V. Kumar, Niteshkumar Agrawal

Konular:-

Anahtar Kelimeler:Beam propagation method,Multimode interference,Taper waveguide,Y-junction waveguide

Özet: In this paper we establish the fundamental concept of guided wave for Y-branch suffering from power loss, and having branching angle large. Guided light suffers loss owing to the tapered and separating structure. Here we propose a relatively new Y-branch structure assisted by MMI coupler. We intentionally kept the branching angle small to be reasonably acceptable power distribution in to Y-branch. We compare the performance of these two structures of their mode conversion effect, self-imaging effect, and field distribution in input output branches. We demonstrate that there is a marginal improvement in the performance of Y-branch assisted by MMI coupler. We have found that the output field was 65.5% for Y-branch branch and 72.6% for Y-branch assisted by MMI coupler. We would like to clarify that we intentionally choose the MMI coupler length long enough compare to ordinary taper section to sustain the self-imaging effect. Here we have optimized the branching separation distance of MMI coupler to overcome the power loss. Our results are exactly matched with the previously published results.

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