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A GaN/sapphire 1 × 4 Optical Power Splitter Using Five Rectangular Waveguide for Underwater Application

Abstract : This work reports a design of a simple four-branch optical power splitter using five parallel rectangular waveguides in GaN/sapphire for underwater application. The proposed power splitter works according to coupled mode phenomena occurred between the adjacent waveguides. The numerical experiments were carried out using the FD-BPM method to obtain a four uniform optical power output. The simulation conducted at the input wavelength of 0.45 μm for TE polarisation. The result shows that at propagation length of 770 μm, the optical power is successfully split into four output beams with an excess loss of 0.41 dB and imbalance of 0.1 dB.
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https://hal-uphf.archives-ouvertes.fr/hal-03780880
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Submitted on : Monday, September 19, 2022 - 6:12:44 PM
Last modification on : Tuesday, September 20, 2022 - 3:37:03 AM

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Retno Wigajatri Purnamaningsih, Maratul Hamidah, Dini Fithriaty, M. Raditya Gumelar, Nyi Raden Poespawati, et al.. A GaN/sapphire 1 × 4 Optical Power Splitter Using Five Rectangular Waveguide for Underwater Application. 2018 IEEE 5th International Conference on Engineering Technologies and Applied Sciences (ICETAS), Nov 2018, Bangkok, Thailand. pp.149-153, ⟨10.1109/ICETAS.2018.8629190⟩. ⟨hal-03780880⟩

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