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

Purnamaningsih, Retno Wigajatri; Hamidah, Maratul; Fithriaty, Dini; Gumelar, Muhammad Raditya; Poespawati, Nji Raden; Dogheche, Elhadj

doi:10.1109/icetas.2018.8629190

Cited by 5 publications

(6 citation statements)

References 19 publications

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“…Numerical experiments conducted, using OptiBPM FD-BPM and Matlab, showed that at the wavelength required for maritime application (of λ = 0.45 µm), the documented structure gave an excess loss of 0.46 dB with a power imbalance of 0.51 dB. Although the result was higher than the previous design [28], it is still lower than 1 dB. Since the waveguides were rectangular and symmetrical with an identical refractive index at all the waveguides, the fabrication of this proposed design splitter is easier to produce than the previously described design [23].…”

Section: Discussionmentioning

confidence: 89%

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An Optical Power Divider Based on Mode Coupling Using GaN/Al2O3 for Underwater Communication †

et al. 2019

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This paper details the design of a 1 × 8 optical power divider, using a gallium nitride (GaN) semiconductor on sapphire, which can be applied to underwater optical wireless communication. The design consists of nine parallel rectangular waveguides which are based on mode coupling phenomena. Analysis of the design was performed using the beam propagation method (BPM). The optimization was conducted using the 3D finite difference (FD)-BPM method with an optical signal input at the wavelength required for maritime application of λ = 0.45 µm. The signal was injected into the central waveguide. The results showed that at a propagation length of 1480 µm the optical power is divided into eight output beams with an excess loss of 0.46 dB and imbalance of 0.51 dB. The proposed design can be further developed and applied in future underwater communication technology.

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Section: Discussionmentioning

confidence: 89%

“…Photonic integration for multifunctional devices, based on this material, has been developed [26]. Recently, the design of optical power splitters for underwater communications has also been described [27,28].…”

Section: Introductionmentioning

confidence: 99%

An Optical Power Divider Based on Mode Coupling Using GaN/Al2O3 for Underwater Communication †

et al. 2019

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“…We designed the 1x4 optical power divider based on BPM by running OptiBPM software. The proposed 1x4 optical power divider design is the combination of an optical power divider design using a Y-branch [8] and rectangular waveguides coupling [14]. By performing the 3D isotropic simulation at λ = 1.55 µm, we investigated the proposed design and used the semi-vectorial TE polarized field.…”

Section: Resultsmentioning

confidence: 99%

“…An Optical power divider is a waveguide structure that divides and combines optical signals. In recent years, several optical power divider technologies have recently been proposed, such as those using Y-branch [5][6][7], Y-branch with multimode interference (MMI) structure [8,9], directional coupler [10,11], grating [11], microring [12,13], rectangular waveguides coupling [14,15], and photonic…”

Section: Introductionmentioning

confidence: 99%

Design of a 1x4 Optical Power Divider Based on Y-Branch Using III-Nitride Semiconductor

Franata

Purnamaningsih

2022

Jurnal Ilmiah Teknik Elektro Komputer Dan Informatika

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Optical communications are identified as a technology that is able to meet future demands. As a passive component of optical communication, optical power dividers play an essential role. We propose a novel 1x4 optical power divider design, which is a combination of an optical power divider design using a Y-branch and an optical power divider using rectangular waveguides utilizing mode coupling phenomena from our previous researched designs. The 1x4 optical power divider design using three Y-branches and utilizing mode coupling phenomena is described in this work. The design consists of three sections: an input Y-branch, rectangular waveguides, and two output Ybranches. By utilizing mode coupling phenomena with 3 rectangular waveguides, the optical power was transferred from one waveguide to its adjacent, so we obtained a wider splitting angle at the input Y-branch. The design was optimized using the beam propagation method (BPM) at a wavelength for optical communication of λ = 1.55 µm. We optimized various parameters such as the width and thickness of the waveguide, splitting angles, coupling gaps, and coupling lengths by doing numerous experiments. The result shows that the proposed design was successfully split into four outputs with 0.14 dB power imbalance at four output ports and 0.12 dB excess loss through the design. The excess loss and power imbalance at varied wavelengths were also observed. The distribution of excess loss and power imbalance is almost stable through the C-band range (1530-1565 nm). The proposed design shows the possibility of a new wide-angle optical power divider design and demonstrates the development possibilities of optical interconnections at wavelengths of 1530-1565 nm.

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“…A photonic circuit for visible light communication has also been reported [20]. GaN-based optical power splitter design for underwater optical wireless communication has also been demonstrated [21,22]. However, to the best of our knowledge, the design of an optical power splitter based on GaN/sapphire using AlN/GaN buffer layer based on rectangular waveguide coupling for long wavelength telecommunication links has not yet been reported.…”

Section: Introductionmentioning

confidence: 99%

Design of a Four-Branch Optical Power Splitter Based on Gallium-Nitride Using Rectangular Waveguide Coupling for Telecommunication Links

Purnamaningsih

Poespawati

Dogheche

2019

Journal of Engineering

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This paper reports design of a simple four-branch optical power splitter using five parallel rectangular waveguides coupling in a gallium-nitride (GaN) semiconductor/sapphire for telecommunication links. The optimisation was conducted using the 3D FD-BPM method for long wavelength optical communication. The result shows that, at propagation length of 925 μm, the optical power input was successfully split into four uniform output beams, each with 24% of total input power. It is also shown that the relative output power distribution is almost stable through the C-band range. At the operating wavelength of 1.55 μm, the proposed power splitter has an excess loss lower than 0.2 dB. This study demonstrates the opportunity to develop optical interconnections from UV-Visible to near IR wavelengths.

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

Cited by 5 publications

References 19 publications

An Optical Power Divider Based on Mode Coupling Using GaN/Al2O3 for Underwater Communication †

An Optical Power Divider Based on Mode Coupling Using GaN/Al2O3 for Underwater Communication †

Design of a 1x4 Optical Power Divider Based on Y-Branch Using III-Nitride Semiconductor

Design of a Four-Branch Optical Power Splitter Based on Gallium-Nitride Using Rectangular Waveguide Coupling for Telecommunication Links

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