Analysis of influence of wall defect in lithium niobate ridge waveguide

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Dehghan nayeri Hadi; ASADI REZA; Malek Mohammad Mohammad

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Journal: Iranian Journal of Physics Research Year:2017 | Volume:17 | Issue:1 Page(s): 61-71

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Information Journal Paper

Title

Analysis of influence of wall defect in lithium niobate ridge waveguide

Author(s)

Dehghan nayeri Hadi | ASADI REZA | Malek Mohammad Mohammad | Issue Writer Certificate

Keywords

Lithium niobateQ1

ridge waveguideQ1

defectQ2

titanium diffusionQ1

Abstract

In this research, the capability of new approach of making ridge waveguides in Lithium niobate by Argon physical etching and diffusion of titanium is investigated. For this purpose, the proportion of light mode confinement in the ridge section is measured and compared to simulation results. Also the effect of ridge wall defects-which is a challenge of this kind of waveguides-in light power dissipation, is simulated. The ridge height reaches 2. 5µ m and the defects of ridge walls are measured to be about 200nm on average. In this research, by simulation of titanium diffusion and refractive index change of the waveguide it is demonstrated that although the defects exist in the ridge walls, by using appropriate diffusion depth of titanium and refractive index distribution, light power dissipation less than 3 dB/cm can be reached while mode confinement in the ridge section is more than 50 percent.

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APA: Copy

Dehghan nayeri, Hadi, ASADI, REZA, & Malek Mohammad, Mohammad. (2017). Analysis of influence of wall defect in lithium niobate ridge waveguide. IRANIAN JOURNAL OF PHYSICS RESEARCH, 17(1 ), 61-71. SID. https://sid.ir/paper/1835/en

Vancouver: Copy

Dehghan nayeri Hadi, ASADI REZA, Malek Mohammad Mohammad. Analysis of influence of wall defect in lithium niobate ridge waveguide. IRANIAN JOURNAL OF PHYSICS RESEARCH[Internet]. 2017;17(1 ):61-71. Available from: https://sid.ir/paper/1835/en

IEEE: Copy

Hadi Dehghan nayeri, REZA ASADI, and Mohammad Malek Mohammad, “Analysis of influence of wall defect in lithium niobate ridge waveguide,” IRANIAN JOURNAL OF PHYSICS RESEARCH, vol. 17, no. 1 , pp. 61–71, 2017, [Online]. Available: https://sid.ir/paper/1835/en

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