scholarly journals Arbitrary Power Splitting Couplers Based on 3x3 Multimode Interference Structures for All-optical Computing

2011 ◽  
Vol 3 (5) ◽  
pp. 565-569 ◽  
Author(s):  
Trung Thanh Le
Keyword(s):  
Optical Computing ◽  
Multimode Interference ◽  
Power Splitting ◽  
Arbitrary Power ◽  
All Optical

Silica-Based 2×2 Multimode Interference Couplers with Arbitrary Power Splitting Ratio

1999 ◽  
Author(s):  
Takashi Saida ◽  
Akira Himeno ◽  
Masayuki Okuno ◽  
Akio Sugita ◽  
Katsunari Okamoto
Keyword(s):  
Multimode Interference ◽  
Power Splitting ◽  
Arbitrary Power ◽  
Splitting Ratio ◽  
Multimode Interference Couplers

Silica-based 2 × 2 multimode interference coupler with arbitrary power splitting ratio

1999 ◽  
Vol 35 (23) ◽  
pp. 2031 ◽  
Author(s):  
T. Saida ◽  
A. Himeno ◽  
M. Okuno ◽  
A. Sugita ◽  
K. Okamoto
Keyword(s):  
Multimode Interference ◽  
Power Splitting ◽  
Arbitrary Power ◽  
Splitting Ratio ◽  
Multimode Interference Coupler

Utilizing multimode interference effects in integrated graded-index optical waveguides for efficient power splitting

2018 ◽  
Vol 37 (4) ◽  
pp. 1556-1563 ◽  
Author(s):  
Jan-Philipp Roth ◽  
Thomas Kühler ◽  
Elmar Griese
Keyword(s):  
Refractive Index ◽  
Ion Exchange ◽  
Refractive Index Profile ◽  
Multimode Interference ◽  
Power Splitting ◽  
Index Profile ◽  
Content Type ◽  
Graded Index ◽  
Waveguide Components ◽  
Efficient Power

Purpose For the realization of optical waveguide components, needed for photonic integrated circuits, multimode-interference based (MMI-based) devices are an excellent component class for the realization of low loss optical splitters. A promising approach to the manufacturing of these components is their embedding in thin glass sheets by ion-exchange diffusion processes, which has not yet been extensively studied. This study aims to significantly enhance the modeling of the diffusion process to support manufacturing of graded-index, MMI-based optical splitters. Design/methodology/approach The methods of design and analysis of MMI-based components are based on a step-index refractive index profile. In this work, fundamental correlations between the properties of the manufacturing ion-exchange process and the characteristics of the graded-index, MMI-based components are established. The refractive index profile is calculated with a proprietary solver based on the finite element method. Any further investigation with respect to parameter influence is based on the beam propagation method, specifically a finite difference based, semi-vectorial, wide-angle beam propagation algorithm. The influence of the parameters of the self-imaging effect is investigated. On this basis, different approaches for efficient power splitting with graded-index, MMI-based waveguide components are evaluated. Findings Easy approximations – mostly linear – can be found to model the dependencies of the investigated parameters. The resulting graded-index splitters are characterized by their low excess and insertion loss. Originality/value These findings are the first step in the direction of the semi-analytical modeling of the respective waveguide components to reduce the numerical effort.

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