Modeling and optimization of 1 × 32 Y-branch splitter for optical transmission systems

Abstract

The goal of this paper is to design a low-loss 1 9 32 Y-branch optical splitter for optical transmission systems, using two different design tools employing Beam Propagation Method. As a first step, a conventional 1 9 32 Y-branch splitter was designed and simulated in two-dimensional environment of OptiBPM photonic tool. The simulated optical properties feature high loss, high asymmetric splitting ratio and a large size of the designed structure, too. In the second step of this work we propose an optimization of the conventional splitter design leading to suppression of the asymmetric splitting ratio to onethird of its initial value and to the improvement of the losses by nearly 2 dB. In addition, 50% size reduction of the designed structure was also achieved. This length-optimized low-loss splitter was then modelled in a three-dimensional environment of RSoft photonic tool and the simulated results confirm the strong improvement of the optical properties.

Manufacturing of Polymer-based 1×2 Y-branch Symmetric and Asymmetric Waveguide Coupler through Moulding Technique

“…If the input power was 100%, then the output power is 50% of the input. The fabricated 1×2 Y-branch asymmetric waveguide coupler in this research may serve as an alternative to those devices developed by Takezawa et al [5], Mizuno et al [6], and Kotzbuecher et al [7]. These devices, as aforementioned, require expensive production equipment and have time-consuming procedural steps.…”

“…The asymmetrical waveguide coupler design is a basis of a tap off ratio (TOFR) to divide light coming from the core bus line [5]. The concept of asymmetric Y-branch splitter that divided the incoming light can be set up in a multimode device [6].…”

“…The application of combining or splitting optical signals in an optical device to complete its designated function is a commonly required feature. Coupler and splitter designs had been reported by [5], [6] and [7]. One type of splitter produced by these designers is the Y-branch splitter, which has great impact in applications like the splitting of propagated light.…”

Optical elements based on silicon photonics

“…Optical power splitters (OPS) play a significant role in optical communication systems [5] and periodic optical sources for integrated microfluidic devices. OPSs are mainly based on either Y-branch splitters [6,7] or multimode interference (MMI) splitters [8]. In this paper, we modelled 1×4 OPS 8 μm long based on coupled-mode theory (CMT) [9] by using seven vertically slotted WGs at 1550 nm TE-polarized light.…”