Single mode rib optical waveguide modeling techniques

Abstract

Abstracl -In this paper, a single mode rib optical waveguide is modeled using three distinct methods which include the finite difference method (FD), effective index method (El) and two dimensional beam propagation method (2D-BPM). Starting from the fundamental equations of Maxwell's, the functionalities of the said methods in solving the wave equation are discussed. Using a standard rib optical waveguide structure, comparisons between the methods are made in terms of normalized propagation constant values and the obtained results are shown to have a good agreement.

A novel 1 × 2 multimode interference optical wavelength filter based on photodefinable benzocyclobutene (BCB 4024–40) polymer

“…According to our previous simulation [14], to produce a single-mode waveguide using this material structure, the core thickness needs to be about 4 m. Hence, the coating speed of 3000 rpm and 4 m of mask opening are chosen to realize a single-mode square structure.…”

Development and fabrication of an optimized thermo-electro-optic device using a Mach–Zehnder interferometer

“…2(e)). The etching depth of the core layer for the lateral confinement is determined based on numerical simulations in order to obtain single-mode waveguide in this direction [13]. Then, a SiO 2 film (upper cladding) of 2 lm is deposited to cover the core layer ( Fig.…”

Single mode optical waveguides based on photodefinable benzocyclobutene (BCB 4024–40) polymer

“…The process for the fabrication of channel waveguide using BCB 4024 -40 is similar to a thin film multi-chip module process. According to our previous simulation [7], to produce a single-mode waveguide using this material structure, the core thickness needs to be about 4 m. Hence, the coating speed of 3000 rpm and 4 m of mask opening are chosen to realize a single-mode square structure. In order to maintain good adhesion with the substrate layer, AP3000 adhesion promoter was spin coated on the substrates before polymer coating.…”