Silicon MZI Sensor Simulation

@sajjadtaghvaeifr

Hi, I hope you are doing fine. I have PhD in mechanical engineering from Tohoku University of Japan. I have published 20 Journal papers and 16 international conference papers. I have a lot of experience in automotive, aerospace, biotechnology, computers, electronics, microelectromechanical systems, energy conversion, robotics and automation, and manufacturing. I am also expert in mechanical engineering softwares including Ansys, Fluent, Comsol, CATIA, Solidworks, Abaqus and Inventor. I'm interested in your project. Please send me a message so that we can discuss more. Best regards. please check my portfolio link: https://www.freelancer.com/u/sajjadtaghvaeifr

@hayteekeys

KINDLY READ THROUGH MY PROPOSAL THIS IS WHAT I WILL DO: MY APPROACH 1. Build MZI in COMSOL Wave Optics Module: Parametric rib waveguide geo (Si core 220nm thick/500nm wide, SiO2 clad), 50/50 Y-junction splitters, arm ΔL=100μm for fringe tuning, n_pert=0.01 RI shift sim via material property 2. Setup: Port excitation (TE mode, 1550nm sweep 1500-1600nm), PML boundaries, swept mesh (finer in core ~50nm), eigenmode/BFD study for neff/phase, parametric sweep for sensitivity (>100π/RIU target) 3. Optimize: Use Optimization Module for arm ΔL to max phase diff/min loss (<0.5dB), script sweeps in Java API for automation (e.g., mphnavigator for plots) 4. Validate: Transmission fringes, phase vs. pert plots; assume SOI fab stack (725nm BOX) DELIVERABLES - COMSOL .mph file (v6.2, parametric, ready-run) w/geometry/study/post-proc - PDF report (8pg): assump (e.g., lossless bends), BCs (PML/PEC), replicate guide (e.g., "Plot: 2D Transmission vs λ") - Fab note: 1pg on SOI (IMEC/MPW), etch dims, e-beam litho for prototypes RELEVANT EXPERIENCE - Simulated Si MZI sensors in COMSOL for biosensing (2024, phase sens 200π/RIU, client: EU photonics lab, pub in Opt. Express) - Optimized waveguide MZIs w/Java API sweeps for telecom (2023, loss <0.2dB, 10+ models delivered) QUESTIONS (for high-res design) - Wavelength range/target RIU? Arm bend radius prefs? - COMSOL version (6.2 ok)? - Timeline—1 weeks to files?

@Bhartifreelancer

As an experienced engineer with a keen interest in silicon photonics, I am confident that I am the perfect fit for your Silicon MZI Sensor Simulation project. Throughout my career, I have honed my skills in COMSOL Multiphysics modeling and simulation, specifically in waveguides, material assignments, and optimizing designs for maximum precision. Moreover, I am well-versed in scripting in the COMSOL Java API and utilizing built-in optimization modules to ensure efficient parameter sweeps. My proficiency extends beyond the technical aspects of this project. A core component of my work style is understanding clients' requirements and translating them into actionable solutions—a skill I believe is crucial for your project. Furthermore, I take pride in my ability to document complex workflows precisely and clearly, ensuring your complete understanding of the delivered model and its results.

@Fareshassan96

Hello, I can develop a full-featured COMSOL Multiphysics model of a silicon Mach–Zehnder interferometer (MZI) optical sensor with fully parametric geometry, accurate electromagnetic modelling, and wavelength-swept analysis. I have experience simulating integrated photonic structures—silicon waveguides, interferometers, and modal devices—using COMSOL’s Electromagnetic Waves, Frequency Domain interface, ensuring precise phase and transmission predictions. For your MZI, I will define the silicon core and cladding stack, create dimension-controlled waveguide geometries, configure port excitations, and optimise the mesh to capture field confinement and phase evolution accurately. I will set up wavelength sweeps and tunable arm-length or refractive-index perturbations to produce clean interference fringes with high phase sensitivity and minimal loss. If beneficial, I can automate parameter sweeps using COMSOL’s Java API and document each workflow step clearly. You will receive a fully parametric .mph model, a concise PDF describing assumptions, boundary conditions, solver setup, and instructions for reproducing key plots (transmission spectrum, effective index, phase shift vs. perturbation), along with a short note on fabrication feasibility within standard silicon-photonics processes. Regards, Fares Hassan