October 18, 2023 at 1:49 pmMehmet UnluSubscriber
Dear Ansys Help Center,
I am writing to seek guidance on a specific task involving the Lumerical 3D FDTD program and Lumerical Interconnect. I am working with a time domain source with a 90 fs pulse length, a 193.5 THz frequency, and a 500 fs offset. I have successfully configured these parameters in the mode source of the Lumerical 3D FDTD program, as shown in the first figure.
Subsequently, I attempted to replicate this configuration in Lumerical Interconnect using the Optical Gaussian Pulse Generator component. However, I encountered a challenge in achieving the desired 90 fs pulse length. Despite my attempts to adjust the "width" parameter and input the appropriate frequency value, the resulting pulse width consistently remains in the nanosecond range. You can observe the system setup and the oscilloscope output in the second and third figures.
I kindly request your assistance in elucidating the procedure to obtain a single pulse in Lumerical Interconnect similar to the characteristics of the FDTD mode source, specifically the 90 fs pulse length.
Thank you for your support and guidance.
October 27, 2023 at 1:39 pmMehmet UnluSubscriber
Any suggestion ?
October 28, 2023 at 12:08 amGuanhui WangAnsys Employee
Thank you for the post. For the Gaussian pulse in INTERCONNECT, if you want a 90 fs pulse width, you will need correspondly bitrate of f = 1/90 fs ~ 1.1e13 Hz or higher. You can change the bitrate settings in the Root Element simulation settings.
Hope this can hekp.
- You must be logged in to reply to this topic.
Boost Ansys Fluent Simulations with AWS
Computational Fluid Dynamics (CFD) helps engineers design products in which the flow of fluid components is a significant challenge. These different use cases often require large complex models to solve on a traditional workstation. Click here to join this event to learn how to leverage Ansys Fluids on the cloud, thanks to Ansys Gateway powered by AWS.
Earth Rescue – An Ansys Online Series
The climate crisis is here. But so is the human ingenuity to fight it. Earth Rescue reveals what visionary companies are doing today to engineer radical new ideas in the fight against climate change. Click here to watch the first episode.
Subscribe to the Ansys Blog to get great new content about the power of simulation delivered right to your email on a weekly basis. With content from Ansys experts, partners and customers you will learn about product development advances, thought leadership and trends and tips to better use Ansys tools. Sign up here.
- “Import optical generation” or “delta generation rate”?
- Why am I getting “process exited without calling finalize”, and how do I fix it?
- Using a license file on a new license server
- Ansys Insight: Diverging Simulations
- Error: addfdtd is not a valid function or a variable name
- Questions about the calculation of the cross-polarization conversion efficiency of metasurface
- Finding your Ansys (or Lumerical) account number
- Error on Lumerical device
- Ansys Insight: About override mesh in FDTD: its use and settings
- Lumerical – error message when trying to open from Linux terminal
© 2023 Copyright ANSYS, Inc. All rights reserved.