Hi Ramya,
The OptiGrating currently does not support titled FBGs. However, we are in the process of releasing a component for tilted FBGs.
We would be happy to discuss your specific requirements and might be able to offer design-simulation services in the meantime. We are also open to partnership in research projects with academia.
BTW, please let me know if you had further issues using the trail version.
Kind regards,
Amin