Hello Aulia,
Thanks for your inquiry;
In OptiGrating you may design your grating and calculate the transmission/reflection spectra under certain temperature and/or strain profile(s) in separate simulations. You may then export the spectra and load it into the “OptiGrating” component within OptiSystem. This component models the grating as a fixed filter. In your OSA setup please make sure the wavelength range is correctly centered around the source center frequency. You may shift the grating filter center frequency by checking the “user defined frequency” and then setting the “Frequency” within the OptiGrating component if required.
Please note OptiSystem also includes Fiber Bragg Grating and FBG Sensor components. The latter could be used to perform temperature and strain sweep simulation. Several FBG sensor examples can be found in the examples library of the OptiSystem under Sensor systems\FBG Sensor.
Please feel free to contact me at amin.khorshidahmad@optiwave.com for more info.
Kind regards,
Amin