Dear Alexey,
OptiSystem Optical Fiber components doesn’t support temperature dependence. However, you may place an FBG sensor in front of the fiber to study the effect of temp and stress on the performance of the fiber experiencing Brillouin effect. The FBG center wavelength is going to shift due to stress, then it will propagate in the fiber and experience SBS effect that is different. This can be clear if you can load wavelength dependent Brillouin gain data to the component properties popup window in the Enhanced tab. The data structure should follow
1540 42e-12
1550 45e-12
1560 46e-12
Regards,
Ahmad