Hello dear meep users, I am simulating an optical fiber structure having a grating layer on its tip. A circular source is placed inside the core and transmissiom and reflection flux is measured above and below the grating layer on the tip of fiber. In this senario, transmission monitor layer is placed in the air just above the grating and reflection monitir layer is placed inside the core and cladding just below the grating layer.
The refrective indices of the structures are core: 1.468, cladding: 1.4613, grating layer: 2.134. If i simulate just the grating suspended in the air, the transmission and reflection spectra are symmetric. While if i include core and cladding transmission spectrum remains the same but reflection sprectrum show strange graph. It ossicilates between -3 to 0.2 reflection values instead of staying in between 0 and 1. Can any body suggest what is the problem. The ctl file is attached. Regards, Yousuf Khan
fibertip.ctl
Description: Binary data
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