What are "Optical Modes" actually? Single Mode and Multimode fibers explained!

Link to detailed note showing MMF derivation:
github.com/OleKrarup123/NLSE-vector-solver/blob/ma…

Numerical simulation of electric field in SMF and MMF
   • Optical fibers, single-mode vs multi-...  

How mode mismatch leads to power loss:
   • Splice Loss  

Link to python Notebook for solving mode equations:
github.com/OleKrarup123/NLSE-vector-solver/blob/ma…

Brief overview of multimode fibers:
www.rp-photonics.com/multimode_fibers.html

Explanation of modes in rectangular waveguides (lectures 18-23):
   • Lecture 18: Waves in guided structure...  

Additional derivation of modes in fibers:
prefetch.eu/know/concept/step-index-fiber/

Lectures on SMF and MMF:
   • Optical Fiber 101: Understanding Sing...  
   • Optical Fiber 101: Using Single Mode ...