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3
votes
2answers
173 views

Fiber optics with broadband, incoherent light

I wonder if someone could help clarify waveguiding with broadband, incoherent light please. If we take a telecomms fiber, which is single-moded above ~1.4 μm and couple a laser beam in, we assume ...
2
votes
0answers
119 views

Why is Erbium Doped Fiber Amplifier (EDFA) preferred over Erbium Doped Waveguide Amplifier (EDWA)?

Why is Erbium Doped Fiber Amplifier (EDFA) preferred over Erbium Doped Waveguide Amplifier (EDWA)? The question has been asked from an engineering point of view, but obviously I would also be ...
1
vote
0answers
21 views

Distance between minima's of standing wave in a wave guide

I just started studying waveguides, i have a basic doubt about the standing wave pattern in waveguide. How are the m,n values related to the distance between the minima's? I read in a book that , ...
1
vote
0answers
40 views

Computing the Electric and Magnetic Field Distribution of a Funnel Waveguide

In our undergraduate E&MWaves class, we learned about a rectangular waveguide, and how to calculate the electric and magnetic field distribution throughout the waveguide using finite element ...
1
vote
0answers
103 views

Longitudinal EMAG wave?

I'm reading about optical waveguide analysis, and often come across the terms "transverse electric mode" vs. "transverse magnetic mode". As I unerstand, it means that the electric/magnetic field has ...
0
votes
0answers
16 views

Waveguide: Geometric interpretation to the $\sqrt{(1 - (f_{mn} /f)^2)}$ factor that appears everywhere?

In EM pretty much everything has a greek alphabet associated with it, that's why I'm got a bit curious while looking at the $\sqrt{(1 - (f_{mn} /f)^2)}$ factor which appears everywhere in wave guide ...
0
votes
0answers
72 views

Compatibility between solutions of explicit Maxwell equations vs. wave equation?

When trying to solve for the allowed propagation frequencies in a cylindrical waveguide, I approached the problem by solving the wave equation for all three components of $\bar{E}$, and subsequently ...
0
votes
0answers
48 views

Non reflecting boundaries in waveguides

Can someone please explain the Sommerfeld radiation condition and what is the alternative non-reflecting boundary conditions for waveguides of general geometries?