| 1. |
Would an optical fiber with a core index of
and a cladding index of
be able to guide light? |
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Click to try this problem again with different
indices of refraction!! (Or, reload the page.)
| 2. |
What is the numerical aperture of a fiber having a core index of
and a cladding index of
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Note: In an attempt at simplicity, significant figures have not
been accounted for in these practice pages. You should report at three
significant digits for this problem. We apologize for any inconvenience
this may cause you.
Click to try this problem again with different
indices of refraction! (Or, reload the page.)
| 3. |
A fiber has a numerical aperture of
. What is the cut-off angle (in degrees) for this fiber if the fiber is
surrounded by
? You may want to refer to the Table
containing indices of refraction. |
|
|
Note: In an attempt at simplicity, significant figures have not
been accounted for in these practice pages. You should report at three
significant digits for this problem. We apologize for any inconvenience
this may cause you.
Click to try this problem again with a different
material and numerical aperture! (Or, reload the page.)
| 4. |
A fiber surrounded by air has a numerical aperture of
. Will light entering the fiber at an angle of incidence of
remain in the fiber, or will it escape? |
|
|
Click to try this problem again with a different
numerical aperture and angle! (Or, reload the page.)
 |
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