EE231 Fall 2003: Homework

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EE231 Fall 2003 Homework 1
Issued 09/30/03 Due 10/07/03
1. Do problem 2.2. in Yariv.
2. Do problem 2.6. in Yariv for elements (2),
(3), and (5) of the table on p. 41. Hints
element (2) Consider rays which are parallel to
the optical axis either before or after passing
through the
lens. element (3) Use Snells law.
3. Do problem 2.12. in Yariv. Hints The lens
should look like this
R1
R2
n
d
 
Be careful with the definition of the signs of
the radii.
4. Gaussian beams Consider the confocal cavity
shown below. The light beam in the cavity is a
Gaussian beam. If R 25 cm, and the mirrors
are of diameter 2.5 cm, estimate the divergence
of the beam and its spot size (minimum waist)
for light of wavelength 500 nm.
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