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Problem 1
A certain He-Ne laser cavity of the type shown in Figure 6 has a mirror
separation of 30 cm. The helium-neon laser gain medium is capable of
supporting laser light of wavelengths in the range from A1 = 632.800 nm to
A2 = 632.802 am. Find:
a. The approximate number m of half-wavelengths that fit into the cavity
b. The range of frequencies supported by the helium-neon gain medium

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