Example A He-Ne laser (n = 1.0) has a cavity length of 50 cm and an output wavelength of 632.8 nm. %3D Find: The mode spacing and the ne esd longitudinal mode number.

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Example A He-Ne laser (n = 1.0) has a cavity
%3D
1
length of 50 cm and an output
wavelength of 632.8 nm.
anal viv dal DA A
Find:
The
mode spacing and
the
DAY
ne ead longitudinal mode number.
Transcribed Image Text:Example A He-Ne laser (n = 1.0) has a cavity %3D 1 length of 50 cm and an output wavelength of 632.8 nm. anal viv dal DA A Find: The mode spacing and the DAY ne ead longitudinal mode number.
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