A semiconductor laser crystal of length 5 cm, refractive index 1.8 is used as an optical source. Determine the frequency separation of the modes.
A)2.8 ghz
B)1.2 ghz
C)1.6 ghz
D)2 ghz

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The Answer of A semiconductor laser crystal of length 5 cm, refractive index 1.8 is used as an optical source. Determine the frequency separation of the modes.
A)2.8 ghz
B)1.2 ghz
C)1.6 ghz
D)2 ghz

A Semiconductor Laser Crystal of Length 5 Cm, Refractive Index