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_semiconductor_laser_crystal_of_length_5_cm,_refractive_index_1.8_is_

1.	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
Answer» D. 2 GHz

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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.$

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