1.

Considering the values given below, calculate the mode separation in terms of free space wavelength for a laser. (Frequency separation = 2GHz, Wavelength = 0.5 μm)

A. 1.4×10-11
B. 1.6×10-12
C. 1×10-12
D. 6×10-11
Answer» C. 1×10-12


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