Answer:
lasing threshold condition is 32.78 cm
Explanation:
given data
uncoated facets R = 0.32
a = 10 cm
length L = 500 um = [tex]500*10^{-4}[/tex] m
to find out
lasing threshold condition
solution
we know lasing threshold condition formula that is
lasing threshold = a - [tex]\frac{1}{2L}[/tex] ln [tex]\frac{1}{R^2}[/tex] ..........1
put here all value in equation 1 we get
lasing threshold = a - [tex]\frac{1}{2L}[/tex] ln [tex]\frac{1}{R^2}[/tex]
lasing threshold = 10 - [tex]\frac{1}{2(500*10^{-4}}[/tex] ln [tex]\frac{1}{0.32^2}[/tex]
lasing threshold = 32.78
so lasing threshold condition is 32.78 cm
