Determine the peak gain wavelength of uncoated FPA having mode spacing – McqOptions

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1.	Determine the peak gain wavelength of uncoated FPA having mode spacing of 2nm,and 250 mlong active region and R.I of 3.78. a)2.25 10^-4
A.	4.53 10<sup>-8</sup>
B.	1.94 10<sup>-6</sup>
C.	4.25 10<sup>9</sup>
Answer» D.

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