A Fabry–Perot laser diode has an internal loss coefficient is 40dB.cm-1 , longitudinal mode spacing is...

A Fabry–Perot laser diode has an internal loss coefficient is 40dB.cm-1 , longitudinal mode spacing is 88GHz and mirror reflectivity, R1 = R2 = 0.5. Compute the length of the cavity and the photon lifetime. Also, compute the minimum required gain to sustain laser oscillations. Assume that the velocity of light in the active region is 9.09 × 107 m/s.

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genius_generous answered 2 years ago

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