Question

a) Calculate the exponential gain constant for a low-pressure Helium-Neon laser operating at 632.8 nm and having the following characteristics: (N2 - N1) = 10^9/cm^3, Δvgain = 10^9 Hz, tspont = 10^-7 sec. You may assume that n = 1.0 and that the gain medium is homogeneously broadened. a) If the laser is 12 cm long, how much will the intensity of a wave be amplified after a single pass down the length of the resonator?

Name: a calculate the exponential gain constant for a low pressure helium neon laser operating at 6328 nm and having the following characteristics n2 n1 109cm3 vgain 109 hz tspont 10 7 sec you may 97147
Uploaded: 2023-12-15T05:24:33-08:00
Duration: 2 min 7 s
Channel: Adi S
Description: a calculate the exponential gain constant for a low pressure helium neon laser operating at 6328 nm and having the following characteristics n2 n1 109cm3 vgain 109 hz tspont 10 7 sec you may 97147

          a) Calculate the exponential gain constant for a low-pressure Helium-Neon laser operating at 632.8 nm and having the following characteristics: (N2 - N1) = 10^9/cm^3, Δvgain = 10^9 Hz, tspont = 10^-7 sec. You may assume that n = 1.0 and that the gain medium is homogeneously broadened.
a) If the laser is 12 cm long, how much will the intensity of a wave be amplified after a single pass down the length of the resonator?

a calculate the exponential gain constant for a low pressure helium neon laser operating at 6328 nm and having the following characteristics n2 n1 109cm3 vgain 109 hz tspont 10 7 sec you may 97147

Added by Irene W.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Adi S

12/15/2023

Step 1

Step 1: Calculate the exponential gain constant (α) using the formula: α = (N2 - N1) * σ * Δvgain where: (N2 - N1) = 10^9/cm^3 (population inversion density) σ = cross-section of the gain medium (we assume σ = 10^-19 cm^2 for a Helium-Neon laser) Δvgain = 10^9 Hz Show more…

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a) Calculate the exponential gain constant for a low-pressure Helium-Neon laser operating at 632.8 nm and having the following characteristics: (N2 - N1) = 10^9/cm^3, Δvgain = 10^9 Hz, tspont = 10^-7 sec. You may assume that n = 1.0 and that the gain medium is homogeneously broadened. a) If the laser is 12 cm long, how much will the intensity of a wave be amplified after a single pass down the length of the resonator?