Lasers - energy per round-trip

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SUMMARY

The discussion focuses on calculating the energy added to a solid-state laser beam per round-trip within its resonator. Key parameters include the gain medium diameter, length, population difference, gamma-alpha (r-a), broadening, wavelength, spontaneous emission rate, refraction coefficient, and mirror reflectivity (R1=1, R2=0.9). The consensus is that in a steady-state condition, the energy increase equals the losses in the system. This principle is crucial for understanding laser operation and efficiency.

PREREQUISITES
  • Understanding of solid-state laser mechanics
  • Familiarity with resonator design and parameters
  • Knowledge of optical gain and loss mechanisms
  • Basic principles of laser physics and steady-state conditions
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  • Research the calculation of energy losses in laser resonators
  • Explore the impact of mirror reflectivity on laser performance
  • Learn about the role of population inversion in solid-state lasers
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Laser physicists, optical engineers, and researchers in photonics who are looking to deepen their understanding of laser energy dynamics and resonator design.

yoni3468
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Hi all,

I would like to ask a question regarding lasers and resonators:

If I have a solid-state laser, and I know the following information:

The gain medium diameter, it's length, population difference between the energy levels, gamma-alpha (r-a), broadening, wavelength, spontaneous emission rate, refraction coefficient, and the mirrors' reflectivity (R1=1 and R2=0.9);

How can I calculate the energy that is being added to the laser beam per round-trip within the resonator?
 
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I thought a bit about it, and I have a theory:

If the cavity has already reached it's steady state, the energy must remain constant.
That means that if I'm looking for the energy increase, it must be equal to the losses.

What do you think?
 

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