Soren
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- Apr 7, 2012
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I have a few questions that I couldn't resolve through searching.
1.) Why is the lasing threshold for 445nm diodes so high? Is it because of resonator losses? If that is so, why can we have low power diodes like PHRs?
2.) How do you get YAG or YVO4 to lase at different wavelengths (for blue and yellow DPSS)? I understand that it has to do with the energy difference between the excited and ground state, but how exactly does one achieve that?
3.) How does resonator length contribute to the output wavelength?
:thinking:
1.) Why is the lasing threshold for 445nm diodes so high? Is it because of resonator losses? If that is so, why can we have low power diodes like PHRs?
2.) How do you get YAG or YVO4 to lase at different wavelengths (for blue and yellow DPSS)? I understand that it has to do with the energy difference between the excited and ground state, but how exactly does one achieve that?
3.) How does resonator length contribute to the output wavelength?
:thinking: