Posts tagged High Power Lasers
Estimates of Second Harmonic Generation (SHG) Efficiency

Can the second harmonic generation be done efficiently with the right amount of peak power?  In this article we will analyze what happens with lower peak power.  For example, what if we run the same laser continuously (CW), so the average power might still be one Watt, but the peak power is now also now only one Watt.  Can we efficiently generate the second harmonic of that CW beam?  Read more and explore SGH with us…

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Different Crystals for Different OPOs

This is the third in a series on OPOs from Gamdan Optics… With all the different types of OPOs, the choice of nonlinear crystal depends upon many factors: the desired beam powers, wavelengths, temporal profile (pulsed or CW), and other aspects of the OPO. The characteristics of all three beams (pump, signal, and idler) matter.  The nonlinear crystal needs to transmit all the wavelengths.  The crystal needs to provide a sufficiently strong nonlinear interaction between the beams—the crystal’s ability to support a strong nonlinear interaction is often characterized by a number, the nonlinear coupling coefficient. 

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