Twin Rod Birefringence Compensation Explained
The advantages of a twin rod, birefringence compensated architecture in high average power pulsed Nd:YAG lasers: much improved spatial profile, extraction efficiency and harmonic conversion efficiency. Strain birefringence is a thermal effect in Nd:YAG brought about by heat deposited in a rod by pumping it. The centre of the rod becomes warmer than the outside, […]
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