Design of New Pumping Cavity with Compound Parabolic Concentrator for Solar-Pumped Laser | Zendy

Tomomasa Ohkubo | Zendy

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Design of New Pumping Cavity with Compound Parabolic Concentrator for Solar-Pumped Laser

Author(s) -

Tomomasa Ohkubo

Publication year - 2016

Publication title -

journal of advanced computational intelligence and intelligent informatics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.172

H-Index - 20

eISSN - 1343-0130

pISSN - 1883-8014

DOI - 10.20965/jaciii.2016.p1065

Subject(s) - nonimaging optics , concentrator , parabolic reflector , laser , computer science , optics , optoelectronics , materials science , physics , telecommunications

The pumping cavity we propose for solar-pumped lasers consists of a compound parabolic concentrator (CPC) and a conventional cone-shaped cavity. We applied ray tracing and FEM simulation in designing the cavity. Simulation results suggest that the cavity increases absorption efficiency 1.2 times over the conventional cone-shaped cavity and decreases the standard deviation of absorption density distribution by 33% and thermal stress by 19% over the conventional. Our evaluation of the cavity in lasing experiments realized 80 W in stable laser output.

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