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The characteristics of a room-temperature Fe2+: ZnSe laser based on a polycrystalline sample pumped by a non-chain HF laser were studied. The Fe2+: ZnSe laser energy was E = 15 mJ at the efficiency with respect to the absorbed HF laser energy ηab=15%.
When adhesive free bonded (AFB) periodically-inverted potassium titanyl phosphate (KTiOPO4, KTP) plates were used as a nonlinear medium inside a cavity, coupled optical parametric oscillators (OPOs) were implemented [1]. As a result, two signal waves and two idler waves can be simultaneously generated. In singly resonant OPOs, two idler waves were used to efficiently generate THz waves [2]. When a...
We investigated multiple coupled optical parametric oscillators, exhibiting behaviors of strong coupling. Conversion efficiency and slope efficiency stay the same as those for conventional and two coupled optical parametric oscillators whereas linewidths are significantly reduced.
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