Optimum Design of End-Pumped Solid-State Lasers

10 W injection-locked single-frequency continuous-wave titanium:sapphire laser

“…The arm lengths of the Ti:sapphire cavity is described in Section 4. First, we designed the Ti:sapphire cavity as the Rayleigh length of the pump beam equal to a half of the absorption length 1 / [19], which corresponded to a beam waist radius of 16.4 m, and then ended up choosing 15 m as a result of an optimization of the Ti:sapphire cavity. Since any optical elements except for the Ti:sapphire crystal were not installed in the Ti:sapphire cavity, the round-trip loss of the cavity without the output coupler M4 was notably small and measured to be 2%.…”

Absorption efficiency analysis and optical resonator simulation of Ho:YLF laser pumped with Tm:fiber laser

“…If the average size of the pump beam is less than the average size of the resonator mode, TEM 00 operation is often possible. It is because higher-order modes gain is less than losses and start to oscillate [33].…”

Power dependent photoacoustic and photoluminescence studies on a Ho3+/Yb3+ doped Y2O3 phosphor

“…Rare earth ions doped phosphors have received interest in photoacoustic studies along with the photoluminescence 5–9 . The rare earth phosphors can show strong downshifting as well as upconversion (UC) emission and upconversion phosphors have attracted lots of research interest in recent years 10–12 . Such phosphor materials have applications in solid-state lighting, silicon solar cells as efficiency enhancers, medical diagnostics, night glowing panels, optical temperature sensing, fingerprint detection, in vivo bio-imaging etc .…”