J. Eur. Opt. Society-Rapid Publ. 22, 55( 2026) 539
Figure
5. Wavelength stability of the signal and idler lights over two hours.
Figure 3. Output spectra of fundamental and signal lights under different pump powers( 1.0, 3.0 and 5.0 W).
Figure
6. Output spectra of parasitic visible light, pump light, and signal light measured at a pump power of 5.0 W.
Figure 4. Output spectra of signal and idler lights at a pump power of 5.0 W.
is approximately 0.9 W. As the pump power at 807.6 nm increases, the signal and idler lights increase linearly. At the maximum pump power of 5.0 W, the power of the signal light and idler light reach 430 mW and 187 mW respectively; the total power is 617 mW. The total optical-to-optical conversion efficiency is 12.3 %, and the conversion efficiency of the mid-infrared light at 3.8 lm is 3.7 %. The slope efficiencies for the signal, idler, and total output power are 10.3 %, 4.5 %, and 14.8 %, respectively.
Figure 7. Output powers of the signal, idler, and total OPO as a function of pump power.