supported in part by the National Natural Science Foundation of China (Nos.62071487,62201615,62301569,and 62371470)。
Photonic microwave harmonic down-converters (PMHDCs) based on self-oscillation optical frequency combs (OFCs) are interesting because of their broad bandwidth compared with plain optoelectronic oscillators. In this pa...
supported by the National Basic Research Program of China (No. 2013CBA01505);the Science and Technology Commission of Shanghai (No. 15XD1502100)
Back conversion is an intrinsic phenomenon in nonlinear frequency down-conversion processes. However, the physical reason for its occurrence is not well understood. Here, we theoretically reveal that back conversion i...
This work was supported by the National Natural Science Foundation of China (No. 51172254 and No. 51202269) and the Science and Technology Commission of Shanghai Municipality (No. 10JC1415700).
Re^3+, Yb^3+ co-doped (Re0005YbxY 0995 x )3Al5O12 [Re = Ce, Er, x = 0, 0.02, 0.05, 0.1, and 0.2] transparent ceramics are synthesized by the solid state reaction and vacuum sintering as the down-conversion (DC) ...