partly supported by the National Key Technology R&D Program of the Ministry of Science and Technology(2012BAC23B03);National Key Basic Research Program of China(2013CB922401);the National Natural Science Foundation of China(11074298,60878020)
By inversing the signal and idler in a two-stage noncollinear optical parametric amplifier which is,respectively,pumped by the second harmonic and fundamental wave of femtosecond Ti:sapphire laser at repetition rate o...
Supported by UK Engineering and Physical Sciences Research Council (EPSRC), Coherent Inc.;the National Natural Science Foundation of China (Grant No. 60308001)
The intrinsic synchronization, multi-color outputs and related carrier-envelope phases (CEP) among pulses bring advantages to synchronously pumped femtosecond optical parametric oscillators and the pumping sources for...
Supported by Photonics Research Ontario, NSERC, Alfred P. Sloan Foundation of Canada
Intense mid-infrared was generated by direct frequency mixing two pulses from a dual-wavelength Ti:sapphire system. From a multipass amplifier we generated two tunable wavelength femtosecond pulses with a total energy...
The .Er3+-Yb3+-doped fiber has a broadened absorption spectrum, which means the pumping sources can work efficiently from 810 to 1100nm. Among them 980nm is the maximum.absorption (10 dB/km) wa...
Project supported by the National Natural Science Foundation of China.
Nd:Sr5(VO4)3F (Nd:SVAP) is a new type of laser crystal reported in recent years. L. George declared the growth of Nd:SVAP crystal for the first time at MRS fall meeting in 1993. So...
Self-pumped and mutually-pumped phase conjugations have been the most intensively investigated photorefractive phenomena in recent years.Various photorefractive crystals (BaTiO3, SBN, BTO, etc., doped or n...
Nd-doped fiber laser pumped by Ar ion 514.5 nm laser has been reported previously. Our recent experiment demonstrates that 1060 nm CW operation can also be achieved when pumped by other wavelength components of Ar ion...
Since Sorokin, Braslaum and Prokhorov put forward the two-photon stimulated emission amplification, much work has been done in this field. In recent years, a lot of progress has been made in two-photon amplifier, in t...
An enrichment factor as large as possible and a height equivalent to theoretical plate (HETP) as small as possible are required in isotope enrichments. The relation between enrichment factor, HETP and degree of enrich...