We propose a simple algorithm for the precise engineering of multi-channel gain profile of Raman amplifier. By employing a linear approximation in the pump interaction calculation, together with a semi-empirical pump ...We propose a simple algorithm for the precise engineering of multi-channel gain profile of Raman amplifier. By employing a linear approximation in the pump interaction calculation, together with a semi-empirical pump power correction using the simplistic output signal spectrum measurement, excellent gain engineering capability has been demonstrated for various target gain profiles, within +/- 0.4dB of error.展开更多
A 95 W Nd：YAG laser system pumped by a vertical cavity surface emitting laser（VCSEL） array is described.The laser contains an all-fiber-based seeder, an Nd：YAG regenerative amplifier, and a four-pass amplifier. Th...A 95 W Nd：YAG laser system pumped by a vertical cavity surface emitting laser（VCSEL） array is described.The laser contains an all-fiber-based seeder, an Nd：YAG regenerative amplifier, and a four-pass amplifier. The laser operates at 300 Hz with energies up to 317 m J. The beam has a top-hat intensity distribution. The temporal pulse shape is flat in time, and the pulse width can be adjusted in the range of 2–6 ns.展开更多
In this Letter, we demonstrate a diode-pumped electro-optical cavity-dumped Tm：YAP laser for the first time to our knowledge. A pulse width of 7.1 ns is achieved at a wavelength of 1996.9 nm. A maximum output power o...In this Letter, we demonstrate a diode-pumped electro-optical cavity-dumped Tm：YAP laser for the first time to our knowledge. A pulse width of 7.1 ns is achieved at a wavelength of 1996.9 nm. A maximum output power of 3.02 W is obtained with a pump power of 58.8 W at a repetition rate of 100 k Hz and a high-voltage time of 1000 ns, corresponding to an overall optical-to-optical conversion efficiency of 5.2%. In addition, we study the effect of repetition rate and high-voltage time on the output power characteristics of a cavity-dumped Tm：YAP laser.展开更多
文摘We propose a simple algorithm for the precise engineering of multi-channel gain profile of Raman amplifier. By employing a linear approximation in the pump interaction calculation, together with a semi-empirical pump power correction using the simplistic output signal spectrum measurement, excellent gain engineering capability has been demonstrated for various target gain profiles, within +/- 0.4dB of error.
文摘A 95 W Nd：YAG laser system pumped by a vertical cavity surface emitting laser（VCSEL） array is described.The laser contains an all-fiber-based seeder, an Nd：YAG regenerative amplifier, and a four-pass amplifier. The laser operates at 300 Hz with energies up to 317 m J. The beam has a top-hat intensity distribution. The temporal pulse shape is flat in time, and the pulse width can be adjusted in the range of 2–6 ns.
基金supported by the National Natural Science Foundation of China (Nos. 61308009 and 61405047)the China Postdoctoral Science Foundation funded project (Nos. 2013M540288 and 2015M570290)+2 种基金the Fundamental Research funds for the Central Universities Grant (Nos. HIT. NSRIF.2014044 and HIT. NSRIF.2015042)the Science Fund for Outstanding Youths of Heilongjiang Province (No. JQ201310)the Heilongjiang Postdoctoral Science Foundation Funded Project (No. LBH-Z14085)
文摘In this Letter, we demonstrate a diode-pumped electro-optical cavity-dumped Tm：YAP laser for the first time to our knowledge. A pulse width of 7.1 ns is achieved at a wavelength of 1996.9 nm. A maximum output power of 3.02 W is obtained with a pump power of 58.8 W at a repetition rate of 100 k Hz and a high-voltage time of 1000 ns, corresponding to an overall optical-to-optical conversion efficiency of 5.2%. In addition, we study the effect of repetition rate and high-voltage time on the output power characteristics of a cavity-dumped Tm：YAP laser.
