A compact low noise single frequency linearly polarized distributed Bragg reflector(DBR)fiber laser based on a 1.4-cm-long homemade Er^(3+)/Yb^(3+)-codoped phosphate single mode glass fiber has been demonstrated.An ov...A compact low noise single frequency linearly polarized distributed Bragg reflector(DBR)fiber laser based on a 1.4-cm-long homemade Er^(3+)/Yb^(3+)-codoped phosphate single mode glass fiber has been demonstrated.An over 50 mW stable single frequency linearly polarized fiber laser was achieved.The measured slope efficiency is more than 21.6%,and the signal-to-noise ratio(SNR)is higher than 65 dB and the laser linewidth is less than 2.0 kHz.The laser RIN is measured to be less than-150 dB/Hz at the frequencies over 2.0 MHz,and the obtained linear polarization extinction ratio(LPER)is more than 30 dB.展开更多
Efficient and stable laser dyes pyrromethene-BF2 complexes were successfully incorporated into organically modified silicate(Ormosil)matrices via sol-gel process.Laser oscillation were easily observed in all hand-poli...Efficient and stable laser dyes pyrromethene-BF2 complexes were successfully incorporated into organically modified silicate(Ormosil)matrices via sol-gel process.Laser oscillation were easily observed in all hand-polished dye-doped Ormosils pumped by frequency-doubled radiation from a laser-diode pumped Q-switched Nd:YAG laser.A slope efficiency of 57% has been obtained from one of the dyes in Ormosil,the cavity was continuously tunable over 50nm,from 550 to 600nm.The laser output energy has only 10% reduction after 3.0×10^(4) pulses at a pump repetition rate of 30Hz and a pump intensity of 1 J/cm^(2).An efficient,all-solid-state,compact,long-lifetime,and tunable dye laser has been demonstrated.展开更多
基金Supported by the National High-Technology Research and Development Program of China under Grant No 2011AA030203the National Natural Science Foundation of China under Grant Nos 11174085,U0934001 and 60977060+2 种基金the Guangdong Province and Hong Kong Invite Public Bidding Program(TC10BH07-1)the Science and Technology Project of Guangdong(2009A090100044,2009B091300127,cgzhzd0903,2011B090400055)the Fundamental Research Funds for the Central Universities(2012ZZ0002,2009ZG0005).
文摘A compact low noise single frequency linearly polarized distributed Bragg reflector(DBR)fiber laser based on a 1.4-cm-long homemade Er^(3+)/Yb^(3+)-codoped phosphate single mode glass fiber has been demonstrated.An over 50 mW stable single frequency linearly polarized fiber laser was achieved.The measured slope efficiency is more than 21.6%,and the signal-to-noise ratio(SNR)is higher than 65 dB and the laser linewidth is less than 2.0 kHz.The laser RIN is measured to be less than-150 dB/Hz at the frequencies over 2.0 MHz,and the obtained linear polarization extinction ratio(LPER)is more than 30 dB.
基金Supported in part by the National Natural Science Foundation of China under Grant No.59682002Tongji University Research Foundation.
文摘Efficient and stable laser dyes pyrromethene-BF2 complexes were successfully incorporated into organically modified silicate(Ormosil)matrices via sol-gel process.Laser oscillation were easily observed in all hand-polished dye-doped Ormosils pumped by frequency-doubled radiation from a laser-diode pumped Q-switched Nd:YAG laser.A slope efficiency of 57% has been obtained from one of the dyes in Ormosil,the cavity was continuously tunable over 50nm,from 550 to 600nm.The laser output energy has only 10% reduction after 3.0×10^(4) pulses at a pump repetition rate of 30Hz and a pump intensity of 1 J/cm^(2).An efficient,all-solid-state,compact,long-lifetime,and tunable dye laser has been demonstrated.
