A novel all-fiber self-organization coherent Erbium-doped fiber laser is proposed and demonstrated. The laser system is composed of two independent lasers. When each of the two branch lasers operates independently, th...A novel all-fiber self-organization coherent Erbium-doped fiber laser is proposed and demonstrated. The laser system is composed of two independent lasers. When each of the two branch lasers operates independently, the output power is 10. 41mW and 8.69 mW respectively. By adjusting a polarization controller (PC), the two lasers achieve coherent coupling, and the output power is 24.4 mW, which is more than two times that the single laser yields. Furthermore, we bring forward and discuss the factor estimating the effect of coherent combination—coherent coupling factor. The value of growth factor to evaluate the effect of coherent combining is 1.27. The coherent fiber laser has the advantages of simple structure, high efficiency and single frequency, which conduce to coherent coupling easily.展开更多
TH773 2000010715小型NAB光纤耦合医用激光器=Minature NABoptical fibre coupled lasers for medical applications[刊,中]/黄奕川,邱闽旺,陈光,陈金华,赵挺洁,江爱栋,罗遵度（中科院福建物构所.福建,福州（350002））//量子电子学报....TH773 2000010715小型NAB光纤耦合医用激光器=Minature NABoptical fibre coupled lasers for medical applications[刊,中]/黄奕川,邱闽旺,陈光,陈金华,赵挺洁,江爱栋,罗遵度（中科院福建物构所.福建,福州（350002））//量子电子学报.—1998,15（3）.—308-310报道了以（Φ3×21）mm<sup>3</sup>的小型脉冲氙灯泵浦（Φ3×21）mm<sup>3</sup>的NAB晶体的脉冲激光器,通过聚焦系统和光纤耦合组成体积小、重量轻、携带方便的小型光纤耦合医用激光器。图4参4（于晓光）TH773 2000010716低功率CO<sub>2</sub>激光血管焊接机的微机控制系统研究=Study of a low power CO<sub>2</sub> laser blood展开更多
According to the principle of choosing the light source in the fiber optic sensing measurement,semiconductor laser is used as the light source of fiber optic sensor and single-mode fiber is used as the tail fiber of l...According to the principle of choosing the light source in the fiber optic sensing measurement,semiconductor laser is used as the light source of fiber optic sensor and single-mode fiber is used as the tail fiber of light source. Based on optical design software Zemax’s pure non-sequential components,a coupling system of semiconductor laser and single-mode fiber is designed. By analyzing the beam characteristics of the semiconductor laser and the coupled mode theory of semiconductor laser and single-mode fiber,the combined lens consists of a ball lens and a collimating lens for the purpose of improving the coupling efficiency and adjusting tolerance. The simulation results show that the coupling efficiency can reach about 78% by using one million ray traces on non-sequential components,while the experimental test result is 69.11%,accordingly,the reasons for the difference between the experiment and the simulation results are analyzed.展开更多
We report Raman lasing and the optical analog of electromagnetically-induced-transparency(EIT) in a whispering-gallery-mode(WGM) microtoroid resonator embedded in a low refractive index polymer matrix together with a ...We report Raman lasing and the optical analog of electromagnetically-induced-transparency(EIT) in a whispering-gallery-mode(WGM) microtoroid resonator embedded in a low refractive index polymer matrix together with a tapered fiber coupler. The microtoroid resonator supports both single mode and multimode Raman lasing with low power thresholds. Observations of Fano and EIT-like phenomena in a packaged microresonator will enable high resolution sensors and can be used in networks where slow-light effect is needed. These results will open up new possibilities for portable, robust, and stable WGM microlasers and resonator-based sensors for applications in various environments.展开更多
基金This work was supported by the National Key Basic Research andDevelopment Program of China (Grant No. 2003CB314906)Na-tional Natural Science Foundation of China (Grant No. 60407005)Tianjin Natural Science Foundation (Grant No06YFJZJC00300).
文摘A novel all-fiber self-organization coherent Erbium-doped fiber laser is proposed and demonstrated. The laser system is composed of two independent lasers. When each of the two branch lasers operates independently, the output power is 10. 41mW and 8.69 mW respectively. By adjusting a polarization controller (PC), the two lasers achieve coherent coupling, and the output power is 24.4 mW, which is more than two times that the single laser yields. Furthermore, we bring forward and discuss the factor estimating the effect of coherent combination—coherent coupling factor. The value of growth factor to evaluate the effect of coherent combining is 1.27. The coherent fiber laser has the advantages of simple structure, high efficiency and single frequency, which conduce to coherent coupling easily.
文摘TH773 2000010715小型NAB光纤耦合医用激光器=Minature NABoptical fibre coupled lasers for medical applications[刊,中]/黄奕川,邱闽旺,陈光,陈金华,赵挺洁,江爱栋,罗遵度（中科院福建物构所.福建,福州（350002））//量子电子学报.—1998,15（3）.—308-310报道了以（Φ3×21）mm<sup>3</sup>的小型脉冲氙灯泵浦（Φ3×21）mm<sup>3</sup>的NAB晶体的脉冲激光器,通过聚焦系统和光纤耦合组成体积小、重量轻、携带方便的小型光纤耦合医用激光器。图4参4（于晓光）TH773 2000010716低功率CO<sub>2</sub>激光血管焊接机的微机控制系统研究=Study of a low power CO<sub>2</sub> laser blood
基金Youth Science and Technology Research Foundation of Shanxi Province(No.2015021104)Programs for Science and Technology Development of Shanxi Province(No.201703D121028-2)
文摘According to the principle of choosing the light source in the fiber optic sensing measurement,semiconductor laser is used as the light source of fiber optic sensor and single-mode fiber is used as the tail fiber of light source. Based on optical design software Zemax’s pure non-sequential components,a coupling system of semiconductor laser and single-mode fiber is designed. By analyzing the beam characteristics of the semiconductor laser and the coupled mode theory of semiconductor laser and single-mode fiber,the combined lens consists of a ball lens and a collimating lens for the purpose of improving the coupling efficiency and adjusting tolerance. The simulation results show that the coupling efficiency can reach about 78% by using one million ray traces on non-sequential components,while the experimental test result is 69.11%,accordingly,the reasons for the difference between the experiment and the simulation results are analyzed.
基金supported by the US Army Research Office(ARO)(W911NF-12-1-0026 and W911NF1710189)
文摘We report Raman lasing and the optical analog of electromagnetically-induced-transparency(EIT) in a whispering-gallery-mode(WGM) microtoroid resonator embedded in a low refractive index polymer matrix together with a tapered fiber coupler. The microtoroid resonator supports both single mode and multimode Raman lasing with low power thresholds. Observations of Fano and EIT-like phenomena in a packaged microresonator will enable high resolution sensors and can be used in networks where slow-light effect is needed. These results will open up new possibilities for portable, robust, and stable WGM microlasers and resonator-based sensors for applications in various environments.
