By using a photonic crystal fiber, a supercontinuum source with output power up to 1.7W, pumped by a passively mode-locked diode-pumped Nd：YVO4 picosecond laser is obtained. A spectral width of the supercontinuum is ...By using a photonic crystal fiber, a supercontinuum source with output power up to 1.7W, pumped by a passively mode-locked diode-pumped Nd：YVO4 picosecond laser is obtained. A spectral width of the supercontinuum is 1700 nm （500–2200 nm） with the 5 dB spectral width approximately 1000 nm （1200–2200 nm）. This high power wide band supercontinuum source meets the demand of many applications such as optical coherence tomography, frequency metrology and wavelength-division-multiplexing systems. The evolution of the supercontinuum with the increasing pump power is presented and analyzed.展开更多
A novel web-like microstructure optical fiber （MOF） submicron-thickness membranes as planar waveguides is fabricated which serves as a bundle of suspended and their Y-type connection nodes as the secondary cores. Th...A novel web-like microstructure optical fiber （MOF） submicron-thickness membranes as planar waveguides is fabricated which serves as a bundle of suspended and their Y-type connection nodes as the secondary cores. The polarization dependent visible continuum coverage from 350 to 1 000 nm is generated from a 20-cm-long membrane of 0.55-μm-thickness pumped by 200-fs laser at 800 nm. We also obtain narrowband signal of blue dispersive wave around 410 nm with the up-conversion efficiency routinely beyond 20% inthe Y-type secondary core in another smaller web-like MOF.展开更多
Samarium doped aluminosilicate fiber was fabricated by modified chemical vapor deposition （MCVD） process. The optical properties of this fiber were characterized by white light source and OSA. The photodarkening pro...Samarium doped aluminosilicate fiber was fabricated by modified chemical vapor deposition （MCVD） process. The optical properties of this fiber were characterized by white light source and OSA. The photodarkening property of the fiber was measured by an Ar^＋ laser. The experiment results proved that the samarium doped aluminosilicate fiber had better photodarkening resistance than that of the samarium doped germanosilicate fiber. A brief explanation showed that the photodarkening loss could be reduced by changing the fiber core＇s material from germanosilicate to aluminosilicate. Samarium doped aluminosilicate fiber was very promising for the red fiber laser application.展开更多
文摘By using a photonic crystal fiber, a supercontinuum source with output power up to 1.7W, pumped by a passively mode-locked diode-pumped Nd：YVO4 picosecond laser is obtained. A spectral width of the supercontinuum is 1700 nm （500–2200 nm） with the 5 dB spectral width approximately 1000 nm （1200–2200 nm）. This high power wide band supercontinuum source meets the demand of many applications such as optical coherence tomography, frequency metrology and wavelength-division-multiplexing systems. The evolution of the supercontinuum with the increasing pump power is presented and analyzed.
文摘A novel web-like microstructure optical fiber （MOF） submicron-thickness membranes as planar waveguides is fabricated which serves as a bundle of suspended and their Y-type connection nodes as the secondary cores. The polarization dependent visible continuum coverage from 350 to 1 000 nm is generated from a 20-cm-long membrane of 0.55-μm-thickness pumped by 200-fs laser at 800 nm. We also obtain narrowband signal of blue dispersive wave around 410 nm with the up-conversion efficiency routinely beyond 20% inthe Y-type secondary core in another smaller web-like MOF.
基金supported by National Science and Technology Major Project (2010ZX04013-052)
文摘Samarium doped aluminosilicate fiber was fabricated by modified chemical vapor deposition （MCVD） process. The optical properties of this fiber were characterized by white light source and OSA. The photodarkening property of the fiber was measured by an Ar^＋ laser. The experiment results proved that the samarium doped aluminosilicate fiber had better photodarkening resistance than that of the samarium doped germanosilicate fiber. A brief explanation showed that the photodarkening loss could be reduced by changing the fiber core＇s material from germanosilicate to aluminosilicate. Samarium doped aluminosilicate fiber was very promising for the red fiber laser application.
