Hollow-core photonic crystal fibre for high power laser beam delivery

• 作 者: Yingying Wang Meshaal Alharbi Thomas D.Bradley Coralie Fourcade-Dutin Benot Debord Benot Beaudou Frdric Germe Fetah Benabid
• 机 构: Gas-phase Photonic Material Group, CPPM, Physics Department, University of Bath,GPPMM Group, Xlim Re
• 出 处: High Power Laser Science and Engineering
• 发表日期: 2013年01期
• 关键词: fibre photonic cladding silica spark hollow ignition guidance overlap broadband

We review the use of hollow-core photonic crystal fibre(HC-PCF)for high power laser beam delivery.A comparison of bandgap HC-PCF with Kagome-lattice HC-PCF on the geometry,guidance mechanism,and optical properties shows that the Kagome-type HC-PCF is an ideal host for high power laser beam transportation because of its large core size,low attenuation,broadband transmission,single-mode guidance,low dispersion and the ultra-low optical overlap between the core-guided modes and the silica core-surround.The power handling capability of Kagome-type HC-PCF is further experimentally demonstrated by millijoule nanosecond laser spark ignition and~100μJ sub-picosecond laser pulse transportation and compression.

We review the use of hollow-core photonic crystal fiber (HC-PCF) for high power laser beam delivery. A comparison of bandgap HC-PCF with Kagome-lattice HC-PCF on the geometry, guidance mechanism, and optical properties shows that the Kagome-type HC-PCF is an ideal host for high power laser beam transportation because of its large core size, low attenuation, broadband transmission, single-mode guidance, low dispersion and the ultra-low optical overlap between the core-guided modes and the silica core-surround. The power handling capability of Kagome-type HC-PCF is further experimentally demonstrated by millijoule nanosecond laser spark ignition and ~ 100 μJ sub-picosecond laser pulse transportation and compression.