Properties of Single Picosecond Pulses from Neodymium:phosphate Glass
نویسنده
چکیده
Streak camera detect ion has been used to determine the temporal characteristics of pulses f rom Nd:phosphate glass used as a mode-locked laser oscillator and as an amplifier. The frequency doubled pulses are not t ransform limited (za~, = 46 cm -t , At = 6 ps). The four th harmonic has a spectral bandwidth o f 11 cm -J and is tunable across the full bandwidth o f the second harmonic. Tempera ture tuning characteristics and efficiencies for harmonic generation are described. A comparison is made with the properties of Nd:silicate glass.
منابع مشابه
Femtosecond versus picosecond laser machining of nano-gratings and micro-channels in silica glass.
The ability of 8 picosecond pulse lasers for three dimensional direct-writing in the bulk of transparent dielectrics is assessed through a comparative study with a femtosecond laser delivering 600 fs pulses. The comparison addresses two main applications: the fabrication of birefringent optical elements and two-step machining by laser exposure and post-processing by chemical etching. Formation ...
متن کاملEfficient Second Harmonic Generation of Picosecond Laser Pulses*
For a number of applications it is desirable to frequency double the output from high-power mode-locked ruby and neodymium lasers. Second harmonic generation (SHG) in LiNb03 and KHaPO. (KDP) crystals from picosecond light pulses emitted by a Nd3+:glass laser has previously been studied theoretically and experimentally. 1-3 This letter deSCribes details of an efficient intracavity second harmoni...
متن کاملShielding properties of laser-induced plasmas in ocular media irradiated by single Nd:YAG pulses of different durations.
Shielding of laser pulses by plasmas generated in ocular media has been experimentally investigated using single Nd:YAG laser pulses of different durations, ranging from several nanoseconds (ns) to a few tens of picoseconds (ps), both in saline solution and extracted calf vitreous. At the respective threshold radiant exposures for breakdown in saline (259 mJ/cm2 for 7 ns, 20.5 mJ/cm2 for 220 ps...
متن کاملShielding Properties of Loser-Induced Plasmas in Ocular Media Irradiated by Single Nd:YAG Pulses of Different Durations
Shielding of laser pulses by plasmas generated in ocular media has been experimentally investigated using single Nd:YAG laser pulses of different durations, ranging from several nanoseconds (ns) to a few tens of picoseconds (ps), both in saline solution and extracted calf vitreous. At the respective threshold radiant exposures for breakdown in saline (259 mJ/cm for 7 ns, 20.5 mJ/cm for 220 ps a...
متن کاملOctave-spanning infrared supercontinuum generation in robust chalcogenide nanotapers using picosecond pulses.
We report on infrared supercontinuum generation extending over more than one octave of bandwidth, from 850 nm to 2.35 μm, produced in a single spatial mode from a robust, compact, composite chalcogenide glass nanotaper. A picosecond laser at 1.55 μm pumps a high-index-contrast, all-solid nanotaper that strongly confines the field to a 480 nm diameter core, while a thermally compatible built-in ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2002