Efficient noncollinear parametric amplification of weak femtosecond pulses in the visible and near-infrared spectral range.

نویسندگان

  • V Krylov
  • O Ollikainen
  • J Gallus
  • U Wild
  • A Rebane
  • A Kalintsev
چکیده

We report measurement of efficient amplification of weak femtosecond supercontinuum seed pulses by use of a noncollinear optical parametric process in BBO crystal pumped with 150-fs pulses from a frequency-doubled regenerative-amplified Ti:sapphire laser at 390nm . The highest amplification factor, 10(8) , was achieved for 3x10(-16)J energy seed pulses at wavelength of 560nm.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Femtosecond noncollinear and collinear parametric generation and amplification in BBO crystal

We perform comprehensive theoretical and experimental analysis of ultrafast noncollinear and collinear parametric generation and amplification in type-I phase-matched BBO crystal, pumped with 390 nm wavelength, 150-fsduration pulses from a frequency-doubled regenerativeamplified Ti:sapphire laser. We investigate conditions for group-velocity-matched generation and amplification, seeded with whi...

متن کامل

High-repetition-rate near-infrared noncollinear ultrabroadband optical parametric amplification in KTiOPO4.

We report efficient noncollinear optical parametric amplification (NOPA) of ultrabroadband near-IR pulses tunable in the 1.1-1.5 μm range at a repetition rate of 250 kHz. Improved generation of smooth near-IR continua (extending over ~1.0-1.6 μm) at 250 kHz was achieved by weakly focusing ~20% of the 1 W driving laser beam into a sapphire plate with longer focal length lenses than previously re...

متن کامل

Generation of broadly tunable sub-30-fs infrared pulses by four-wave optical parametric amplification.

We report on the generation of sub-30-fs near-IR light pulses by means of broadband four-wave parametric amplification in fused silica. This is achieved by frequency downconversion of visible broadband pulses provided by a commercial blue-pumped beta-barium borate crystal-based noncollinear optical parametric amplifier. The proposed method produces the IR idler pulses with energy up to ∼20 μJ a...

متن کامل

Visible-pulse generation in gain crystal of near-infrared femtosecond optical parametric oscillator.

An optical parametric oscillator (OPO) based on magnesium-oxide-doped periodically poled lithium niobate (MgO:PPLN) is demonstrated to deliver visible femtosecond pulses, which were created through the intra-cavity nonlinear interactions within the PPLN itself. The signal from the OPO produces femtosecond pulses in the near-infrared region tunable from 1050 to 1600 nm. Visible femtosecond pulse...

متن کامل

Mathematical Modeling of Strong Ground Velocity Pulses using Spectral Decomposition and Forward Directivity Effects

Introduction The nature of near-field earthquake records is very complicated and uncertain. Due to this complexity, the prediction of the real structural responses has become very difficult. Based on the analysis of the physical characteristics of near-field records, it is possible to use the simplified mathematical models. Near-field ground motions which are often associated with a progressiv...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Optics letters

دوره 23 2  شماره 

صفحات  -

تاریخ انتشار 1998