Spectral broadening in femtosecond laser written waveguides in chalcogenide glass

نویسندگان

  • Mark A. Hughes
  • Weijia Yang
  • Daniel W. Hewak
چکیده

Mark A. Hughes,* Weijia Yang, and Daniel W. Hewak Toyota Technological Institute, 2-12-1, Hisakata, Tempaku, Nagoya 468-8511, Japan Université de Paris Sud 11, Institut de Chimie Moléculaire et des Matériaux d’Orsay, Laboratoire de Physico-Chimie de L’Etat Solide, UMR CNRS-UPS 8182, Bât. 410, 91405 Orsay Cedex, France Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, United Kingdom *Corresponding author: [email protected]

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

Nanoindentation studies on waveguides inscribed in chalcogenide glasses using ultrafast laser

Optical straight waveguides are inscribed in GeGaS and GeGaSSb glasses using a high repetition-rate sub-picosecond laser. The mechanical properties of the glasses in the inscribed regions, which have undergone photo induced changes, have been evaluated by using the nanoindentation technique. Results show that the hardness and elastic modulus of the photo-modified glasses are significantly lower...

متن کامل

Highly efficient relief diffraction gratings inscribed on a chalcogenide bulk glass by a femtosecond laser

Direct laser writing has been already demonstrated for the fabrication of under surface “buried” 3D mid-IR waveguides in chalcogenide glasses by employing a large photo-induced refractive index change in the features formed in the path of the focused beam from a short pulse laser. In this paper, we report on direct laser writing of relief diffraction gratings with periods of 6, 14 and 24 μm int...

متن کامل

Stimulated Brillouin scattering amplification in centimeter-long directly written chalcogenide waveguides.

Stimulated Brillouin scattering (SBS) amplification is obtained in directly written As2S3 channel waveguides. Centimeter-long waveguides were written using a Ti:sapphire femtosecond laser, operating at a central wavelength of 810 nm. The cross-section of the waveguides was of 4  μm×1  μm. A Brillouin frequency shift of 7.5 GHz is observed, in general agreement with corresponding previous studie...

متن کامل

Characterization of Femtosecond Laser Written Waveguides for Integrated Biochemical Sensing

Fluorescence detection is known to be one of the most sensitive among the different optical sensing techniques. This work focuses on excitation and detection of fluorescence emitted by DNA strands labeled with fluorescent dye molecules that can be excited at a specific wavelength. Excitation occurs via optical channel waveguides written with femtosecond laser pulses applied coplanar with a micr...

متن کامل

Polarization-dependent spectral broadening of femtosecond pulses in silicon waveguides

We investigate the polarization dependence of the spectral broadening of femtosecond pulses inside silicon waveguides by using finite-difference time-domain (FDTD) simulations. Our FDTDmodel includes the anisotropic dependency of predominant nonlinear effects in silicon: Kerr effect, two-photon absorption, and Raman effect. In addition, free-carrier absorption and free-carrier dispersion effect...

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:

دوره   شماره 

صفحات  -

تاریخ انتشار 2009