Booth № 6166 Femtosecond Ultra-Broadband Light Sources Andrey V. Zamyatin

4119 Twilight Ridge, San Diego, CA 92130, USA Tel:: (858) 876-3133 Fax:: (858) 630-2376 E-mail:: [email protected]

URL:: www.dmphotonics.com

Introduction

Two broadband supercontinuum sources Jibe - white light continuum generator (T:Sapphire laser) Cannon - based on ultrafast fiber laser source

Introduction

  The generation of broadband supercontinuum spectra by injection of high-power ultrashort pulses into nonlinear optical media has been a subject of intensive research When a high-intensity ultrashort pulse is focused into a transparent medium, a white light continuum ranging from ultraviolet to infrared is generated

Applications

     optical parametric amplification an optical metrology an optical coherence tomography materials characterization pump-probe measurements

Kerr effect

n(I)=n 0 + n 2 I+… n 0 - normal reflective index of the medium n 2 - the nonlinear reflective index Optical phase: ωL n/c

Kerr effect

E(t) cos (ωt-kx) pulse - electic field of a laser k= ωn/c –wavenumber Taylor expansion around the peak of the ultrafast pulse: E(t) cos((ω+

ξ

t)t - kx) ξ - depends on the nonlinear refractive index, the pulse width, peak of power and distance travelled

Generation of White light

Red wavelengths of the white light pulse travel faster than blue wavelengths

Chirp on an ultrashort pulse

Jibe

- WLCG

Spectral coverage Nonlinear material Jibe S Jibe C

450-900 nm 350-750 nm Sapphire CaF 2

Spectrum of white light continuum Wavelength, nm

Pump-probe measurements

WLCG can be easily integrated to the pump-probe system Femtosecond laser R R R R

Probe Beam

R

Pump Beam

Chopper R B.S.

Harmonic Generator / OPA R WLCG R S D R F.O.

Pump-probe measurements

The result is a plot of time delay vs. absorption/ transmission The typical three-dimensional data example of Ni(II) tetraphenyltetrabenzoporphyrin (NiTPTBP) in benzene

Cannon –ultra-broadband light source Ultra-Broadband Light Source. Based on our ultra fast fiber laser source. This system provides a turnkey, portable source of broadband laser pulses without requiring any user-adjustments to the fiber coupling.

Typical output spectrum

Applications

    telecommunication optical Coherence Tomography optical Component Testing flourescence Spectroscopy of Biological Markers

Specification

    Optical Spectrum covers 1000 - 1900 nm Average Output Power > 80 mW Repetition Rate 50 - 70 MHz Head size: 180x210x70

www.dmphotonics.com

Ultrafast Applications: Hatteras pump probe spectrometer Beacon fluorescence up conversion spectrometer Jibe white light continuum generator

Visit our booth 6166 to discuss your applications and requirements