Andrey%20V.%20Zamyatin

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Femtosecond Ultra-Broadband Light Sources
Booth ? 6166

• Andrey V. Zamyatin

4119 Twilight Ridge, San Diego, CA 92130, USA
Tel [phone] Fax (858)
630-2376 E-mail sales_at_dmphotonics.com URL
www.dmphotonics.com
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Introduction
Two broadband supercontinuum sources
Jibe- white light continuum generator (TSapphire
laser)
Cannon- based on ultrafast fiber laser source
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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

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Applications

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

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Kerr effect

• n(I)n0 n2I
• n0- normal reflective index of the medium
• n2- the nonlinear reflective index
• Optical phase ?L n/c

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Kerr effect

• E(t) cos (?t-kx) - electic field of a laser pulse
• k ?n/c wavenumber

Taylor expansion around the peak of the ultrafast
pulse
E(t) cos((? ?t)t - kx)
? - depends on the nonlinear refractive index,
the pulse width, peak of power and distance
travelled
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Generation of White light
Red wavelengths of the white light pulse travel
faster than blue wavelengths
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Chirp on an ultrashort pulse
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Jibe - WLCG
450-900 nm 350-750 nm
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Spectrum of white light continuum
Intensity
Wavelength, nm
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Pump-probe measurements
WLCG can be easily integrated to the pump-probe
system
WLCG
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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
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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.
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Typical output spectrum
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Applications

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

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Specification

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

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Ultrafast Applications Hatteras- pump probe
spectrometer Beacon- fluorescence
up- conversion spectrometer Jibe- white light
continuum generator
www.dmphotonics.com
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• Visit our booth 6166 to discuss your applications
  and requirements