Octavius-85M Ti:Sa oscillator0 pages
Octavius-85M: The 85 MHz, 6 fs Ti:Sapphire Oscillator
The Fastest Commercially Available Laser
MenloSystems’ Octavius-85M Ti:Sapphire laser offers the broadest spectrum
commercially available today. The spectrum of this laser system is well-suited for
amplifier seeding, particularly in optical parametric chirped pulse amplifiers
(OPCPA), as well as for attosecond pulse generation or use in pump/probe
experiments. In addition, this version of the Octavius can also be used in linear and
nonlinear biological probing and imaging applications.
Technology
The Octavius-85M laser cavity incorporates
dispersive octave-spanning mirror pairs,
which are necessary for high-precision
group-delay control over an entire octavewide
bandwidth. During the fabrication
process of these unique mirror pairs, more
than 100 individual layers are deposited on
each surface, thereby guaranteeing wellbehaved,
smooth pulse dispersion.
To create such short pulses, the spectral
bandwidth must exceed that of the gain
medium in the Ti:Sapphire laser. However,
the high intensity of the short pulses
induces self-phase modulation (SPM),
which creates additional intracavity
spectral broadening beyond that of the
gain medium in the Ti:Sapphire laser.
Thus, the uniquely engineered cavity of the
Octavius-85M exploits the interplay
between the strong SPM in the Ti:Sapphire
crystal and the dispersion generated by
the mirror pairs to generate stable, ultrashort
pulses that cannot be produced
using standard cavity designs.
Features
•Unique Octave-Spanning Mirror Pair
•Robust Design with Compact Footprint
•Temperature and Environmentally
Stabilized Housing
•Optical Linear Encoder System with
1 ìm Resolution
Applications
•Phase-Sensitive Nonlinear Optics
•Amplifier Seeding, Particularly OPCPA
•Pump-Probe Experiments
•Biological Probing and Imaging
•Attosecond Pulse Generation
600-1200 nm
The unique dispersive octave-spanning
mirror pairs used in the cavity of
the Octavius-85M were developed
in close collaboration with Prof.
Franz X. Kärtner at MIT.
700 800 900 1000 1100
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-25
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-15
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-5
0
PSD/PSD
max
(dB)
wavelength (nm)
Output Spectrum of the
Octavius-85M-HP