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Deformable Mirrors |
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DEM
410 |
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DEM 441
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DEM 460 |
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Multichannel
deformable mirror for information / imaging
optical systems and laser applications |
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Intention |
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Real-time
controlling the
reflective surface
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Real-time compensation of optical distortions,
including atmospheric turbulence, thermal
blooming of laser beams, laser medium
inhomogeneities, etc.
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Dynamic improvement of quality of optical / laser systems up to
diffraction limit, including increase of angular
resolution and sharpness of the imaging,
decrease of laser radiation divergence, etc.
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Real-time stabilization
and
controlling of optical system parameters
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Intracavity forming the laser beams with optimal power distribution,
including Bessel-Gauss ones, TEM00
mode, etc.
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Spectral phase correction and temporal aberrations compensation of the
high-energy femtosecond laser pulses
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Application Fields |
- Imaging
optical
systems,
including astronomical telescopes, confocal and
multiphoton laser scanning microscopes, laser
scanning ophthalmoscopes,
etc.
- Laser
communication and optical location
- Laser cavities
- Optical systems
for forming the femtosecond laser pulses
- Experimental
laser systems for scientific researches
- Design of
novel
optoelectronical devices and systems based on
deformable mirrors
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Material1) |
optical
glass |
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Reflective coating2) |
multilayer
metal-dielectric |
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Working
wave length |
1000 -
1200 nm |
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Regular reflectance |
> 0.995 |
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Light
zone diameter3) |
52 mm |
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Initial
shape of optical surface4)
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flat |
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Flatness
of initial
optical surface (l=632.8 nm) PWR PV-PWR |
≤ l/2
≤ l/4 |
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Surface
quality |
40/20
scratch/dig |
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Control
voltage |
-300
V ... +400 V |
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Number
of control piezoelectric elements5)
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21 |
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Deformations
of reflective
surface (PV) under controlling the
piezoelement #1 U=-300
V
U=+400
V |
-5.2
µm6)
+7.0
µm |
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Deformations
of reflective
surface (PV)
under controlling the
piezoelement #27) U=-300
V
U=+400
V |
-6.2
µm6)
+8.3
µm |
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Deformations
of reflective
surface (PV) under controlling the
piezoelement #108) U=-300
V
U=+400
V |
-5.3
µm6)
+7.0
µm |
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Capacitance
of control elements: separate total |
<
7.5
nF
<
140
nF |
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Electromechanical
hysteresis |
<
15
% |
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Basic
resonance frequency |
1.4
kHz |
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Weight |
<
0.6 kg |
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Operational
temperature |
0о
... +45о
С |
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Overall
dimensions:
diameter
height
(including electrical connector)
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90
mm
65.5
mm |
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Electronic
control unit |
ECU
53 |
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1)DEM 460
deformable mirrors in other materials (Mo,
Si, etc.) are available by special
order.
2)DEM 460
deformable mirrors with other reflective (Cu,
Al,
Ag, Au, etc.) and protective
(Al2O3, HfO2,
etc.) coatings are available by special order.
3)DEM 460
deformable mirrors with other light zones (ellipse,
ring, rectangle, etc.) are available by special
order.
4)DEM 460
deformable mirrors with spherical concave or
convex initial shape of optical surface
are available by special order.
5)DEM 460
deformable mirrors with other arrangements and
number of control piezoelements are available by special order.
6)Mines and plus symbols mean
the opposite deformations of the reflective
surface.
7)Deformations
of reflective
surface under
controlling the
piezoelements #3-9 are the
same.
8)Deformations
of reflective
surface under
controlling the
piezoelements #11-21 are
the same. |
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Basic Advantages |
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High-quality
optical materials and coatings
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Any
spectral range
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High-quality
piezoceramics
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High
optical quality, thermal stability and reliability
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Increased
control deformations of reflective surface
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Low
electromechanical hysteresis
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Possibility
of manual and computer control
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Perfect
design
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Simple
to operate, control and service
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Additional Information |
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V.V. Agafonov and A.G.
Safronov
Efficiency
of objectives with deformable mirrors. 1.
Controlling the focal length and the position of
the focal spot. |
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A.G. Safronov, B.
Tobke and P. Helms
Controlling
the parameters of laser technologies by means of
deformable mirrors. |
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B.S. Vinevich, L.N. Evdokimovich, A.G. Safronov, S.N.
Smirnov
Deformable
mirrors applications into technological CO2-lasers:
2. Intracavity power control and pulse-periodic
modulation of output radiation. |
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V.V. Agafonov, A.G.
Safronov
Controllable
objective with deformable mirrors. |
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O.B. Vyskubenko,
P.I. Kapustin, I.S. Kolokolov, V.I. Masychev,
A.G. Safronov
Application
of deformable mirrors in industrial CO2
lasers.
I. A mirror with a controllable curvature of the
reflecting surface. |
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B.S.
Vinevich, V.M.
Zharikov,
A.G. Safronov
Cooled
and uncooled single-channel deformable mirrors
for industrial laser systems. |
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Andrey G.
Safronov
Bimorph
adaptive optics: elements, technology and design
principles. |
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A.G.
Safronov
Single-channel
adaptive mirrors for laser optics. |
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A.
V. Ikramov, I. M. Roshchupkin, A. G.
Safronov
Cooled
bimorph adaptive mirrors for laser optics. |
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Andrej
V. Ikramov, I. M. Roshchupkin, Andrey G.
Safronov
Investigations
of the bimorph piezoelectric mirrors for use in
astronomical
telescopes. |
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A.V.
Ikramov, S.V. Romanov, I. M. Roshchupkin, A.G.
Safronov, and A. O. Sulimov
Bimorph
adaptive mirror. |
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