In HOLO/OR we believe our
customers success is our own success, thus we keep our NRE for custom
solutions to be probably the lowest priced in the industry. This issue
presents our latest customer inspired products.
HOLO/OR’s
M-Shaper, is a diffractive optical element (DOE) used to create a
unique 2D M-shaped intensity profile, with sharp edges in a specific
work plane.
The M-Shaper’s optical function is not possible by conventional
reflective or refractive optical elements.
The typical application is to create a uniform exposure over scanned
lines. That is, when scanning a line with a regular Gaussian or even
Top-Hat spot the center gets over exposed (influencing the heat
distribution during laser material processing).
The M-Shape is the mathematical shape that gives a uniform exposure
over the line when scanned.
This provides higher quality of the process &
enables more flexibility in the system configuration.
For example, it allows optimization of the intensity profile, and image
size, without changing the laser, fiber cable and/or scanning optical
head.
The benefits of our optimized M-shaped intensity profile include:
Uniform
exposure over the scanned line
“Cleaner”
results with scanned lines in almost any process
Enables
very strong weld seams
We have added 11 new designs which are now available for
any wavelength.
Cost reduction in multi level (high eff.)
elements.
HOLO/OR
improved its design and fabrication yield of multi-level DOEs on
large wafers, and now offers multi level parts as square elements.
The square element can optionally be mounted to a round adaptor.
By utilizing the
advantageous economy-to-scale of photolithography and RIE
fabrication process of DOEs, significant price reduction can
be achieved by moving from fabricating in batches to fabricating in
large wafers.
High efficiency quality at close to binary DOE prices.
HOLO/OR released a new line
of shapers that generate very small Top-Hat Line images.
One axis of the input is reshaped to a line
with Top-Hat profile, while input in the other axis keeps traveling
undisturbed. In combination with a lens this will generate a thin line
with a Top-Hat profile in the long axis and a Gaussian profile in the
short axis
Benefits of the designs
include:
Only x1.5 diffraction limited
line length
High Peak Power
Short transfer region
Attractive price
The available standard designs are optimized
for input beams diameter between 2-10 [mm].
For applications as
metrology and sensitive material processing, HOLO/OR designed a
compact universal module for blocking undesired spots of Multi-Spots
or parasitic energy of
Homogenizers. The module contains 6 lenses and a mask/aperture in the
middle. Each DOE design requires a certain mask/aperture according to
customer’s specs.
Parameters
and features of the module:
Max input beam diameter = 12 [mm]
Max divergence/full angle of DOE
for 12 [mm] input beam dia. = 5 [deg] @ 694 [nm].
Input beam smaller than 12 [mm]
enables larger than 5 [deg] full angle for DOE
Module length = 90 [mm] (not
including DOE and focusing lens)
To answer the demand for fine-tuning
abilities of various output parameters when using a DOE, as: shape/spot
size, separation/divergence angle, etc. HOLO/OR
designed a compact variable beam tuner, optimized for use wit
