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Optics Assemblies |
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CNI design and manufacture of precision
optical components and assemblies. As described
in the customer solutions, we have strong
capability to design and fabricate custom made
optics with variously optical materials. |
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◆Glan
Prisms |
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Glan-Taylor Polarizers
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Material |
a-BBO, Calcite, YVO4 |
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Wavelength Range |
a-BBO: 220-3000nm; Calcite: 350-2300nm; YVO4:
500-4000nm |
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Extinction Ratio |
<5x10-6 |
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Surface Quality |
20/10 scratch and dig |
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Beam Deviation |
< 3 arc minutes |
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Wavefront Distortion |
λ/4@632.8nm |
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Damage Threshold |
>10MW/cm2 |
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Coating |
Single Layer MgF2@1064nm |
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Mount |
Black Anodized |
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Glan-Laser Polarizer |
Glan Polarizer
is made
of two Select-Grade Calcite Prism pair with the prism
interface angles optimized for minimum insertion loss, which
are assembled with Air-Spaced. Glan Laser Polarizer has two
escape windows that allow the rejected beam to escape out of
the polarizer. Normally they can be used in Q-switched laser
cavities and other multiple pass applications.
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Material |
a-BBO, Calcite, YVO4 |
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Wavelength Range |
a-BBO: 220-3000nm; Calcite: 350-2300nm; YVO4:
500-4000nm |
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Extinction Ratio |
<5x10-6 |
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Surface Quality |
20/10 scratch and dig |
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Beam Deviation |
< 3 arc minutes |
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Wavefront Distortion |
λ/4@632.8nm |
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Damage Threshold |
>500MW/cm2 |
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Coating |
Single Layer MgF2@1064nm |
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Mount |
Black Anodized |
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Glan-Thompson
Polarizer |
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Material |
Calcite |
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Wavelength Range |
400-2300nm |
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Extinction Ratio |
<5x10-6 |
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Surface Quality |
20/10 scratch and dig |
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Beam Deviation |
< 3 arc minutes |
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Wavefront Distortion |
λ/4@632.8nm |
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Damage Threshold |
>10MW/cm2 |
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Coating |
Single Layer MgF2@1064nm |
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Mount |
Black Anodized
Aluminum |
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◆Beam
Expander |
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A
beam expander is any optical system designed to increase the
diameter of a laser beam. In most cases, the term is taken
to mean a telescope designed to take a small-diameter
collimated beam input beam and produce a larger diameter
collimated output beam, thus reducing the divergence of the
beam. The beam expander consists of a negative input lens
and a positive objective. The expansion factor is the ratio
of the focal length of the two lenses.
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■ BE Series Beam
Expander for Beam Size of
≤2mm Diameter |
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Specifications |
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BE Series Beam
Expander Holder |
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BES-01 |
BES-02 |
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Dimensions: 75 (L)
×50 (W)
×94 (H)
mm3 |
Dimensions: 75 (L)
×50 (W)
×119 (H)
mm3 |
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■ BEW Series Beam Expander for Beam Size
of 4-10mm Diameter |
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Specifications |
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BEW-2x |
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BEW-3x |
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BEW-5x |
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BEW-10x |
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Note:
These series beam expanders are offered for UV,
visible and infrared lasers respectively. Please
let me know which wavelength you want before
order. |
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◆Variable
Attenuator |
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CNI provide
two kinds of variable attenuators for different
application. The circular variable attenuator
can make the optical
density linearly varies around a 0°-270° circle
for measuring laser energe farthest. As
for the square one, the optical density linearly
varies across the length for measuring laser
energe.
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Circular
Variable
Attenuator |
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Material |
BK7grade A
optical glass, Fused silica |
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Optical
Density Range |
OD0-OD3 |
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Outside Diameter |
Φ54mm±0.25 |
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Dimension |
54*42*67mm |
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Linearity of Density |
±5%@632.8nm |
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Coating |
S1:Ni-Cr-Fe; S2:Boardband AR coating;
incidence angle:0°-15° |
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Clear
aperture |
>80%
diameter |
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Damage
threshold |
30W/cm2 CW |
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Active wavelength |
400-1100 nm |
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Note: Dimension,
wavelength range ,OD or other request are
available upon request. |
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Square
Variable
Attenuator |
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Material |
BK7grade A
optical glass, Fused silica |
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Optical
Density Range |
OD0-OD2 |
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Dimension |
76.2*25.4*2.0mm |
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Linearity of Density |
OD±5% |
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Coating |
S1:Ni-Cr-Fe; S2:Boardband AR coating; incidence angle:0°-15° |
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Clear
aperture |
>80%
diameter |
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Damage
threshold |
30W/cm2 CW |
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Active wavelength |
400-1100 nm |
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