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WSQNA/WBNA
Wavelength range
Transmittance of S Polarization (θ=0° - 45°)
Material
Laser Damage Threshold *
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With a variable beamsplitter, the incident angle of a laser can be changed. The (R:T) ratios can also be modified. This is commonly used to adjust the light intensity of the laser without a variable adjustment of the light intensity or the laser to be stabilized.

◦The beam shift caused by the tilt of the beamsplitter can be removed by using a correcting plate. (See how to use)
◦It can be used for arbitrary polarization. However, the transmittance characteristic depends on the polarization.

Related product
Products
Technical Data
Documents/Downloads
Guide

▶Different size, wavelength and deviation not mentioned on-line or in our catalog are available as custom product upon on request.
W3802
▶We offer the most comprehensive range of beamsplitter holders and stages to select from. Let us know the angle of your choice.
▶This variable attenuator (model SVAB) can be used in a system and is available.
▶Please refer to here for Wavelength Characteristic Data (Reference Data, EXCEL file format).

Attention

▶When using with high power laser, make sure to execute at the end edge of the reflected light.
▶The reflectance properties of the optics may change in a high temperature environment.
▶When adjusting the transmittance, the incident angle may change and cause the light path to shift. To correct this, please use the light path corrector (model WSQNA/WBNA)
▶For a large beam size of 30mm diameter or larger and used it at a high inclination level, the beam can be cut at the reflected area.
▶For “P” polarization use, make sure that the incident angle is at 45 degrees or more.

Common Specifications
MaterialBK7 , Synthetic fused silica
Surface flatnessλ
Parallelism<5″
CoatingBoth surfaces ; Antireflection coating
Surface Quality
(Scratch-Dig)
10−5
Clear apertureCircle that internally connected to 90% of the side length
Effective beam incident diameterEllipsoidal 30×43mm (Angle of inclinaison)
Outline Drawing

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Sample of use

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The variable beam splitter can be used individually. When modifying the incident angle, optics thickness and its refractive properties, a shift may occur in the light path. To reduce this shift, we highly recommend a light path corrector. Please see image below.

◦Place the variable beamsplitter onto a rotation stage to allow an angle adjustment.
◦Install the light path corrector onto a rotating stage.
◦Position the light path corrector at a similar angle with the variable beamsplitter on an opposite side.
◦If the reflected light of the variable beamsplitter is not used, make sure to place a light cut-off material or a beam diffuser at the edge-end of the light.
◦The power of the reflected light from the light path corrector must be cut off at the edge-end of the light.

For part structure, please contact our International Sales Division.
Typical Transmittance Data
■VBS-266 / WSQNA-266

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T: Transmission (S-polarization)
■VBS-355 / WSQNA-355

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T: Transmission (S-polarization)
■VBS-532 / WBNA-532

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T: Transmission (S-polarization)
■VBS-1064 / WBNA-1064

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T: Transmission (S-polarization)
Spec
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Part Number
Add to cart Cart
    JP Yen Stock Qty
WSQNA-50S03-1-266-0/45D
WSQNA-50S03-1-355-0/45D
WBNA-50S03-1-532-0/45D
WBNA-50S03-1-1064-0/45D

266nm

97% (average with respect to wavelength.)

Synthetic fused silica

1J/cm2

355nm

97% (average with respect to wavelength.)

Synthetic fused silica

1J/cm2

532nm

98% (average with respect to wavelength.)

BK7

2.5J/cm2

1064nm

98% (average with respect to wavelength.)

BK7

3.5J/cm2

RoHS  

¥28,600

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US
RoHS  

¥28,600

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US
RoHS  

¥23,000

LOW
RoHS  

¥23,000

CONTACT
US