beamsplitter Plate

Beamsplitter Plate

1. Features

  • High Reflectance and Transmission: The beamsplitter plate offers excellent reflectance and transmission properties, making it suitable for various optical systems.
  • Precise Coating Technology: Coatings such as S1 single or broadband wavelength beamsplitter coatings ensure optimal performance at different wavelengths.
  • Superior Material Selection: Constructed from BK7 and fused silica, providing excellent durability and optical clarity.
  • Flatness and Surface Quality: Maintains flatness of λ/4 and a surface quality of 60-40, ensuring minimal optical distortion.
  • Wide Range of Wavelengths: Available for a broad spectrum of wavelengths from 450 nm to 1200 nm, supporting diverse applications.

2. General Description

Shape Optics Technologies Pte Ltd (SOT) offers high-performance Beamsplitter Plates designed to divide a single beam into two distinct beams with precise control over transmission and reflection. These plates are fabricated from high-quality BK7 or fused silica, ensuring exceptional optical clarity and durability for demanding applications. The beamsplitter plate reflects a portion of the incident beam, transmits the remaining portion, and absorbs a small portion, enabling efficient beam manipulation for various optical systems.

With their ability to handle a broad range of wavelengths and specialized coatings, these beamsplitter plates are ideal for optical systems that require precise light division and minimal signal loss. The product is coated with either an S1 single or broadband wavelength coating, with S2 AR coating options available to optimize the performance across specific wavelength ranges. The flatness is guaranteed to be λ/4, with a surface quality of 60-40, ensuring minimal interference with the optical path. These beamsplitter plates are engineered for high-performance systems and are a crucial component in applications ranging from imaging systems to laser setups.


3. Spectrum Transmission Curves

The spectrum transmission curves for our beamsplitter plates can be customized according to specific requirements. If standard components do not meet your needs, SOT offers customized solutions tailored to your application. Please contact us for further details.


4. Coating Quality

  • Adhesion Test: The coating adheres to MIL-C-675C military standards, and an adhesion test is performed using tape that meets LT-90 specifications. After three vertical removals of the tape, no blistering or peeling occurred, ensuring strong adhesion.
  • Temperature Test: In compliance with MIL-C-675C specifications, test pieces are subjected to extreme temperature conditions of -62±1°C and 71±1°C. After two hours at room temperature (16°C-32°C), the adhesion test confirmed no detachment of the film.
  • Abrasion Resistance Test: The abrasion resistance test follows MIL-C-675C and CCC-C-440 standards. Using a gauze tester, a force of 1.0 lbs (0.45 kg) is applied 25 times with gauze widths of 1/4 inch (6.4mm) and 3/8 inch (9.5mm), ensuring no damage to the film surface.
  • Humidity Test: In accordance with MIL-C-675C specifications, the test pieces were exposed to a temperature of 49±2°C and 95%-100% humidity for 24 hours. No peeling, scratches, or defects were observed after the test.
  • Solvent and Cleaning Test: Following MIL-C-675C standards, acetone and alcohol were applied at room temperature (16°C-32°C) for 10 minutes each. After air drying and cleaning with a cotton cloth soaked in alcohol, no damage to the film surface was observed.
  • Salt Spray Test: After 100 hours in a 35°C environment with 5% saltwater concentration, the film showed no signs of damage, demonstrating resistance to corrosive environments.

5. Standard Specifications

The beamsplitter plates are manufactured with the following specifications:

Wavelength (nm)T/R RatioSize (mm)Product Code
532T/R = 50/50 ±2%Ø25.4 x 2CBP-532-50-01
632T/R = 40/60 ±2%Ø25.4 x 2CBP-632-40-01
808T/R = 30/70 ±2%Ø25.4 x 2CBP-808-30-01
1064T/R = 20/80 ±2%Ø25.4 x 2CBP-1064-20-01
1550T/R = 80/20 ±2%Ø25.4 x 2CBP-1550-80-01
450-650T/R = 25/75 ±3%Ø25.4 x 2CBP-VIS-25-01
450-650T/R = 30/70 ±3%Ø25.4 x 2CBP-VIS-30-01
450-650T/R = 50/50 ±3%Ø25.4 x 2CBP-VIS-50-01
450-650T/R = 70/30 ±3%Ø25.4 x 2CBP-VIS-70-01
650-900T/R = 50/50 ±3%Ø25.4 x 2CBP-650-900-50-01
900-1200T/R = 50/50 ±3%Ø25.4 x 2CBP-900-1200-50-01

6. General Applications and Examples

The Beamsplitter Plate from SOT is an essential component in optical systems, used primarily to divide a single incident light beam into two separate beams. This division is crucial for applications where simultaneous or split beam analysis is required, such as:

  • Optical Systems: Used in laboratory settings and optical research for beam separation and analysis.
  • Laser Systems: Ideal for applications in laser scanning, fiber optics, and beam path control where precision light division is essential.
  • Imaging Systems: Employed in split-beam microscopy or multi-beam analysis, enabling the division of light into multiple paths for parallel processing or comparison.

Custom options can be tailored for specific wavelength ranges, making these beamsplitter plates versatile and adaptable for various industries, from telecommunications to precision laser systems.


7. SOT Strengths and Capabilities

Shape Optics Technologies (SOT) is renowned for its cutting-edge optical components that meet rigorous performance standards. Specializing in the production of beamsplitters, lenses, and optical coatings, SOT offers a unique combination of technical expertise and customization options. With a strong focus on quality assurance and customer satisfaction, SOT delivers products that consistently meet the needs of industries including laser optics, telecommunications, and scientific research. SOT’s advanced manufacturing processes and strict adherence to industry standards ensure reliable performance, durability, and high precision for every application.


8. Standard Products

Wavelength (nm)T/R RatioSize (mm)Product Code
532T/R = 50/50 ±2%Ø25.4 x 2CBP-532-50-01
632T/R = 40/60 ±2%Ø25.4 x 2CBP-632-40-01
808T/R = 30/70 ±2%Ø25.4 x 2CBP-808-30-01
1064T/R = 20/80 ±2%Ø25.4 x 2CBP-1064-20-01
1550T/R = 80/20 ±2%Ø25.4 x 2CBP-1550-80-01

Customization options are available upon request. Please contact us for further details.