Innovative Smart Brewster Windows Integrated with Microelectronics, Allowing Real-Time Monitoring and Control of Optical Properties Via Software Interface

• Customization: Available
• After-sales Service: Yes
• Warranty: 1 Year
• Model NO.: FSOW
• Usage: Lighting, Optical, Photography
• Thickness Range: 0.5mm-100mm
• Color: Transparent
• Type: Windows
• Material: Glass
• Angle of incidence: 45°
• Shape: Round
• Certification: ISO, CE
• Customized: Customized
• Model No: Fsow
• Clear Aperture: >90%
• Surface Quality: 40/20 or Better
• Coating: Customized
• Transport Package: Box
• Specification: Customized
• Trademark: FUSHI
• Origin: China
• Production Capacity: 2000pieces/Month
• Package Size: 20.00cm * 20.00cm * 20.00cm
• Package Gross Weight: 1.000kg

Product Description

Product Description

Brewster windows are optical components with unique properties, designed based on Brewster's law. When unpolarized light strikes the interface between two different media at the Brewster angle, the reflected light becomes completely linearly polarized, and the reflected and refracted rays are perpendicular to each other. Brewster windows take advantage of this phenomenon and are typically made from specific optical materials, with precisely processed surfaces to ensure that light enters at the Brewster angle.

Specification

PRODUCT NAME	Optical Window
DIAMETER	0.2-300mm
THICKNESS	0.1-100mm
DIMENSION TOLERANCE	+/-0.1mm or +/-0.02mm
SURFACE QUALITY	60/40, 40/20,20/10 or better
CLEAR APERTURE	>85%, >90%
COATING	AR, BBAR or Custom

Mechanical and Chemical Properties

From a material standpoint, Brewster windows can be fabricated from various optical substances such as glass and quartz. Each material offers distinct optical characteristics—glass provides good optical homogeneity and lower cost, while quartz delivers higher refractive index and superior chemical stability, making it suitable for applications demanding high optical performance. During manufacturing, precise control over the window's thickness, surface flatness, and angular accuracy is essential to ensure accurate incidence at the Brewster angle.

Brewster windows find extensive use in laser technology. In lasers, they often serve as part of the resonant cavity, helping to control the polarization state of the emitted beam. By positioning the Brewster window so that the laser beam strikes it at the Brewster angle, reflection losses are minimized, thereby enhancing output efficiency. Since the reflected light is linearly polarized, these windows also enable selective control over the laser's polarization direction, meeting diverse application requirements for polarization characteristics.

In spectroscopy, Brewster windows play a crucial role as well. When used in spectrometers, they help reduce stray light interference, improving measurement accuracy and spectral resolution. As the reflected light is polarized while stray light typically remains unpolarized, polarization-based filtering techniques can effectively distinguish and eliminate unwanted signals, resulting in cleaner and more reliable spectral data.

Company Profile

FUSHI OPTICS

Tianjin Fushi Optics Co., Ltd. is a comprehensive optoelectronic enterprise integrating R&D, production, sales, and after-sales service. Since its establishment in 2012, the company has been dedicated to technological innovation and industrial application in the field of optical components, with its manufacturing base located in China's core optical industry zone. The product portfolio covers a full range of optical basic components, including lenses, prisms, mirrors, optical windows, and filters, with particular technical expertise in the design and manufacturing of diffraction gratings.  

 

In 2017, Fushi Optics established a professional optical laboratory in Dongli District, Tianjin, committed to integrating optical theoretical research with engineering practice. After years of technical accumulation, the laboratory has gained wide academic recognition for its research achievements in spectral analysis, precision optical processing, and other fields, forming an integrated "industry-academia-research-application" technological innovation system. It continues to provide high-performance optical solutions for the optoelectronic industry.

Packing & Delivery

We attach great importance to every detail in production and communication. Should you have any questions, suggestions, or comments, please do not hesitate to share them with us. Your feedback is invaluable in our pursuit to become a worthy, trusted, and reliable supplier. Thank you for your visit.

FAQ

Q: How can I get samples from you?
A: Just send us your requirements, and we will send samples accordingly. 
 
Q: How long is your delivery time? · 
A: Regarding inventory, it is 3 working days;For customized one, it's about 15-25 working days, depending on exact quantity and order date. 
 
Q: Can I customize the products based on my requirements?
A: Yes, we can customize the material, specifications and optical coating for your optical components as per your requirements.

Q: Are you a factory? 
A: Yes, we are a professional manufacturer of optical components. We have more than 20 years of experience in optical cold working.
 
Q: How do you control the quality?
A: More than four times of quality inspection during the production process; we can provide the Quality Test Report.