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China Beam Mirror Suppliers | Customized Beam Combiners from Leading Factory
🔬 Product Overview
A beam combiner is a semi-transmissive mirror that combines two (or more) wavelengths of light into a single optical path through transmission and reflection, respectively. The beam combiner usually transmits infrared light and reflects visible light (beam combiners are used when the infrared CO2 high-power laser uses a helium-neon visible diode laser to straighten the light path).
📐 Product Specifications
- ⚡ Short-wave pass beam combiner (45°): T > 97% @ 960–980nm / R > 97% @ 1020–1040nm
- ⚡ Long-pass beam combiner (45°): R > 95% @ 1041nm / T > 95% @ 1065nm
🏭 Application Areas
✂️ Laser Cutting
🔧 Laser Welding
🛠️ Laser Cladding
🏥 Laser Medical Treatment
⚙️ Production Process
❓ Frequently Asked Questions
Q What is a beam combiner and how does it work?
A beam combiner is a semi-transmissive optical mirror that merges two or more wavelengths of light into a single optical path. It achieves this by transmitting certain wavelengths while reflecting others, allowing precise beam alignment and combination in laser systems.
Q What is the difference between a short-wave pass and a long-pass beam combiner?
A short-wave pass beam combiner transmits shorter wavelengths and reflects longer ones (e.g., T > 97% @ 960–980nm / R > 97% @ 1020–1040nm). A long-pass beam combiner does the opposite — it reflects shorter wavelengths and transmits longer ones (e.g., R > 95% @ 1041nm / T > 95% @ 1065nm).
Q At what angle are these beam combiners typically used?
The beam combiners described in these specifications are designed to operate at a 45-degree angle of incidence, which is the most common configuration for combining or separating laser beams in optical systems.
Q In which industries are beam combiners commonly applied?
Beam combiners are widely used in laser cutting, laser welding, laser cladding, and laser medical treatment. They are essential components wherever multiple laser wavelengths need to be combined into a single, aligned optical path.
Q Why is a beam combiner used with CO2 high-power lasers?
CO2 lasers emit infrared light that is invisible to the human eye, making alignment difficult. A beam combiner allows a visible helium-neon or diode laser to be merged into the same optical path, providing a visible guide beam for accurate alignment while the infrared beam continues through the system.
Q Can beam combiners be customized for specific wavelength requirements?
Yes. Beam combiners can be tailored to specific transmission and reflection wavelength bands depending on the application. Custom coatings and substrate materials allow manufacturers to meet precise performance requirements for various laser and optical systems.



