INTERFERENCE FILTER
Keywords:
Keywords:
INTERFERENCE FILTER
Basic Parameters
An optical film that uses the interference principle to allow only light in a specific spectral range to pass through. It usually consists of multiple layers of thin film. Common interference filters are divided into two categories: cut-off filter and bandpass filter. The cut-off filter can divide the spectral range into two regions, the light in one region cannot pass through (the cut-off region), and the light in the other region can pass through fully (the passband region). Typical cut-off filters have short-pass filters (allowing only short-wave light to pass through) and long-pass filters (allowing only long-wave light to pass through), which are multi-layer dielectric films with a periodic structure composed of alternating high-refractive index layers and low-refractive index layers.
Technical Specification:
|
Specifications |
Colored Glass Filters |
|
Material |
Neutral Density Glass |
|
Dimension Tolerance |
+0.0/-0.1mm |
|
Clear Aperture |
>80% |
|
Center Wavelength Deviation |
±2nm |
|
FWHM |
10nm |
|
Peak Transmittance |
>45% |
|
OD |
<0.1%@200-1100nm |
|
Center Wavelength Drift |
<0.02nm/℃ |
Solutions
Scientific research and testing field
Aviation field
Medical cosmetology field
Laser field
Related Products
YVO4
Yttrium alumate (YVO4) is an excellent birefringent crystal material, which is a negative uniaxial crystal. The crystal has good physical and mechanical properties, wide light transmission range, high transmittance, large birefringence coefficient and easy processing. YVO4 crystal can replace ice SPAR and crystal red stone in the field of optical fiber communication, is the key material in optical communication passive devices such as optical isolators, circulators, polarization splitters, polarizers.
Caicite
Caicite Crystal is a kind of natural birefringent material, in the shape of diamond, birefringence coefficient is large, through the spectrum is wide, from visible to near infrared has relatively good optical properties. Although the mechanical strength of Iceland SPAR material is soft and easy to scratch, it still does not affect its wide application in polarization devices. Caicite is mainly used in Glan POLARIZER.
LiNbO3
LiNbO3 is widely used in optical fiber communication as a birefringent crystal. The crystal has good physical and mechanical properties, wide light transmission range, high transmittance, easy processing, and lower material cost than other materials. Lithium niobate crystals are widely used in passive optical communication devices such as optical isolators, circulators, polarization splitters, polarizers, etc
POLARIZING BEAM SPLITTER（PBS）
The polarization splitter prism is plated with a multilayer film structure on the inclined surface of the right Angle prism, and then glued into a cube structure. By taking advantage of the property that the transmission rate of P-polarized light is 1 and that of S-polarized light is less than 1 when the light incident at Brewster Angle, the P polarization component can be completely penetrated after the light passes through the multilayer film structure at Brewster Angle for many times. And most of the S polarization component is reflected. Note: Specific bands and extinction ratios can be customized according to customer requirements.
Product Inquiry
*Note: Please be sure to fill in the information accurately and keep the communication open. We will contact you as soon as possible.
Email Address