1.Product Descriptions:
| Characteristics: | BP1030-45AR, 1030nm Bandpass Filter |
| Type: | Interference type |
| Central Wavelength (CWL): | 1030+-5nm |
| Full Width at Half Maximum(FWHM): | 45nm |
| Peak Transmittance(%) : | >98% (+AR coating) |
| Cut-off depth: | OD2-OD3 |
| Shape: | customized |
| Color: | Silver |
| Surface Quality: | 60/40 |
| Dimension(mm): | Customized ** |
| Thickness(mm): | 0.21-3mm |
| Substrate: | Optical Glass |
| Remark: Spectral range:350-1100nm *Customized capability: 380-2500nm, stock for 10nm intervals. **Common for 86x86mm, 80x80mm, other can customized, max. 300x300mm *** Available for ultra-clear glass,K9,BK7,B270,D2637T, Quartz Glass(Fused Silica) or other specified. | |
2.Measured Spectral Graph – 1030nm Bandpass filter:
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| Picture 1: BP1030-45+AR Spectral Graph measurement |
3.What is typical application for 1030nm Bandpass Filters?
A 1030nm infrared bandpass filter is a precision optical interference filter engineered to selectively transmit a narrow infrared wavelengths centered at 1030nm while providing high rejection of out-of-band wavelengths. Typically, the 1030nm bandpass filters use for a wide range of applications, including fiber amplifiers, optical sensors, optical communication test benches, spectral analyzers, NIR fluorescence detectors, laser rangefinders, laboratory optical testers, and medical diagnostic optics.
4.What are key parameters when choose for a suitable Bandpass Filter?
When selecting a Narrow Bandpass Filter, normally the following factors need to be taken into consideration：
- Central Wavelength (CWL)：CWL is one of key parameter to designate first, it refer to the central wavelength at stable high transmission rate passband.
- Peak or Average Transmittance: typically ≥90%, Higher transmittance might need Anti-reflective(AR) coating.
- Full width at half maximum (FWHM): FWHM refer to the interval between the two wavelength points where the transmittance rate reaches 50%.
- Blocking rate: usually in terms of optical density(OD), OD2-OD3 for standard and higher will be OD4-OD6 per requirement.
- Angle of Incidence (AOI): AOI need to be considered as Interference Filter is angle sensitive, 0° AOI by default, other AOI e.g. 30/45° need to be specified.
- Physical and environmental requirement: Substrate type, dimensions and thickness, surface quality, and environmental durability.
Shenzhen Hengda Liyuan Optoelectronics introduced advanced optical technology that apply depositing nano-materials through ion-assisted evaporation onto a multilayer hard film in a high vacuum environment which coating layer is firm and has good tightness, and small bandwidth drift. Liyuan optoelectronics have been focus on optical coating for more than 17 years and offer one-stop optical filters solution including Narrow Bandpass Filters, IR cut-off Filters, Longpass & Short Filters, Notch Filters, ND filters, Star filters and Optical sapphire block.
