Lidar filter
LiDAR (Light Detection and Ranging) measures distances and detects targets by emitting laser beams and receiving reflected light. Filters are essential for selecting specific laser wavelengths and suppressing background noise and unwanted light, thereby improving detection accuracy and signal-to-noise ratio.
Specification Snapshot
Isolation
>50dB
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Overview
LiDAR (Light Detection and Ranging) measures distances and detects targets by emitting laser beams and receiving reflected light. Filters are essential for selecting specific laser wavelengths and suppressing background noise and unwanted light, thereby improving detection accuracy and signal-to-noise ratio.
Specifications
| Parameter | Value |
|---|---|
| CWL | 1550nm +0nm~+0.4nm |
| Pass band WL | 1550±1.5 nm |
| Ripple | <0.3dB |
| BW@-0.5dB | >3nm |
| BW@-20dB | <6nm |
| Reflect Band | 1520~1545.5nm&1554.5~1570nm |
| Isolation | >50dB |
| CWL [AOI:15°±0.3°] | 1550nm |
| BW@-0.5dB [CWL:1550nm / AOI:15°±0.3°;@-0.5dB] | >0.13nm |
| BW@-3dB [CWL:1550nm / AOI:15°±0.3°;@-3dB] | >0.45nm |
| BW@-15dB [CWL:1550nm / AOI:15°±0.3°;@-15dB] | <1.2nm |
| AOI [CWL:1550nm] | 15°±0.3° |
| CWL [AOI:10.75°±0.3°] | 1550nm |
| Ripple@Pass Band [CWL:1550nm / AOI:10.75°±0.3°] | <0.3dB |
| BW@-0.5dB [CWL:1550nm / AOI:10.75°±0.3°;@-0.5dB] | >0.15nm |
| BW@-15dB [CWL:1550nm / AOI:10.75°±0.3°;@-15dB] | <1nm |
| AOI [CWL:1550nm] | 10.75°±0.3° |
| CWL [AOI:15°±0.3°] | 905nm |
| BW@-0.5dB [CWL:905nm / AOI:15°±0.3°;@-0.5dB] | >0.13nm |
| BW@-3dB [CWL:905nm / AOI:15°±0.3°;@-3dB] | >0.45nm |
| BW@-15dB [CWL:905nm / AOI:15°±0.3°;@-15dB] | <1.2nm |
| AOI [CWL:905nm] | 15°±0.3° |
| CWL [AOI:10.75°±0.3°] | 905nm |
| Ripple@Pass Band [CWL:905nm / AOI:10.75°±0.3°] | <0.3dB |
| BW@-0.5dB [CWL:905nm / AOI:10.75°±0.3°;@-0.5dB] | >0.15nm |
| BW@-15dB [CWL:905nm / AOI:10.75°±0.3°;@-15dB] | <1nm |
| AOI [CWL:905nm] | 10.75°±0.3° |
Applications
Autonomous driving; drones; robots; meteorological observations; topographic mapping; security surveillance; aerospace.
Key Features
High transmission (>95%); narrow bandwidth (<1 nanometer to +40 nanometers depending on system requirements); deep blocking (outside diameter 4-6 within the detector range); high stability, environmental compatibility and reliability; broad AOI range of 0-35 degrees; low-cost volume manufacturing.
Datasheet
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Supplier Information
Etern Optoelectronics, founded in 2002, is a key deployment of Yongding Group in the optical device field. With subsidiaries in Shanghai, Suzhou, Wuhan, Chengdu, etc., it is a manufacturer specializing in R&D, production, and sales of optical passive chips and devices, laser chips, optical transceivers, and subsystems, forming an integrated platform with a full optical device industrial chain. Through continuous independent innovation, it has mastered technologies such as optical coating, planar lightwave circuits, semiconductor material growth and processing, producing WDM filters, AWG chips, and laser chips. It provides comprehensive solutions for OTN, 5G bearer networks, and data center markets. Emphasizing product compliance and quality, it has established an international standardized quality assurance system, leading in the global WDM market. With sales and service centers in Europe and America, it aims to continually create maximum value for customers.
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