1535 nm eye-safe laser ERDI
ER20 1535nm 20µJ Eye-Safe Erbium Glass Laser for Compact Rangefinders and LiDAR
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Applications
Where this source is used
Eight application families the range is specified into — with the recommended ERDI module shown in each scene, so the scale, mounting envelope and beam path are clear.
Datasheet revision: Rev. A / 2026-10-27. Read the revision note (PDF) — corrected values and document-control status. To get the test record for a specific unit, request the test conditions.
PRODUCT OVERVIEW
ER20 is a compact 1535 nm pulsed laser source based on Er:Yb glass microchip technology, designed for compact rangefinders and LiDAR.
- Pulse energy
- ≥20 µJ
- Repetition rate
- 2.5KHz
- Pulse width
- 5 ns
- Dimensions
- 17×8×7
- Weight
- 6 g
KEY FEATURES
- ✔ 1535 nm Eye-Safe Operation (Class 1)
- ✔ 20µJ Pulse Energy
- ✔ Compact OEM Design
- ✔ High Pulse Stability
- ✔ Long Lifetime
Optical Specifications
| Wavelength | 1535 nm |
|---|---|
| Eye safe | Class 1 |
| Pulse Energy | ≥20 µJ |
| Pulse Width | 5 ns |
| Beam Quality | TEM00 |
| Operation | Pulsed |
| Lifetime | ≥5 million shots |
| Eyesafe | Class 1 |
| Drive pulse width | ≤ 0.3ms |
| Pulse repetition rate | 2.5KHz |
| Pulse stability | 10% |
| Directivity | <0.2° |
| Raw Beam Diameter | 0 .2 mm |
| Beam divergence angle | ＜15 mrad |
| Impact | 1500 G, 0 . 5 ms |
Mechanical, Electrical and Environmental Specifications
| Operating temperature | -45 ℃~+65 ℃ |
|---|---|
| Storage temperature | -55 ℃~+85 ℃ |
| Dimension (mm) | 17×8×7 |
| Weight | 6 g |
| Voltage | 2 V |
| Electric current | 5 A |
| Vibration | 20~2000 Hz/20 G |
Integration Considerations
Review package constraints, electrical requirements and thermal conditions before integration. The driver supply must be matched to the specified voltage and current, and the drive pulse width must remain within the stated limit. For application-specific questions, contact our engineering team with your system requirements.
APPLICATIONS
DOWNLOADS
- Datasheet (PDF) — ER10 / ER20 / ER40 / ER70 family specification
- 3D model (GLB) — open in any 3D viewer or CAD tool
- Outline drawing (STEP) — request from our team
- Integration guide — request from our team
OUTLINE DIMENSION(mm)
Figure 1 Outline Dimensions
Mounting, Interface and OEM / ODM
Mounting and thermal path. The outline drawing above gives the package envelope. Mounting features and the recommended thermal interface are confirmed against the drawing for your build; send the host-side footprint if you need a matched heatsink or bracket.
Trigger and electrical interface. The source is driven by an external driver. Trigger input, harness, connector and timing are defined with the driver and host system, within the drive-pulse width and repetition-rate limits in the table above. Share your interface requirements and we will confirm them for ER20.
OEM / ODM. Package, optical configuration and electrical interface can be reviewed for project-specific programmes, subject to technical feasibility. Scope and review process.
Request a Quote · Ask an Engineer · Request STEP / 2D drawing
Product FAQ
- Is this an eye-safe source?
Class 1 eye-safe at the specified 1535 nm wavelength. - What is the typical use?
Rangefinding, LiDAR, sensing and OEM instrument integration. - Can the package be customised?
See OEM / ODM for the customisation scope and review process.
Where this model fits
The source is only one part of the choice. These pages cover how it is selected for the system it goes into, and what the documents contain:
Interactive 3D Model
Drag to rotate, scroll to zoom. The controlled STEP source is available on request for design release.