1535 nm eye-safe laser ERDI
ER200 1535nm (1.54 µm) 200µJ Eye-Safe Erbium Glass Microchip DPSS Laser
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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
ER200 is a compact 1535 nm pulsed laser source based on Er:Yb glass microchip technology, designed for LiDAR and laser ranging systems.
Where it is specified: Specified as the laser source in the ERDI LRF0405C, LRF0609C, LRF0610C and LRF0612C 1535 nm laser rangefinder modules.
- Pulse energy
- ≥200 µJ
- Repetition rate
- 1~10Hz
- Pulse width
- 5 ns
- Dimensions
- 21×8×6.8 mm³
- Weight
- 7 g
KEY FEATURES
- ✔ 1535 nm Eye-Safe Operation (Class 1)
- ✔ 200µJ Pulse Energy
- ✔ Compact OEM Design
- ✔ High Pulse Stability
- ✔ Long Lifetime
Optical Specifications
| Wavelength | 1535 nm |
|---|---|
| Pulse Energy | ≥200 µJ |
| Pulse Width | 5 ns |
| Beam Quality | TEM00 |
| Operation | Pulsed |
| Lifetime | ≥1 million shots |
| Drive pulse width | ≤2.4 ms |
| Pulse repetition rate | 1~10Hz |
| Pulse stability | 10% |
| Raw Beam Diameter | 0 .3 mm |
| Beam divergence angle | ≤ 8 mrad |
Mechanical, Electrical and Environmental Specifications
| Operating temperature | -40 ℃ ~ +65 ℃ |
|---|---|
| Storage temperature | -55 ℃ ~+ 75℃ |
| Dimension (mm) | 21×8×6.8 mm³ |
| Weight | 7 g |
| Voltage | 2 V |
| Electric current | 10 A |
| Shock | 1500 G, 0.5 ms |
| 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)
- 3D model (GLB) — open in any 3D viewer or CAD tool
- Outline drawing (STEP) — request from our team
- Integration guide — request from our team
Product Description
ER200 1.54μm / 1535nm 200µJ Eye-Safe Erbium Glass Microchip DPSS Laser
ER200 is a high-energy member of ERDI’s 1535nm eye-safe erbium glass microchip laser family, aimed at OEMs who need a compact, board-level source for long-range LiDAR, laser rangefinding, target designation and even 1.5µm fiber-optic links. Operating at the 1535nm wavelength, it sits inside both the eye-safe band (corneal absorption dominant, lower retinal risk) and the atmospheric transmission window, so it combines safety with low-loss propagation in outdoor paths.
The laser uses a co-doped Er³⁺/Yb³⁺ phosphate glass gain medium pumped by a semiconductor diode, packaged as a microchip DPSS (diode-pumped solid-state) laser. Typical single-pulse energy is ≥ 200µJ with adjustable 1–10Hz repetition rates, giving enough peak power to support 3–8km ranging on standard targets and up to about 15km on extended high-reflectivity targets under good visibility.
Beam quality is one of the ER200’s key strengths: divergence is around 0.3mrad with M² < 1.3, which means a tight, near-diffraction-limited spot at long range. This helps maintain high irradiance on target and a strong echo at the receiver, improving signal-to-noise ratio and measurement reliability in long-distance outdoor scenes. Combined with nanosecond-level pulse width, it is well suited for high-precision time-of-flight ranging and LiDAR point-cloud generation.
For deployment in harsh environments, ER200 is specified to operate across roughly −40°C to +65°C without active TEC temperature control. The microchip structure and robust glass gain medium give good resistance to shock and vibration, and the small, lightweight package can be mounted directly on laser rangefinder or LiDAR driver boards, leaving more room for optics and control electronics.
In typical system architectures, ER200 works as the primary pulse source in 1535nm rangefinder modules, UAV and airborne LiDAR payloads, vehicle or shipborne EO/IR heads, and fixed-site perimeter or mapping systems. The 1535nm wavelength reduces background interference and allows systems to meet eye-safety requirements more easily than 1064nm solutions, while the 200µJ energy level provides the headroom needed for multi-kilometer-class performance.
OUTLINE DIMENSION
Figure 1 Outline Dimensions(mm)
Operating Instructions
- Match the laser driver to the ER200 laser.
The laser driver power supply must be properly matched to the laser.
The typical load voltage of the ER200 is < 2 V, with an operating current of 10 A, pulse width ≤ 2.4 ms, and a repetition rate of 10 Hz. For the exact operating parameters, please refer to the attached factory test report.
The laser driver power supply must meet these requirements; otherwise, the laser may fail to operate properly or could be overloaded and permanently damaged. Therefore, before wiring, carefully check the laser specification sheet and confirm that the laser is compatible with the selected driver. - Always disconnect power before wiring.
Before making any connections, make sure the power is switched off and completely isolated.
When wiring, carefully check the positive and negative terminals of the laser and ensure correct polarity. After the wiring is completed, perform a thorough inspection to confirm that all connections are correct, in order to avoid short circuits, reverse polarity, and other faults. At the same time, make sure all terminals are firmly secured to prevent poor contact due to loose wiring. - Set operating parameters according to the factory test report.
After confirming that the wiring is correct, set the corresponding parameters on the driver according to the attached factory test report.
Once the parameters are correctly set, turn on the driver; the laser should then operate normally. - Keep the laser output window clean.
Take care to keep the laser output window clean and do not touch the window surface.
If contamination occurs, clean the window thoroughly beforeoperating the laser.
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 ER200.
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
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ER200