Detailed ER2000 Specifications
The technical material below is retained for this model only. Do not transfer a range, pulse, interface, mechanical or safety value from another 1535 nm product.
TECHNICAL SPECIFICATIONS
|
Model |
ER2000 |
|
Laser Wavelength |
1535nm |
|
Eye safe |
Class 1 |
|
Pulse energy |
≥2 mJ |
|
Laser Pulse width |
12 ns |
|
Drive pulse width |
≤ 4 ms |
|
Pulse repetition rate |
1~5Hz |
|
Pulse stability |
10% |
|
Raw Beam Diameter |
0 .5 mm |
|
Beam divergence angle |
≤ 4mrad |
|
Beam Mode |
TEM00 |
|
Operating temperature |
-40 ℃ ~ +65 ℃ |
|
Storage temperature |
-55 ℃ ~+ 75℃ |
|
Dimension (mm) |
60×25×13.5mm3 |
|
Weight |
105 g |
|
Voltage |
≤ 5 V |
|
Electric current |
80 A |
|
Shock |
1500 G, 0.5 ms |
|
Vibration |
20~2000 Hz/20 G |
|
Lifetime |
＞1million shots |
OUTLINE DIMENSION
Figure 1 Outline Dimensions(mm)
Operating Instructions
-
Match the laser driver to the ER2000 laser.
The laser driver power supply must be properly matched to the laser.
The typical load voltage of the ER2000 is < 5 V, with an operating current of 80 A, pulse width < 4 ms, and a repetition rate of 5 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. During 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.
Product Description
ER2000 1.54µm / 1535nm 2mJ Eye-Safe Erbium Glass Laser for Multi-Field Sensing
The ER2000 is a 2mJ 1535nm eye-safe erbium glass laser designed as a high-energy core for long-range sensing, free-space and fiber communication links, and precision medical systems, not just laser rangefinders. It uses an Er³⁺/Yb³⁺ co-doped phosphate glass slab with stacked diode-array pumping to deliver millijoule-level pulses while maintaining Class 1 eye-safe operation at 1.54µm.
Optically, the ER2000 provides ≥2mJ pulse energy with a 12ns pulse width and a 1–5Hz repetition rate. Energy stability is specified at about 5% RMS, and the beam is TEM₀₀ with a raw 0.5mm diameter and ≤4mrad full-angle divergence, giving a clean, well-controlled spot that is easy to collimate or couple into external optics, fiber couplers or scanning heads.
The laser head is highly compact (60×25×13.5mm³, 105g) and operates from −40°C to +65°C without TEC, with storage down to −55°C and up to +75°C. An integrated photodiode can be used to monitor each pulse in real time, supporting closed-loop calibration and long-term stability management in demanding instrumentation. The design meets MIL-STD-810G shock and vibration test standards and is rated for a service life of at least 10 million shots.
Beyond classic long-range rangefinders and imaging systems—where high pulse energy and low atmospheric attenuation enable >20km performance on suitable targets—the ER2000 also fits naturally into tactical communication links at 1.5µm, taking advantage of standard telecom windows to reduce loss in field-deployable fiber or free-space optical paths. In the medical field, the strong water absorption at ~1.54µm can be exploited in ophthalmic and dental procedures, where controlled energy deposition in water-rich tissues is required.
With its combination of 2mJ pulse energy, eye-safe wavelength, TEM₀₀ beam quality, compact size and MIL-STD-810G environmental robustness, the ER2000 is a versatile 1535nm source that can sit at the heart of long-range LiDAR channels, precision laser rangefinders, tactical optical communication terminals, medical treatment systems and other infrared sensing platforms that demand both range and reliability.
Model-specific conditions and limits
Conditions are retained only when the source states them. They are not reconstructed from a nominal range or wavelength.
Read the controlled model table for its stated target, reflectance, visibility, temperature, rate and acceptance conditions. No additional condition has been inferred for this model.
1535 nm Pulsed-Source Integration Context
Pulse energy, pulse width, repetition rate, beam divergence, drive waveform, thermal path and the receiving architecture must be assessed together in the finished instrument. The model PDF controls its source values; system range is not inferred from a pulse-energy value, a neighbouring model, or wavelength alone.
Pulse energy describes emitted energy per pulse; its effect cannot be separated from pulse width, divergence, optical losses, receiver threshold and the stated target/atmosphere conditions. It is not a substitute for a model-specific near- or long-range acceptance test.
Source-stated application context
Application labels indicate evaluation context, not automatic fitness for a finished system.
No separate source-stated application section is available in this release. Confirm the use case, integration environment and acceptance method with ERDI engineering.
Confirm short- and long-distance acceptance conditions
- Define minimum distance, target material, reflectance, size and incidence angle.
- Check receiver recovery, optical-axis overlap and strong-return handling at the intended near limit.
- Verify supply tolerance, peak current, grounding, interface levels, connector and timing with the ordered revision.
- For long-distance acceptance, state target geometry, visibility, weather, background and required detection probability.
- Test with the installed window, boresight, field of view, enclosure and thermal path rather than a bare module alone.
- Evaluate accessible emission, labels and failure conditions again for the finished laser product under IEC 60825-1.
Questions to resolve before design release
Does a stated maximum range apply to every target?
No. A stated range must be read with its target and environmental conditions. Dark, small, oblique, wet or partially obscured targets and degraded visibility can reduce received signal.
Does 1535 nm itself establish the laser classification?
No. Classification concerns accessible emission from the finished laser product. The module statement and final instrument assessment are distinct.
Can a long-range claim be used as the minimum range?
No. Minimum-distance behaviour depends on the particular transmit/receive geometry, receiver timing and strong-return management documented for the model and host system.
Product evidence and general technical context
The model PDF controls model claims. Public references below explain general engineering principles only.
- ERDI ER2000 model PDFModel-specific technical evidence.
- System Design of a Pulsed Laser RangefinderOptical Engineering 30(3), 1991 - link budget, background, noise, detection and range error.
- The Short-Range, High-Accuracy Compact Pulsed Laser Ranging SystemSensors 22(6), 2146, 2022 - pulsed-ToF equation, timing error, reflectivity and temperature effects.
- Laser system range calculations and the Lambert W functionApplied Optics 48(4), B1-B7, 2009 - range performance versus atmospheric transmission, target and system parameters, and threshold SNR; its 1.06 µm example is general context, not ERDI model data.
- Monostatic all-fiber rangefinder systemApplied Optics 54(25), 7687-7694, 2015 - a measured case study of shared-aperture geometry and receiver-recovery loss; it does not establish an ERDI model limit.
- Light Transmission in Fog: The Influence of Wavelength on the Extinction CoefficientApplied Sciences 9(14), 2843, 2019 - measured and modeled wavelength-dependent fog attenuation.
- IEC 60825-1:2014Laser-product classification and accessible-emission requirements; final equipment requires system-level assessment.
- Practical application of pulsed “eye-safe” microchip laser to laser rangefindersOpto-Electronics Review 21(3), 2013 - a peer-reviewed 1535 nm rangefinder implementation; use for general transmitter/receiver and atmospheric-design context, not model specifications.