Detailed MINI-100 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 | MINI-100 |
| Wavelength | 1535 nm |
| Eye safe | Class 1 |
| Pulse energy | ≥100 μJ |
| Laser Pulse width | 3.5 ns |
| Drive pulse width | ≤ 1ms |
| Pulse repetition rate | 1~10Hz |
| Pulse stability | 10% |
| Raw Beam Diameter | 0 .3 mm |
| Beam divergence angle | ≤ 10 mrad |
| Beam Mode | TEM00 |
| Operating temperature | -40 ℃ ~ +65 ℃ |
| Storage temperature | -55 ℃ ~+ 85℃ |
| Dimension (mm) | 14.5×6.3×4.37 mm3 |
| Weight | 2.5 g |
| Voltage | 2 V |
| Electric current | 12 A |
| Impact | Meets MIL-STD-810G test standards (1500 G, 0.5 ms) |
| Vibration | Meets MIL-STD-810G test standards (20~2000 Hz/20 G) |
| Service life | ≥10 million times |
OUTLINE DIMENSION(mm)
14.5×6.3×4.37 mm3
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.
Product Description
The MINI-100 is ERDI’s ultra-compact 1535 nm eye-safe microchip laser, built on co-doped Er:Yb phosphate glass and LD pumping. It delivers ≥100 µJ pulse energy, 3.5 ns pulse width and 1–10 Hz repetition rate in a package measuring only 14.5 × 6.3 × 4.37 mm³ with a mass of 2.5 g, making it an ideal core for micro and small laser rangefinders, compact LiDAR units and integrated electro-optical payloads.
The raw beam diameter is about 0.3 mm with ≤10 mrad divergence and TEM₀₀ beam mode, providing a clean, near-Gaussian output that is easy to collimate or couple into downstream optics. The device operates from a 2 V drive with a current of 12 A, and the specified pulse stability is 10%, giving a good balance between energy density and electrical input in tightly constrained platforms.
Environmentally, MINI-100 is designed for demanding field conditions: the operating temperature range is −40 °C to +65 °C, storage is −55 °C to +85 °C, and both impact and vibration performance meet MIL-STD-810G test standards (1500 G, 0.5 ms shock; 20–2000 Hz / 20 G vibration). The rated service life is ≥10 million shots, supporting long-term use in duty-cycle-limited rangefinder and LiDAR applications rather than lab prototypes.
From a system perspective, MINI-100 is the transmitting core in a 1.5 µm Time-of-Flight ranging chain: an LD-pumped erbium-doped glass cavity generates a narrow nanosecond pulse, which is collimated by the external optics and sent to the target; on return, an InGaAs/APD receiver and high-speed TDC provide centimetre-level accuracy over distances from hundreds of metres to tens of kilometres, depending on the full system design. The 1.5 µm eye-safe band offers low atmospheric loss, strong penetration in fog and rain and good resistance to background light, which is why it is widely used in military fire-control rangefinders, UAV pods, airborne/spaceborne LiDAR and industrial structural monitoring.
ERDI positions MINI-100 as the microjoule-level product in its erbium-glass portfolio: extremely small and light, tailored for direct modular integration onto the circuit boards of micro and small rangefinders. For applications requiring ranges beyond roughly 15 km, ERDI’s millijoule-class erbium-glass lasers with much higher single-pulse energy are recommended; MINI-100 is optimised instead for size, weight, power and integration density in compact systems.
With its combination of Class 1 eye safety, ≥100 µJ energy, 3.5 ns pulse width, micro-size package, MIL-STD-810G robustness and erbium-glass technology, MINI-100 is a strong choice as a 1.54 µm laser source for board-level rangefinder modules, compact LiDAR, UAV / UGV payloads, handheld rangefinders and precision industrial sensing equipment.
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 MINI-100 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.