1535 nm eye-safe erbium glass microchip laser sources. Every model below is a production unit with
a published specification table - open one for its full parameters, outline information and datasheet.
The 1535 nm high repetition frequency diode pumped solid state laser delivers ≥10 μJ pulse energy, utilizing advanced bonded-body technology with Er:glass and Co:spinel crystals. Its Class 1 eye-safe design ensures enhanced safety for precision applications.
The ER100 is a 1535nm eye-safe erbium glass DPSS laser designed as a compact, board-level source for modern laser rangefinders and LiDAR systems. Using co-doped Er:Yb phosphate glass pumped by a semiconductor laser diode, it emits at 1.54 µm in the Class 1 eye-safe band, combining small size, low weight and robust performance for outdoor long-distance optical transmission.
With pulse energy ≥ 100 µJ, a typical pulse width of 6 ns and a repetition rate from 1 to 10 Hz, the ER100 provides a clean, nanosecond pulse suitable for time-of-flight ranging down to centimeter-level resolution. Pulse stability is within 10%, while the raw beam diameter is about 0.3 mm and the beam divergence is ≤ 8 mrad in a TEM₀₀ mode, making it easy to collimate or couple into small-aperture transmit optics.
The module is engineered for demanding field environments. It operates from −40 °C to +65 °C and can be stored from −55 °C to +75 °C, with mechanical robustness verified against shock and vibration tests in line with MIL-STD-810G. Service life is specified as ≥ 10 million shots, supporting long-term deployment in mission-critical systems.
Physically, the ER100 fits into a 21 × 8 × 6.8 mm³ package and weighs only 7 g, making it suitable for direct integration onto rangefinder or sensor PCBs where every millimeter and gram matters. It typically operates from a 2 V drive with an 8 A current pulse and a driver pulse width ≤ 2.4 ms; identical parameters are used in the driver setup guidelines, where users are instructed to verify voltage, current, pulse width and frequency before enabling emission.
The laser is intended to be used with a dedicated pulsed driver. Recommended procedures include pre-power inspection (checking wiring, polarity, connector seating and a clean output window), a defined power-on sequence, parameter setting according to the factory test report, monitored laser emission and a controlled shutdown sequence. These steps help prevent over-current or thermal stress and ensure stable operation throughout the device lifetime.
Thanks to the 1.5 µm wavelength band, the ER100 enjoys low atmospheric attenuation and strong penetration through haze, rain and aerosol, while also being strongly absorbed by the anterior structures of the eye, greatly reducing retinal risk and enabling eye-safe operation in man-in-the-loop scenarios. Typical applications include handheld and weapon-mounted laser rangefinders, micro and small UAV EO/IR gimbals, compact LiDAR for mapping and obstacle detection, structural health monitoring in industrial sites, and embedded laser sources in microjoule-level rangefinding modules.
OUTLINE DIMENSION
Figure 1 Outline Dimensions(mm)
Operation Instructions
Pre-Power Inspection
Confirm that the laser and driver have been correctly wired according to the wiring diagram.
Verify that the driver output voltage, current, pulse width, and repetition rate settings meet the limits specified for the ER100 (typical load voltage < 2 V, operating current 8 A, pulse width < 2 ms, repetition rate 10 Hz, unless otherwise stated in the factory test report).
Make sure all connectors are firmly seated and that there are no loose wires, short circuits, or reversed polarity.
Check that the laser output window is clean and free of dust, fingerprints, or other contamination.
Power-On Sequence
Ensure that the driver output is disabledbefore powering on the system.
Switch on the main power supply of the driver and confirm that the driver powers up normally (status indicators, GUI, or monitoring interface show no alarms).
Wait for the driver and system to complete any internal self-tests, if applicable.
Parameter Setting
According to the attached factory test report, set the driver parameters (output current, pulse width, repetition frequency, and any timing or trigger settings) to the recommended values.
If the system supports external triggering, verify that the trigger source (internal / external), trigger level, and timing configuration are set correctly.
Confirm the final parameter values on the GUI or front panel before enabling laser output.
Laser Emission Operation
Enable the laser output on the driver (via “Enable” button, GUI command, or hardware switch, depending on the specific driver).
Observe the driver status indicators and any monitoring signals to confirm that laser emission is normal and no over-current, over-temperature, or fault alarms are present.
During operation, do nottouch or obstruct the laser output window, and strictly follow the applicable laser safety regulations (wear appropriate protective eyewear, avoid direct or specular reflections into the eyes, and control the beam path).
Shutdown Procedure
First disablethe laser output on the driver.
After confirming that laser emission has stopped, switch off the main power supply of the driver.
If the system has a cooling fan or other thermal management devices, allow sufficient time for the system to cool down before disconnecting power completely or performing any maintenance.
Post-Operation Checks
Inspect the laser and driver for abnormal odors, discoloration, or mechanical damage.
Check the connectors and cables to ensure there is no overheating or insulation damage.
If any abnormal condition or alarm is observed, stop using the device and contact technical support before the next operation.
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.
The ERDI 1535nm High Repetition Frequency Micro-Chip Laser features a bonded erbium glass gain medium, delivering ≥70μJ pulse energy with a 4ns pulse width at 500Hz. Operating at a Class 1 eye-safe 1535nm wavelength, it ensures minimized retinal hazards.
