1535nm Laser Sources

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.

KEY FEATURES

• ✔ 1535 nm Eye-Safe Operation (Class 1)
• ✔ 200µJ Pulse Energy
• ✔ Compact OEM Design
• ✔ High Pulse Stability
• ✔ Long Lifetime

TECHNICAL SPECIFICATIONS

APPLICATIONS

DOWNLOADS

• Datasheet (PDF)
• Interactive 3D model — rotate and zoom in the browser, or download the GLB
• 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

1. 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 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.
2. 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.
3. 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.
4. 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.

PRODUCT OVERVIEW

ER400 is a compact 1535 nm pulsed laser source based on Er:Yb glass microchip technology, designed for long-range LiDAR and rangefinders.

KEY FEATURES

• ✔ 1535 nm Eye-Safe Operation (Class 1)
• ✔ 400µJ Pulse Energy
• ✔ Compact OEM Design
• ✔ High Pulse Stability
• ✔ Long Lifetime

TECHNICAL SPECIFICATIONS

APPLICATIONS

DOWNLOADS

• Datasheet (PDF)
• Interactive 3D model — rotate and zoom in the browser, or download the GLB
• Outline drawing (STEP) — request from our team
• Integration guide — request from our team

Product Description

ER400 1.54µm / 1535nm 400µJ Eye-Safe Erbium Glass Microchip DPSS Laser

The ER400 is a high-energy 1535nm eye-safe erbium glass microchip DPSS laser designed as the transmitter core for long-range LiDAR, laser rangefinders and target designation modules. It uses an LD-pumped erbium-doped glass gain medium in a compact microchip cavity to generate nanosecond pulses at 1.54µm, combining high single-pulse energy with a very small mechanical envelope.

The device delivers ≥400µJ pulse energy with a typical pulse width of about 6ns and a repetition rate adjustable from 1 to 10Hz. Beam quality is TEM₀₀ with a raw beam diameter around 0.3mm and divergence ≤7mrad, providing a tight, clean beam that is easy to collimate for long-distance propagation. Pulse stability is specified at 10%, which supports consistent echo levels for time-of-flight ranging and LiDAR point cloud acquisition.

Mechanically, the ER400 fits into a 35×8×6.8mm³ housing and weighs roughly 12g, making it suitable for direct mounting on driver PCBs inside compact rangefinder and LiDAR engines. Electrically, the typical load voltage is <2V with a high drive current (up to tens of amps), drive pulse width ≤2ms and PRF up to 10Hz. The driver supply must be matched carefully to these parameters; otherwise the laser may fail to operate correctly or suffer overload damage.

The ER400 is built for harsh environments. It operates from −40°C to +65°C and can be stored between −55°C and +75°C. Shock resistance is rated at 1500G / 0.5ms and vibration capability at 20–2000Hz / 20G, while lifetime is specified at more than one million shots, meeting the requirements of long-term fielded systems.

Operational guidelines emphasize safe wiring and parameter control: power must be disconnected before wiring; polarity and connections should be checked carefully to avoid short circuits or reversed terminals; operating parameters such as voltage, current, pulse width and repetition rate must be set according to the factory test report before enabling emission. The output window should be kept clean and should not be touched; if contamination occurs, it must be cleaned before use to prevent loss of energy and potential optical damage. Proper mounting torque (around 0.2 N·m on both mounting lugs) is recommended to maintain mechanical stability without stressing the housing.

With its 1.5µm wavelength, the ER400 operates in an eye-safer regime where radiation is strongly absorbed by the cornea and lens rather than the retina, reducing the risk of permanent eye injury and making it suitable for open, man-in-the-loop environments. Typical applications include long-range laser rangefinders, airborne and UAV-borne LiDAR payloads, naval and vehicle-mounted EO/IR systems, and industrial or infrastructure monitoring where multi-kilometer distance and high peak power are required.

OUTLINE DIMENSION

Figure 1 Outline Dimensions (mm)

Operating Instructions

• Match the laser driver to the ER400 laser.
  The laser driver power supply must be properly matched to the laser.
  The typical load voltage of the ER400 is < 2 V, with an operating current of 15 A, pulse width < 2 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. 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.

• 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 before operating the laser.

• Use the correct mounting torque.
  Because the overall length of the laser housing is relatively long, when fastening the laser via the mounting lugs on both sides, use a torque screwdriver set to 0.2 N·m. Excessive or insufficient torque may affect the mechanical stability and performance of the laser.

PRODUCT OVERVIEW

ER500 is a compact 1535 nm pulsed laser source based on Er:Yb glass microchip technology, designed for long-range LiDAR and rangefinders.

KEY FEATURES

• ✔ 1535 nm Eye-Safe Operation (Class 1)
• ✔ 500µJ Pulse Energy
• ✔ Compact OEM Design
• ✔ High Pulse Stability
• ✔ Long Lifetime

TECHNICAL SPECIFICATIONS

APPLICATIONS

DOWNLOADS

• Datasheet (PDF)
• Interactive 3D model — rotate and zoom in the browser, or download the GLB
• Outline drawing (STEP) — request from our team
• Integration guide — request from our team

Product Description

ER500 1.54µm / 1535nm 500µJ Eye-Safe Erbium Glass Microchip DPSS Laser

The ER500 is a high-energy 1535nm eye-safe erbium glass microchip DPSS laser designed as a transmitter core for long-range LiDAR, laser rangefinders and target-designation modules. It combines a diode-pumped Er³⁺:glass gain medium with a compact microchip cavity, delivering nanosecond pulses in a slim board-level package that is easy to integrate into airborne, vehicle and handheld systems.

The laser provides single-pulse energy of at least 500µJ with a typical pulse width of 6ns and a pulse repetition rate adjustable from 1 to 10Hz. Pulse stability is specified at 10%. The raw beam diameter is about 0.3mm, with divergence ≤ 7mrad and TEM₀₀ beam mode, giving a tight, near-Gaussian beam that is straightforward to collimate for multi-kilometer outdoor ranging.

Mechanically, the ER500 is housed in a 35×8×6.8mm³ package and weighs around 12g, making it suitable for direct mounting on driver PCBs where space and mass are at a premium. It is driven from a low-voltage, high-current pulse: typical load voltage is about 2V, operating current is 20A, drive pulse width ≤ 2.4ms and repetition rate up to 10Hz. The driver power supply must match these parameters; if not, the laser may fail to start properly or could be overloaded and permanently damaged.

The ER500 is designed for harsh environmental conditions. The operating temperature range is −40°C to +65°C and the storage range is −55°C to +75°C. Shock resistance is rated at 1500G for 0.5ms, and vibration tolerance is 20–2000Hz at 20G. Lifetime is specified at more than 1 million shots, aligning with the requirements of long-life fielded LiDAR and rangefinding platforms.

Operation guidelines emphasize safe wiring and correct parameter setup. Power must be fully disconnected before making connections; polarity must be checked carefully, and all terminals must be firmly tightened to avoid short circuits, reverse polarity and intermittent contacts. After wiring, parameters on the driver should be set strictly according to the factory test report before enabling emission, ensuring that voltage, current, pulse width and repetition rate stay within the specified range. The output window must be kept clean and should not be touched; if contamination occurs, it should be cleaned before operation. When mounting the device via the side lugs, a torque of about 0.2 N·m is recommended to maintain mechanical stability without distorting the housing.

With its 1.54µm wavelength, the ER500 operates in an eye-safer band where radiation is strongly absorbed by the cornea and lens instead of directly reaching the retina. This, combined with low atmospheric attenuation and good penetration in haze, rain and aerosol, makes the ER500 especially suitable for open, man-in-the-loop applications. Typical scenarios include long-range laser rangefinders, UAV and airborne LiDAR payloads, compact EO/IR gimbals, ship-borne and vehicle-mounted sensor heads, as well as industrial mapping, structural monitoring and robotic perception systems that require multi-kilometer performance with an eye-safe source.

OUTLINE DIMENSION

Figure 1 Outline Dimensions(mm)

Operating Instructions

• Match the laser driver to the ER500 laser.
  The laser driver power supply must be properly matched to the laser.
  The typical load voltage of the ER500is < 2 V, with an operating current of 20 A, pulse width < 2 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. 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.
• 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.
• Use the correct mounting torque.
  Because the overall length of the laser housing is relatively long, when fastening the laser via the mounting lugs on both sides, use a torque screwdriver set to 2 N·m. Excessive or insufficient torque may affect the mechanical stability and performance of the laser.

PRODUCT OVERVIEW

ER300 is a compact 1535 nm pulsed laser source based on Er:Yb glass microchip technology, designed for multi-kilometer rangefinders.

KEY FEATURES

• ✔ 1535 nm Eye-Safe Operation (Class 1)
• ✔ 300µJ Pulse Energy
• ✔ Compact OEM Design
• ✔ High Pulse Stability
• ✔ Long Lifetime

TECHNICAL SPECIFICATIONS

APPLICATIONS

DOWNLOADS

• Datasheet (PDF)
• Interactive 3D model — rotate and zoom in the browser, or download the GLB
• Outline drawing (STEP) — request from our team
• Integration guide — request from our team

Product Description

ER300 1535nm 300µJ Eye-Safe Erbium Glass Microchip DPSS Laser

The ER300 is a 1.54µm, 1535nm eye-safe erbium glass microchip DPSS laser developed as a compact pulse source for long-range LiDAR, laser rangefinding and target designation tasks. It combines a diode-pumped Er³⁺:glass gain medium with a microchip resonator to deliver nanosecond pulses in a very small, board-level package that can be embedded in OEM systems where space and weight are tightly constrained.

The ER300 provides ≥300µJ single-pulse energy with a typical pulse width of 5ns and a repetition rate adjustable from 1 to 10Hz. Raw beam diameter is about 0.3mm and the divergence is ≤7mrad in a TEM₀₀ mode, which makes it straightforward to collimate or feed into a small-aperture transmit optic while maintaining good beam quality. Pulse stability is specified at 10%, supporting consistent performance for time-of-flight ranging and LiDAR point-cloud generation.

Designed for demanding outdoor environments, the laser operates from −40°C to +65°C and can be stored from −55°C to +75°C. It passes shock testing at 1500G / 0.5ms and vibration testing from 20–2000Hz at 20G, and the specified lifetime exceeds 1 million shots, giving system designers confidence in long-term field deployment. The module measures only 25×8×6.8mm³ and weighs about 8.5g, so it can be mounted directly on driver boards inside compact rangefinder or LiDAR modules.

Electrically, the ER300 is driven from a low-voltage, high-current pulse: typical load voltage is <2V, operating current is 12A, drive pulse width ≤2.4ms and repetition rate up to 10Hz. To protect the device, the driver must be correctly matched to these parameters; the specification sheet and factory test report are used as the reference for setting voltage, current, pulse width and PRF before enabling emission. Proper wiring practice is emphasized: power must be disconnected before connection, polarity must be carefully checked and all contacts should be secure to avoid short circuits, reverse polarity and intermittent connections.

Operating instructions also highlight the need to keep the laser output window clean. The window surface should not be touched; if contamination appears, it should be cleaned before use to prevent energy loss and potential damage. When integrated into a complete laser-ranging or LiDAR system, the ER300 acts as the transmitter core: its nanosecond pulse is expanded and collimated by the transmit optics, reflected from the target and detected at the receiver by an InGaAs APD matched to 1.5µm, with a TDC providing precise time-of-flight measurement.

Thanks to the 1.5µm wavelength, the ER300 works in an eye-safer regime and benefits from low atmospheric attenuation and strong penetration in haze, rain and aerosol conditions. Typical application scenarios include handheld and weapon-mounted laser rangefinders, micro and small UAV LiDAR payloads, EO/IR pods requiring an embedded 1535nm source, topographic mapping systems, industrial structural monitoring and robot navigation, as well as microjoule-to-millijoule-level hybrid architectures where ERDI’s erbium glass lasers are the core pulse engine.

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 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 before operating the laser.