1535nm Eye-Safe Erbium Laser (200uJ, 10Hz) For Medical/Industrial

The 1535nm 200μJ 10Hz Erbium Glass Laser is a compact pulsed laser source designed for laser ranging, LiDAR, optical sensing and OEM system integration. Operating at 1535 ± 5nm, the module delivers 200μJ pulse energy at 10Hz with a short 5ns pulse width, providing a focused combination of single-pulse energy, compact size and low-frequency pulsed operation.

Built around the 1535nm eye-safe spectral region, this Erbium Glass laser module is designed for engineers and equipment manufacturers developing compact ranging and sensing systems where pulse energy, beam characteristics, size, weight and environmental performance must be evaluated together.

Rather than maximizing pulse energy or repetition rate alone, this model is positioned as a compact 200μJ pulsed laser source for OEM applications requiring moderate single-pulse energy at 10Hz.

For a 1535nm pulsed laser, pulse energy and repetition rate should be selected according to the requirements of the complete optical system-not simply by choosing the highest available value.

This 1535nm Erbium Glass laser delivers 200μJ pulse energy at 10Hz with a 5ns pulse width, creating a specific operating profile for compact laser ranging, time-of-flight sensing and OEM optical systems that require meaningful single-pulse energy without moving to a larger mJ-class laser source.

The key combination is:

1535nm → 200μJ → 10Hz → 5ns

Each parameter addresses a different system requirement.

200μJ: More Energy in Each Laser Pulse

Pulse energy describes the optical energy delivered in each emitted pulse.

With 200μJ per pulse, this 1535nm laser is positioned between lower-energy μJ-class sources and higher-energy mJ-class pulsed lasers.

For ranging and sensing engineers, this matters because the transmitted pulse must ultimately generate a detectable return signal after losses through:

Transmit Optics → Atmosphere → Target → Return Path → Receiver Optics → Detector

A 200μJ 1535nm laser can therefore be evaluated for systems where the designer requires more single-pulse energy than lower-energy high-repetition-rate sources, while maintaining a compact laser architecture.

It is particularly relevant when the system requirement is:

Moderate single-pulse energy + compact size + low repetition rate

rather than:

Very high pulse frequency + minimum pulse energy

Why 10Hz Instead of kHz-Level Repetition Rates?

A higher repetition rate is not automatically better for every laser ranging system.

This 10Hz 1535nm pulsed laser generates up to 10 laser pulses per second under its specified operating condition. That makes it fundamentally different from 1kHz or 2kHz laser sources designed around high pulse-count operation.

A 200μJ / 10Hz laser source can be considered when the system prioritizes:

• Higher energy per individual pulse
• Periodic distance measurements
• Low-rate time-of-flight ranging
• Compact rangefinder architectures
• Controlled trigger timing
• OEM systems that do not require high-frequency scanning

By contrast, applications requiring rapid point acquisition or high-density scanning may benefit from a higher-repetition-rate 1535nm laser instead.

This distinction gives the 200μJ / 10Hz model a clear role within a broader 1535nm Erbium Glass laser family.

5ns Pulse Width for Pulsed Time-of-Flight Systems

In addition to pulse energy and repetition rate, pulse width is an important parameter for a pulsed ranging source.

This model provides a specified pulse width of:

5ns*

A short nanosecond-scale pulse creates a defined optical emission event that can be used as the transmitted signal in time-of-flight (TOF) laser ranging systems.

In a simplified ranging architecture:

5ns Laser Pulse → Target → Reflected Signal → Detector → Time Measurement → Distance

The laser pulse width is only one contributor to overall ranging performance. Receiver bandwidth, detector response, timing electronics, signal processing and system calibration also affect the final distance resolution and accuracy.

For this reason, the 5ns pulse width should be evaluated as part of the complete ranging-system timing budget, rather than treated as a standalone guarantee of ranging resolution.

Why the 200μJ + 10Hz + 5ns Combination Matters

The three parameters work together to define the operating character of this 1535nm eye-safe Erbium laser module:

The result is not simply a "high-power" or "high-speed" laser.

Instead, this model is designed around a more specific engineering requirement:

Sufficient single-pulse energy for compact pulsed ranging without requiring kHz repetition rates or mJ-class pulse energy.

That makes the parameter combination itself the key product differentiator.

What System Requirements Fit a 200μJ 10Hz Laser?

This 1535nm 200μJ laser module is particularly relevant for engineers developing systems where the design priorities include:

• Compact Laser Rangefinding

Applications requiring periodic single-point or low-rate distance measurements rather than high-density scanning.

• Time-of-Flight Sensing

Systems using short optical pulses and return-signal timing to determine distance.

• Portable Electro-Optical Equipment

OEM systems where laser size, weight and power requirements must be considered alongside pulse performance.

• Industrial Distance Measurement

Pulsed sensing architectures requiring a compact 1535nm laser source with moderate single-pulse energy.

• OEM Ranging System Integration

Custom optical systems where the laser source is integrated with external transmit optics, receiver optics, detector and processing electronics.

200μJ / 10Hz vs Other 1535nm Laser Configurations

Different pulse-energy and repetition-rate combinations solve different engineering problems.

Lower μJ Energy + kHz Frequency

Better suited to applications prioritizing high pulse rates and rapid sampling.

200μJ + 10Hz - This Model

Designed around moderate single-pulse energy, low-rate ranging and compact OEM integration.

Higher μJ / mJ Energy + Low Frequency

Better suited to systems where higher transmitted pulse energy is required and the additional size, power or system complexity is acceptable.

The correct choice should therefore begin with the application requirement:

Required Detection Range → Target Characteristics → Receiver Sensitivity → Required Pulse Energy → Measurement Rate → Laser Source

-not simply with the largest pulse-energy number.

A Laser Source, Not a Guaranteed Ranging Distance

The 200μJ pulse energy should not be translated directly into a fixed ranging distance.

Actual ranging performance depends on the complete system, including:

Transmit optics + beam divergence + atmospheric transmission + target size and reflectivity + receiver aperture + detector sensitivity + signal processing

For this reason, this 1535nm 200μJ 10Hz Erbium Glass laser is best evaluated as a pulsed source for ranging-system development, with final performance determined at the complete system level.

Need to evaluate 200μJ / 10Hz for your ranging system?

Provide your target range, target characteristics, receiver configuration, repetition-rate requirement and mechanical constraints to evaluate whether this 1535nm pulsed laser configuration fits your OEM system.

The 1535nm wavelength is widely used in eye-safe laser ranging, LiDAR and optical sensing systems because it combines the characteristics of the 1.5μm near-infrared spectral region with compact Erbium Glass pulsed laser technology.

This 1535nm Erbium Glass laser operates at approximately 1.535μm, providing a compact pulsed source for OEM systems that require a wavelength commonly selected for eye-safe ranging applications.

The technical relationship is:

Erbium Glass Laser → 1535nm → 1.535μm → Eye-Safe Spectral Region → Laser Ranging / LiDAR

However, "eye-safe wavelength" and "eye-safe laser system" are not the same thing. Final laser safety classification depends on the accessible emission, pulse characteristics, optical configuration, exposure conditions and applicable laser safety standard.

1535nm = 1.535μm

The wavelength of this laser can be expressed in either nanometers or micrometers:

1535nm = 1.535μm

because:

1μm = 1,000nm

The term 1.54μm laser is also commonly used to describe this general Erbium Glass laser wavelength region, but the specified wavelength for this model is:

1535 ± 5nm*

For system engineers, the actual specified wavelength should be used when evaluating optics, detectors, filters and other components in the optical chain.

Why Is 1535nm Considered an Eye-Safe Spectral Region?

The term eye-safe is commonly associated with laser wavelengths around the 1.5μm region because their interaction with the eye differs from shorter near-infrared wavelengths.

At approximately 1535nm, incident radiation is absorbed more strongly by the anterior structures and media of the eye before it can reach the retina compared with wavelengths in the retinal-hazard region.

This is one reason 1535nm eye-safe lasers are widely considered for applications such as:

• Laser rangefinders
• Time-of-flight ranging
• LiDAR systems
• Optical distance measurement
• Electro-optical sensing equipment

For ranging-system designers, this gives the 1535nm Erbium Glass laser an important wavelength-level advantage when developing equipment in which eye-safety considerations are part of the system requirements.

However, this does not mean that direct exposure to a 1535nm laser is automatically safe.

Eye-Safe Wavelength Does Not Automatically Mean Class 1

This distinction is important for professional laser procurement.

A 1535nm laser should not automatically be described as Class 1 simply because it operates at an eye-safe wavelength.

Laser safety classification depends on more than wavelength. Relevant factors can include:

Wavelength → Pulse Energy → Pulse Width → Repetition Rate → Beam Characteristics → Accessible Emission → Optical Configuration → Exposure Conditions

For this model:

Wavelength → 1535 ± 5nm*
Pulse Energy → 200μJ
Repetition Rate → 10Hz
Pulse Width → 5ns*

These parameters should be evaluated together when determining the applicable laser safety classification for the module or the final integrated product.

If a Class 1 claim is required for an OEM project, it should be supported by the applicable standard, measurement conditions and test documentation for the relevant configuration.

Why Erbium Glass for a 1535nm Pulsed Laser?

Erbium-doped glass is well suited to compact pulsed laser sources operating in the approximately 1.5μm wavelength region.

For OEM ranging applications, an Erbium Glass laser can combine:

1535nm wavelength output

with

nanosecond pulse operation

and

compact laser architecture

This makes Erbium Glass technology particularly relevant to small 1535nm pulsed laser modules intended for integration into rangefinders, LiDAR units and other electro-optical sensing systems.

For this product, the combination is:

1535nm Erbium Glass + 200μJ + 10Hz + 5ns + Compact Form Factor

rather than wavelength alone.

Why 1535nm Is Relevant to Laser Ranging

A laser rangefinder requires more than an appropriate wavelength, but wavelength selection affects the architecture of the complete optical system.

A typical 1535nm laser ranging system follows:

1535nm Pulsed Laser → Transmit Optics → Target → Reflected Signal → Receiver Optics → Detector → Time-of-Flight Processing

The 1535nm Erbium Glass laser module acts as the pulsed transmitter source within this chain.

For OEM engineers, the wavelength must therefore be considered together with:

• Transmit optics compatible with 1535nm
• Receiver detector sensitivity
• Optical filter selection
• Target reflectivity
• Atmospheric transmission
• Required ranging distance
• Pulse energy and repetition rate

This system-level approach is more useful than evaluating a 1535nm eye-safe laser source by wavelength alone.

1535nm vs 905nm for Eye-Safe Ranging Systems

Both 905nm and approximately 1535nm / 1.5μm wavelengths can be found in laser ranging and LiDAR systems, but they represent different system design choices.

The 1535nm region is particularly attractive when the system architecture benefits from its eye-safety characteristics and compatibility with 1.5μm optical components.

This does not make 1535nm universally better than 905nm. Detector technology, optical components, required range, cost, pulse energy and system architecture should all be considered.

For an OEM buyer, the correct question is therefore not:

"Is 1535nm the best ranging wavelength?"

but:

"Does a 1535nm pulsed source provide the wavelength, pulse energy and system-level characteristics required by my ranging architecture?"

1535nm Eye-Safe Ranging Starts with System-Level Evaluation

For this 200μJ 10Hz Erbium Glass laser, the wavelength selection can be summarized as:

1535nm / 1.535μm
↓
Erbium Glass Pulsed Source
↓
Eye-Safe Spectral Region
↓
200μJ / 10Hz / 5ns Output
↓
Ranging or LiDAR Integration
↓
Complete System Safety Evaluation

This is why the product is positioned as a 1535nm eye-safe Erbium Glass laser source for ranging and OEM integration, rather than as a laser that is automatically eye-safe under every operating condition.

For OEM engineers, selecting a 1535nm Erbium Glass laser is not only about wavelength and pulse energy. The laser source must also fit within the mechanical, electrical, optical and thermal architecture of the final equipment.

This 1535nm 200μJ 10Hz laser module is built around compact system integration, with a specified module size of only 21 × 8 × 7mm and a weight of approximately 8g*.

The compact form factor makes the laser particularly relevant to portable laser rangefinders, compact electro-optical systems, LiDAR units and other space- or weight-constrained OEM equipment.

The integration concept is:

1535nm Laser Source → Mechanical Fit → Driver & Electrical Interface → Optical Alignment → Thermal Management → System Verification

21 × 8 × 7mm Compact Mechanical Envelope

The physical dimensions of a laser source directly affect how easily it can be integrated into compact ranging equipment.

For this 1535nm Erbium Glass laser module:

Dimensions → 21 × 8 × 7mm*
Weight → 8g*

Rather than requiring the OEM designer to accommodate a large standalone laser assembly, the compact package is intended for integration as an internal optical source within the customer's equipment.

This is particularly relevant where the system has strict SWaP - Size, Weight and Power - constraints.

Typical integration targets can include:

• Compact laser rangefinder modules
• Portable electro-optical equipment
• Handheld distance-measurement systems
• LiDAR and optical sensing units
• Space-constrained industrial ranging equipment

For these applications, the 21 × 8 × 7mm mechanical footprint becomes part of the system design requirement rather than simply a product specification.

8g for Weight-Constrained Optical Systems

At approximately 8g*, this compact 1535nm pulsed laser source adds relatively little mass to the complete optical assembly.

Weight can become especially important when the laser is integrated into portable, handheld or moving electro-optical equipment.

The relevant engineering question is therefore not simply:

"Is the laser small?"

but:

"Can the 1535nm laser source meet the required pulse performance within the size and weight budget of the complete system?"

For this model, the combination of:

200μJ Pulse Energy + 10Hz + 5ns + 21 × 8 × 7mm + 8g

defines its role as a compact 1535nm laser module for OEM ranging integration.

Driver & Electrical Integration

A pulsed Erbium Glass laser must be evaluated together with its electrical drive requirements.

For this model, the current product specification should be confirmed against the final engineering datasheet for parameters such as:

For OEM projects, these parameters allow the system engineer to determine whether the existing power architecture and laser driver can support the 1535nm 200μJ pulsed laser.

The electrical integration chain should be evaluated as:

System Power → Laser Driver → Trigger Signal → 1535nm Laser Module → Optical Pulse

If a dedicated driver solution is available for the project, the laser source and driver can be evaluated together according to the required OEM configuration.

Why the Laser Driver Matters

The laser driver is not simply an accessory.

For a 200μJ 10Hz pulsed laser, the electrical drive conditions influence how the laser is triggered and operated within the complete ranging system.

OEM engineers should therefore verify:

• Input electrical requirements
• Peak current requirements
• Drive pulse characteristics
• Trigger timing
• Repetition-rate control
• Electrical connection
• Protection and operating limits

before finalizing the system design.

This is particularly important when replacing another 1535nm laser source or integrating the module into an existing rangefinder electronics platform.

Mechanical Integration: More Than Module Dimensions

Although the 21 × 8 × 7mm package provides the basic mechanical envelope, successful laser module integration also requires consideration of the physical relationship between the laser and the complete optical assembly.

OEM designers may need to evaluate:

Mounting Reference - how the module is located and secured within the system.

Optical Axis - position of the 1535nm laser output relative to the transmit optics.

Output Aperture - location and clearance requirements around the emitted beam.

Mechanical Tolerance - dimensional requirements affecting optical alignment.

Cable / Lead Direction - space required for electrical connection.

Thermal Interface - how heat is transferred from the laser module into the system structure.

Recommended drawing callouts:

Optical Axis / Output Aperture / Mounting Reference / Electrical Leads / Overall Dimensions

Optical Integration into the Ranging System

The laser module is the transmitter source-not the complete optical system.

For a typical 1535nm laser rangefinder, integration may follow:

200μJ Erbium Glass Laser
↓
Beam Conditioning / Collimation Optics
↓
Transmit Optical System
↓
Target
↓
Receiver Optics
↓
1535nm-Compatible Detector
↓
TOF Processing

The module's beam diameter, divergence and output-axis position should therefore be evaluated against the customer's transmit-optics design.

Where additional beam shaping or collimation is required, it should be determined at the complete optical-system level.

Mechanical, Electrical and Optical Interfaces Should Be Evaluated Together

A compact laser does not automatically guarantee easy integration.

For professional OEM 1535nm laser integration, four interfaces should be reviewed together:

• Mechanical → Does 21 × 8 × 7mm fit the available envelope?
• Electrical → Can the driver and power architecture support the required operating conditions?
• Optical → Can the output beam be correctly aligned with the transmit optics?
• Thermal → Can the system maintain the required operating environment and laser performance?

This creates a more practical OEM selection process:

Pulse Requirement → Laser Module → Mechanical Fit → Driver Compatibility → Optical Alignment → Thermal Design → System Test

Integration Support for Rangefinder & LiDAR Manufacturers

For laser rangefinder manufacturers, LiDAR developers and OEM electro-optical system integrators, the 1535nm laser can be evaluated against the actual equipment architecture rather than selected from wavelength and pulse energy alone.

For engineering evaluation, provide:

• Required pulse energy
• Repetition rate
• Available mechanical envelope
• Power / driver architecture
• Optical interface requirements
• Operating temperature range
• Expected production quantity

Based on these requirements, the 1535nm 200μJ 10Hz Erbium Glass laser module can be evaluated for mechanical, electrical and optical compatibility with the OEM system.

Different 1535nm Erbium Glass lasers are designed for different system requirements. The right configuration depends on the required pulse energy, repetition rate, measurement speed, ranging architecture and OEM integration constraints.

For professional buyers, higher pulse energy or higher repetition rate is not automatically better-the laser should match the complete optical system.

Why Choose the 200μJ / 10Hz Model?

This 1535nm 200μJ 10Hz Erbium Glass laser sits between low-energy/high-frequency sources and larger mJ-class lasers.

Its key positioning is:

200μJ Pulse Energy + 10Hz + 5ns + Compact Form Factor

This configuration is particularly suitable for compact laser rangefinders, time-of-flight ranging and OEM electro-optical systems that require more single-pulse energy than a 20μJ source without moving to a higher-energy mJ-class laser.

Select by System Requirement

Need high repetition rate? → Consider 20μJ / 2kHz

Need compact size + balanced pulse energy? → 200μJ / 10Hz

Need higher single-pulse energy? → Consider 2mJ / 5Hz

Need mJ-class output? → Consider 8–10mJ / 5Hz

The recommended selection process is:

Ranging Requirement → Pulse Energy → Repetition Rate → Beam Performance → SWaP → 1535nm Laser Module

Final ranging performance also depends on the transmit optics, beam divergence, target reflectivity, receiver aperture, detector sensitivity and atmospheric conditions.

With its core performance of 1535nm eye-safe wavelength, 200μJ pulse energy and 10Hz repetition rate, this product is mainly applied in two major fields: medical and industrial. It is suitable for diversified needs such as precision operations, sensing and measurement, and portable device integration. Details are as follows:

Medical Field

Corneal Ablation and Refractive Surgery: Boasting a water absorption coefficient of 12 cm⁻¹ at 1535nm, it enables precise tissue processing with minimal damage.

Dental Soft Tissue Surgery and Oral Treatment: Ideal for delicate oral procedures due to its safe and precise output.

Non-Invasive Medical Imaging and Diagnostic Equipment: Serves as a core light source for high-precision diagnostic devices.

Portable Medical Laser Devices for Field Operations: Compact and lightweight design fits perfectly into handheld medical equipment for outdoor or emergency use.

Industrial Field

Long-Range Laser Ranging: Achieves a ranging distance of up to 10km for building targets and 8km for vehicle targets.

LiDAR Sensors and 3D Imaging Systems: Provides stable light source support for high-precision 3D scanning and imaging.

Industrial Precision Measurement and Positioning: Ensures accurate data collection in industrial production and assembly processes.

Environmental Sensing and Laser Communication: Reliable performance in harsh environments for environmental monitoring and long-distance laser communication.

Laser Pointing and Targeting for Industrial Equipment: Offers clear and stable indication for industrial machinery and detection devices.

For laser rangefinder manufacturers, LiDAR developers and electro-optical system integrators, we provide OEM 1535nm Erbium Glass laser solutions based on the requirements of your optical system.

The standard 1535nm 200μJ 10Hz pulsed laser module can be evaluated for OEM integration, while selected specifications and interfaces may be customized according to project requirements and technical feasibility.

Available OEM & Customization Support

Depending on the project, customization can include:

• Pulse Energy & Repetition Rate - match the 1535nm laser output to the ranging or sensing architecture.
• Mechanical Dimensions - evaluate compact packaging for space-constrained OEM equipment.
• Electrical & Driver Interface - coordinate laser driver, trigger and electrical connection requirements.
• Optical Interface - support integration with customer transmit optics and beam-conditioning systems.
• Connector & Cable Configuration - adapt to equipment-level integration requirements.
• Product Identification & Packaging - support OEM labeling and batch supply requirements.
• Technical Documentation - provide available datasheets, drawings and test data for engineering evaluation.

From System Requirement to Laser Module

Our custom 1535nm laser module selection process follows:

Application → 1535nm Wavelength → Required Pulse Energy → Repetition Rate → Beam Requirements → Mechanical/Electrical Interface → OEM Verification

For 1535nm laser rangefinder, LiDAR and industrial sensing projects, send us your required pulse energy, frequency, module size, beam parameters and electrical interface to evaluate a suitable OEM Erbium Glass laser source.

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