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1535nm Eye-safe Erbium Laser

The ERDI LASER® series features diode-pumped solid-state (DPSS) lasers based on self-developed Er:Glass or Er³⁺/Yb³⁺ co-doped phosphate glass gain media. Using semiconductor laser diode pumping and passive Q-switching technology, they deliver stable, narrow-pulse laser output at 1535 nm, a Class 1 eye-safe wavelength. These lasers offer compact size, wide temperature tolerance (-40°C to +65°C), and shock resistance, making them ideal for integration into LiDAR systems, laser rangefinders, and electro-optical designators.
High Frequency Laser Low-energy Laser High-energy Laser

Comparison

Erbium glass lasers (Er:Glass), as the most widely adopted 1535 nm eye-safe laser technology, are categorized by ERDI TECH LTD into three types based on output energy and repetition rate: high-frequency lasers, low-energy lasers, and high-energy lasers. Different applications require different pulse energy levels and repetition frequencies, and customers can refer to the parameter comparison table below to select the most suitable Er:Glass laser for their system.

High Frequency Laser

Module ER10 ER20 ER40 ER70
Pulse Energy  ≥10 μJ ≥20 μJ  ≥40 μJ  ≥70 μJ
Laser Pulse Width 5 ns 5 ns 4 ns 4 ns
Drive Pulse Width  ≤ 0.3ms ≤ 0.3 ms  ≤ 0.4ms  ≤ 0.4ms
Pulse Repetition Rate 5KHz 2.5 KHz 1KHz 500Hz
Wavelength 1535nm
Eyesafe Class 1
Pulse Stability 0.1
Directivity <0.2°
Raw Beam Diameter 0 .2 mm
Beam Divergence Angle ＜15 mrad
Beam Mode TEM00
Operating Temperature -45 ℃~+65 ℃
Storage Temperature -55 ℃~+85 ℃
Dimension (mm) 17×8×7
Weight 7 g
Voltage 2 V
Electric current 5 A
Impact 1500 G, 0 . 5 ms
Vibration 20~2000 Hz/20 G
Service life ＞5 million times

Low-energy Laser

Model MINI-100 ER100 ER200 ER300 ER400 ER500 ER800 ER900
Pulse energy ≥100 μJ ≥100 μJ ≥200 μJ ≥300 μJ ≥400 μJ ≥500 μJ ≥800 μJ ≥900 μJ
Laser Pulse width 3.5 ns 6 ns 5 ns 5 ns 6 ns 6 ns 7 ns 7 ns
Drive pulse width ≤ 1ms ≤ 2.4ms ≤ 2.4ms ≤ 2.4ms ≤ 2.4ms ≤ 2.4ms 3 ms 3 ms
Pulse repetition rate 1~10Hz 1~10Hz 1~10Hz 1~10Hz 1~10Hz 1~10Hz 1~10Hz 1~5Hz
Beam divergence angle ≤ 10 mrad ≤ 8 mrad ≤ 8 mrad ≤ 7 mrad ≤ 7 mrad ≤ 7 mrad ≤ 7 mrad ≤ 7 mrad
Dimension (mm³) 14.5×6.3×4.37 21×8×6.8 25×8×6.8 25×8×6.8 35×8×6.8 35×8×6.8 40×8×7.5 40×8×7.5
Weight 2.5 g 7 g 7 g 8.5 g 12 g 12 g 18 g 18 g
Electric current 12 A 8 A 10A 12A 15 A 15 A 30 A 30 A
Wavelength 1.54 μm
Eye Safe Class 1
Pulse Stability 0.1
Raw Beam Diameter 0.3mm
Beam Mode TEM00
Operating temperature -40 ℃ ~ +65 ℃
Storage temperature -55 ℃ ~+ 85℃
Voltage 2V
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

High-energy Laser

Model ER2000 ER4000 ER8000 ER10000
Pulse energy ≥ 2 mJ ≥ 4 mJ ≥ 8 mJ ≥ 10 mJ
Laser Pulse width 12 ns 12 ns 10 ns 6 ns
Raw Beam Diameter 0 .5 mm 0 .5 mm 0 .8 mm 0 .8 mm
Dimension (mm³) 60×25×13.5 60×25×13.5 110×40×24 110×40×24
Weight 105 g 105 g 220 g 220 g
Voltage 5 V 5 V 15 V 15 V
Electric current 65 A 65 A 80 A 80 A
Wavelength 1.54 μm
Eyesafe Class 1
Drive Pulse Width ≤ 4ms
Pulse Repetition Rate 1~5Hz
Pulse Stability 0.05
Beam Divergence Angle ≤ 4 mrad
Beam Mode TEM00
Operating Temperature -40 ℃ ~ +65 ℃
Storage Temperature -55 ℃ ~+ 75℃
Impact Meets MIL-STD-810G test standards
Vibration Meets MIL-STD-810G test standards
Service life ≥10 million times

  • High Frequency Laser

  • Low-energy Laser

  • High-energy Laser

Module ER10 ER20 ER40 ER70
Pulse Energy  ≥10 μJ ≥20 μJ  ≥40 μJ  ≥70 μJ
Laser Pulse Width 5 ns 5 ns 4 ns 4 ns
Drive Pulse Width  ≤ 0.3ms ≤ 0.3 ms  ≤ 0.4ms  ≤ 0.4ms
Pulse Repetition Rate 5KHz 2.5 KHz 1KHz 500Hz
Wavelength 1535nm
Eyesafe Class 1
Pulse Stability 0.1
Directivity <0.2°
Raw Beam Diameter 0 .2 mm
Beam Divergence Angle ＜15 mrad
Beam Mode TEM00
Operating Temperature -45 ℃~+65 ℃
Storage Temperature -55 ℃~+85 ℃
Dimension (mm) 17×8×7
Weight 7 g
Voltage 2 V
Electric current 5 A
Impact 1500 G, 0 . 5 ms
Vibration 20~2000 Hz/20 G
Service life ＞5 million times
Model MINI-100 ER100 ER200 ER300 ER400 ER500 ER800 ER900
Pulse energy ≥100 μJ ≥100 μJ ≥200 μJ ≥300 μJ ≥400 μJ ≥500 μJ ≥800 μJ ≥900 μJ
Laser Pulse width 3.5 ns 6 ns 5 ns 5 ns 6 ns 6 ns 7 ns 7 ns
Drive pulse width ≤ 1ms ≤ 2.4ms ≤ 2.4ms ≤ 2.4ms ≤ 2.4ms ≤ 2.4ms 3 ms 3 ms
Pulse repetition rate 1~10Hz 1~10Hz 1~10Hz 1~10Hz 1~10Hz 1~10Hz 1~10Hz 1~5Hz
Beam divergence angle ≤ 10 mrad ≤ 8 mrad ≤ 8 mrad ≤ 7 mrad ≤ 7 mrad ≤ 7 mrad ≤ 7 mrad ≤ 7 mrad
Dimension (mm³) 14.5×6.3×4.37 21×8×6.8 25×8×6.8 25×8×6.8 35×8×6.8 35×8×6.8 40×8×7.5 40×8×7.5
Weight 2.5 g 7 g 7 g 8.5 g 12 g 12 g 18 g 18 g
Electric current 12 A 8 A 10A 12A 15 A 15 A 30 A 30 A
Wavelength 1.54 μm
Eye Safe Class 1
Pulse Stability 0.1
Raw Beam Diameter 0.3mm
Beam Mode TEM00
Operating temperature -40 ℃ ~ +65 ℃
Storage temperature -55 ℃ ~+ 85℃
Voltage 2V
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
Model ER2000 ER4000 ER8000 ER10000
Pulse energy ≥ 2 mJ ≥ 4 mJ ≥ 8 mJ ≥ 10 mJ
Laser Pulse width 12 ns 12 ns 10 ns 6 ns
Raw Beam Diameter 0 .5 mm 0 .5 mm 0 .8 mm 0 .8 mm
Dimension (mm³) 60×25×13.5 60×25×13.5 110×40×24 110×40×24
Weight 105 g 105 g 220 g 220 g
Voltage 5 V 5 V 15 V 15 V
Electric current 65 A 65 A 80 A 80 A
Wavelength 1.54 μm
Eyesafe Class 1
Drive Pulse Width ≤ 4ms
Pulse Repetition Rate 1~5Hz
Pulse Stability 0.05
Beam Divergence Angle ≤ 4 mrad
Beam Mode TEM00
Operating Temperature -40 ℃ ~ +65 ℃
Storage Temperature -55 ℃ ~+ 75℃
Impact Meets MIL-STD-810G test standards
Vibration Meets MIL-STD-810G test standards
Service life ≥10 million times

Related Insights

Introduction
The 1535nm erbium glass laser with eye-safe wavelength is a diode-pumped solid-state laser that uses erbium-doped glass (Er) as the gain medium, with an output wavelength of 1535nm.
Application
In recent years, the 1535nm wavelength laser has emerged in various fields thanks to its eye - safe wavelength.
Market Outlook
With its dedicated focus on erbium glass laser technology, ERDI TECH LTD is well-positioned to become a leader in innovation within the field of precision instrumentation.
Erbium Laser vs. CO₂ Laser
Among these, erbium laser and CO₂ laser stand out as the two most widely used types in the cosmetic laser market, exhibiting significant differences in principles, characteristics, and application scenarios.

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