1535nm Erbium Glass Lasers: Eye-Safe, High-Efficiency Optoelectronic Solutions

In the rapidly evolving field of optoelectronics, 1535nm erbium glass lasers (Er:glass Lasers) have emerged as a core light source in laser ranging, remote sensing, LiDAR, and other domains, thanks to their eye-safe properties, compact design, and exceptional performance. Our series of 1535nm erbium glass lasers, with innovative technology and reliable performance, provide efficient solutions for diverse application scenarios.

Core Advantages: A Perfect Balance of Safety and Performance

Operating at a wavelength of 1535nm, which falls within the eye-safe range, these laser systems ensure operational safety without the need for complex protective measures, while maintaining high beam power and quality. Our erbium glass lasers adopt diode pumping and passive Q-switching technology, combined with erbium glass as the gain medium, achieving short pulses (3-11ns), high peak power output, and excellent beam quality (M² ≤ 1.5, mostly TEM₀₀ fundamental mode), ensuring high precision in ranging and detection.

Meanwhile, these lasers offer strong environmental adaptability: they operate within a temperature range of -40°C to +65°C and can be stored at -55°C to +85°C, coping with extreme climatic conditions; their service life generally exceeds 10⁷ pulses, with some models even surpassing 60 million pulses, meeting the requirements of long-term stable operation.

Product Series: Scenario-Specific Solutions and Application Cases

SLY Series: Flexibility for Basic and Extended Needs

The SLY series is divided into models with and without beam expanders, covering a pulse energy range of 40uJ to 500uJ. Among models without beam expanders, those with 40uJ-200uJ energy feature a frequency of up to 1000Hz, a minimum beam diameter of 0.2mm, and a lightweight design (as low as 9g), making them suitable for portable devices sensitive to size and weight; the 300uJ-500uJ models, optimized with a 12A-18A current design, balance energy and stability, suitable for medium-range ranging.

SLY models with beam expanders (such as SLY-40uJ-A6 and SLY-100uJ-A8) further optimize the beam divergence angle (as low as 0.5mrad), enhancing stability in long-distance transmission, with energy stability controlled within 8%, making them ideal for high-precision radar systems.

Application Case: A manufacturer of outdoor handheld laser rangefinders selected the SLY-200uJ-C14 model. With its 10g lightweight design, 1-10Hz frequency adjustment capability, and 1535nm eye-safe wavelength, the device achieves precise ranging within 500m-3km in forestry surveys. Operators can work safely without wearing protective glasses, and the battery life is extended by 30% compared to traditional light sources.

STXL Series: Highly Integrated Professional Light Sources

The STXL series focuses on high repetition rates and integrated design. Its high-repetition-rate microchip laser modules offer pulse energy ranging from 10uJ to 50uJ, with a repetition rate of up to 5kHz. Operating at a low voltage of 2V and a working current of 5A, they achieve low power consumption, widely used in obstacle avoidance radar and meteorological radar.

STXL laser transmitters integrate a laser module, transmitting antenna, and photodiode, with pulse energy exceeding 100uJ, a beam divergence angle of <0.55mrad, and strong synchronous pulse signal capability, making them core components in LiDAR and laser remote sensing. Moreover, high-energy models (800uJ-1000uJ) deliver output power up to 1mJ without tail pulse interference, providing a reliable light source for long-distance laser rangefinders.

Application Case: In a UAV-mounted LiDAR system, the STXL laser transmitter (100uJ-10Hz model) maintains stable laser signal output in high-altitude strong air currents and sudden temperature changes, thanks to its <0.5mrad beam divergence angle and -40℃~+65℃ wide temperature adaptability. Combined with the integrated photodiode for real-time synchronization, it completes 3D modeling of mountain terrain with centimeter-level data accuracy.

SED Series: Breakthroughs in High Power and Stability

The SED series emphasizes high energy and high stability. The 500uJ model achieves efficient ranging with a narrow 5ns pulse and a 10mrad beam divergence angle, requiring no temperature control device and maintaining 10% pulse stability in a wide temperature range of -45°C to +65°C; the 2mJ model increases pulse energy to 2mJ with an 11ns pulse width and excellent photoelectric conversion efficiency, excelling in scientific research, industrial processing, and other fields. The series has passed rigorous shock (1500G) and vibration (20-2000Hz/20G) tests, ensuring reliable operation in complex environments.

Application Case: A meteorological observatory uses the SED-1535nm-800uJ-5Hz model as the light source for meteorological radar. With its 800uJ pulse energy and 7mrad beam divergence angle, it accurately detects cloud height and distribution density within 10km-20km. Coupled with its ability to withstand temperatures from -45℃ to +65℃, it operates continuously in cold winter regions and high-temperature desert environments, improving data collection accuracy by 20% compared to traditional radars.

Wide Applications: Empowering Technological Upgrades in Multiple Fields

The application scenarios of 1535nm erbium glass lasers continue to expand: in laser ranging, their precise pulse control and long-distance detection capability (covering 500m to 20km) enable rangefinders to achieve high-precision measurements; in LiDAR and remote sensing, their compact design and wide temperature resistance make them suitable for vehicle-mounted, airborne, and other mobile platforms; in meteorological radar and obstacle avoidance systems, their eye-safe properties and stable performance ensure safe and efficient operation of equipment.

As a key component in optoelectronic technology, 1535nm erbium glass lasers are driving continuous progress in intelligent sensing and long-range detection technology with their core advantages of "safety, efficiency, and reliability."

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