WA-6 Series Water Cooled Diode Laser Array

Product Introduction of WA-6 Series Water-Cooled Diode Laser Arrays
The WA-6 series water-cooled diode laser arrays are high peak power laser devices independently developed by Beijing Real-Light Technology Co., Ltd. Designed with four stacked arrays arranged in a straight line and supporting quasi-continuous laser output, the products feature compact packaging, hard-solder packaging technology, high power and high reliability. As core laser light sources for industrial pumping, biomedicine, scientific research and other fields, they support diversified customization of wavelength, structure, wiring and more to meet the system integration demands of differentiated applications.

Core Product Advantages and Features
Fully optimized in structural design, packaging process, output performance and expandability, this series delivers outstanding comprehensive performance to meet requirements of long-term stable operation and various working conditions:
1.Compact packaging structure
Adopting a linear layout of four stacked arrays with precise group spacing, the device boasts a small overall size and high space utilization. It can be easily embedded into various laser equipment and optical systems, greatly lowering the difficulty of overall machine integration, assembly and layout arrangement.
2.Hard-solder packaging for high durability
The mature industrial hard-solder packaging technology effectively improves the device’s resistance to aging and thermal shock, alleviates performance attenuation after long-hour operation, greatly extends service life, and guarantees round-the-clock stable equipment operation.
3.High peak power output
Single laser bar output power options are 100W and 250W, and the maximum peak power of the whole array reaches 3000W. With high power density and sufficient energy supply under quasi-continuous operation, it fully satisfies the demands of high-power laser pumping and optical experiments.
4.High reliability and wide compatibility
Equipped with an efficient water cooling system and mature optical path design, the module operates stably with excellent electro-optical conversion efficiency. It supports multiple customized specifications to flexibly match application scenarios with different wavelengths, laser bar configurations and installation methods.

Technical Specifications
All parameters below are typical values tested at 25°C ambient temperature. The final parameters of products shall be subject to factory test reports, and a full range of personalized customization services are available.
The standard central wavelength is 790~812 nm with a wavelength tolerance of ±3 nm, the spectral width (FWHM) is no more than 6 nm, and the wavelength temperature drift coefficient is approximately 0.3 nm/°C. It maintains stable beam divergence angles, with a typical fast-axis divergence angle of 40° and slow-axis divergence angle of 10°. The series consists of 6 groups of laser bar arrays with a group spacing of 0.5 mm, divided into two major power versions with single bar power of 100W and 250W, corresponding to maximum peak power of 1800W and 3000W respectively. The 100W version is equipped with 1~3 bars per group at a bar spacing of 0.43 mm, while the 250W version has 1~2 bars per group at a bar spacing of 0.55 mm. In terms of electrical performance, the overall electro-optical conversion efficiency is ≥50%, and the operating voltage of each single bar is ≤2.1 V. For 100W bars, the threshold current is ≤20 A and the operating current is 120 A; for 250W bars, the threshold current is ≤30 A and the operating current is 220 A. The device works in quasi-continuous mode with a maximum duty cycle of ≤3%, a maximum pulse width of 300 μs, and a maximum repetition frequency of no higher than 100 Hz. For heat dissipation and environmental adaptability, the product adopts water cooling with a required water flow rate of no less than 5 L/min and a water supply pressure of ≤0.5 MPa. The normal operating temperature ranges from 10°C to 40°C, and the storage temperature ranges from -20°C to 60°C.

Main Application Fields
1.Industrial Pumping
As a dedicated pump source for solid-state lasers, fiber lasers and other equipment, its high peak power, uniform beam output and high electro-optical conversion efficiency ensure efficient operation of laser systems. It is widely used in industrial scenarios such as laser processing and supporting laser equipment.
2.Biomedical Treatment
With stable laser output parameters and excellent beam quality, it meets the application standards of laser physical therapy, medical optical detection, cosmetic laser equipment and other medical fields, serving as a preferred light source for medical laser systems.
3.Scientific Research
Featuring a wide adjustable parameter range and stable and reliable operation, it is suitable for laser physics experiments, spectral analysis, basic optical research and other projects in universities and research institutes, and can satisfy strict requirements of various precision scientific research experiments.

Product Customization and Service Instructions
1.Customization Services: Custom wavelengths within the range of 940nm~960nm are supported. We can adjust the number of bars per group and bar spacing as required, and installation modes and wiring forms can also be customized on demand to fully match various customized optical system solutions.
2.Quality Assurance: All products undergo comprehensive and strict inspections before delivery. Each unit is delivered with an official factory test report to strictly control parameter accuracy and ensure consistent performance and qualified quality of batch products.
3.Technical Support: Backed by the company’s complete R&D, production and after-sales service system, we provide full-process technical services including product selection, optical path integration, water cooling system commissioning, as well as installation and wiring guidance.