When your LDI system requires stable optical power, precise energy delivery, and continuous operation, choosing the right High Power laser diode module becomes critical. A laser source that cannot maintain output stability can affect photoresist exposure, imaging consistency, and production efficiency. For PCB manufacturing and other high-resolution imaging applications, you need a laser module that combines high optical power with controlled fiber coupling and reliable thermal management.
The BU-LASER 405nm 100W fiber coupled laser diode module is designed specifically for demanding LDI exposure applications. It delivers 100W output at 405nm, uses water cooling, supports RS-485 communication, and provides 80–85% coupling efficiency for integration into industrial laser systems.
Why Choose a High Power Laser Diode Module for LDI?
Laser Direct Imaging (LDI) systems use controlled laser energy to expose patterns directly onto photosensitive materials. The laser source therefore needs to provide consistent power and wavelength performance throughout extended operating periods.
A 405nm 100W laser module is particularly suited to applications where ultraviolet exposure and high optical intensity are required. You can use this type of source for:
- PCB direct imaging and photoresist exposure
- Flexible circuit manufacturing
- High-resolution lithography
- Photomask processing
- UV curing applications
- Semiconductor-related manufacturing processes
The 405nm wavelength is well suited to photoresist-sensitive applications, while the 100W output provides the optical power required by high-throughput industrial equipment.
405nm 100W Fiber Coupled Laser Diode Module Specifications
BU-LASER integrates multiple 405nm laser diode modules and couples their outputs into a fiber bundle. The integrated design also includes a precision coupling lens, water-cooling system, and driver with RS-485 communication.
| Parameter | Specification |
|---|---|
| Wavelength | 405nm |
| Output Power | 100W |
| Working Voltage | 24V |
| Fiber Core Diameter | 105μm |
| Fiber Length | 3m, customizable |
| Fiber Interface | FC connector / SMA 905, customizable |
| Coupling Efficiency | 80–85% |
| Lifespan | >10,000 hours |
| Cooling | Water cooling |
| Communication | Integrated RS-485 |
This configuration gives you several practical advantages when integrating a 405nm fiber coupled laser diode into an LDI machine. The fiber interface can be customized, while water cooling helps manage thermal load during extended operation.
High Power Laser Diode Module vs. Standard Laser Module
Not every laser module is suitable for high-power exposure equipment. When selecting a laser source, you should compare the optical output, cooling method, coupling structure, and integration requirements rather than focusing only on nominal wattage.
| Feature | Standard Laser Module | BU-LASER 405nm 100W Module |
|---|---|---|
| Wavelength | Various | 405nm UV |
| Optical Power | Typically lower | 100W |
| Fiber Coupling | Application dependent | 80–85% |
| Cooling | Air or passive | Water cooling |
| Communication | May require external driver | Integrated RS-485 |
| Fiber Interface | Fixed on some models | FC / SMA 905 customizable |
| LDI Application | Model dependent | Designed for LDI exposure |
| Customization | Varies | OEM/ODM available |
For an LDI machine, these differences matter because the laser source must work as part of a larger optical and electronic system.
How to Integrate a 405nm Laser Module for LDI
Before purchasing a high power 405nm laser diode module, you should confirm the optical and mechanical requirements of your equipment.
- Define the required wavelength and optical power.
Confirm that 405nm and 100W match your photoresist, exposure process, and optical design. - Check the fiber interface.
Select the appropriate FC connector or SMA 905 configuration and confirm the required fiber length. - Evaluate thermal management.
For 100W optical output, verify that your system can accommodate the module’s water-cooling requirements. - Confirm electrical communication.
Check the 24V operating requirement and determine how the integrated RS-485 communication will connect with your control system. - Validate the complete optical path.
Confirm fiber coupling, beam delivery, alignment, and exposure performance before full-scale deployment.
Why Work With BU-LASER?
Dongguan Blueuniverse Laser Co., Ltd. has specialized in semiconductor laser technology since 2010. The company combines R&D, production, and sales and provides laser diodes, laser modules, fiber-coupled lasers, and semiconductor laser light sources covering 375nm to 980nm.
For OEM and ODM projects, you can work with BU-LASER on customized laser solutions rather than selecting only standard catalog products.
Key company capabilities include:
- 15+ years of laser R&D experience
- 80+ patents, including 14 invention patents
- OEM and ODM laser module services
- 375nm–980nm laser product range
- ISO9001:2015 quality management system
- TUV, BV, and SGS certifications
- Experience in LDI, PCB exposure, 3D scanning, security, medical aesthetics, and other applications
BU-LASER also developed its 405nm high-power fiber-coupled laser in 2019, specifically addressing the requirements of LDI development and exposure applications. In 2021, its 405nm fiber-coupled laser received third place in the China Laser Golden Light Award.
FAQ
1. What is a 405nm 100W laser module used for?
A 405nm 100W laser module can be used for LDI exposure, PCB direct imaging, lithography, UV curing, and other applications requiring high-power ultraviolet laser output.
2. Why does this laser module use water cooling?
A 100W optical source generates significant thermal load. Water cooling helps manage operating temperature and supports stable performance during extended industrial operation.
Conclusion
Selecting the right High Power laser diode module means matching optical power, wavelength, fiber coupling, cooling, communication, and application requirements. For LDI and PCB exposure systems, the BU-LASER 405nm 100W fiber coupled laser diode module provides a purpose-built combination of 405nm UV output, 100W optical power, 80–85% coupling efficiency, water cooling, RS-485 communication, and customizable fiber interfaces.
CTA
If you are developing an LDI machine or upgrading an existing exposure system, contact Dongguan Blueuniverse Laser with your required wavelength, optical power, fiber interface, cooling configuration, and integration requirements. BU-LASER can provide technical consultation and OEM/ODM support for your specific laser application.
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