High Power UV Laser 15W 375nm Fiber Coupled Diode Laser Module for LDI Technology

High Power UV Laser 15W 375nm Fiber Coupled Diode Laser Module for LDI Technology

This 15W 375nm high-power fiber-coupled ultraviolet diode laser module is specifically developed for PCB LDI laser direct imaging processes. Its 375nm short-wavelength ultraviolet light perfectly matches the absorption spectrum of high-end dry film and IC substrate photoresists. The flexible fiber output is compatible with multi-head, large-format LDI exposure equipment, providing stable and uniform ultraviolet energy output for high-precision imaging of ultra-fine lines ranging from 20–50μm. It is widely used in HDI boards, FPC flexible circuits, and automotive PCB solder mask digital direct-write exposure.

II. Core Hardware Configuration

Fiber Optic Structure: Integrated bundled multimode fiber in a single package, non-pluggable fixed fiber, coupling efficiency ≥85%, excellent beam uniformity, compatible with galvanometers/linear scanning optical paths;

Cooling System: Built-in integrated water-cooling structure, water-cooling circulation quickly removes heat from the bundled LD, minimizing power drift during long-term continuous operation;

Protection Circuit: The entire unit integrates triple hardware protection against over-temperature, over-voltage, and over-current. Automatic power reduction and shutdown in case of abnormal temperature/voltage fluctuations prevent laser tube burnout;

Drive Control: Equipped with built-in 0–24V analog modulation, coupled with a standard RS485 industrial communication interface, supporting real-time power adjustment, status reading, and fault feedback from the host computer;

Circuit Design: Adopts a constant current drive scheme to meet the long-term continuous exposure conditions of LDI equipment.