Indigo Laser For Compact, Eco-Friendly Systems

The indigo laser with 1.7 W power at 420 nm enables compact systems, mercury lamp alternatives, and industrial and communication applications.

Nuvoton Technology Corporation Japan (NTCJ) has introduced an indigo semiconductor laser with an optical output power of 1.7 W and a wavelength of 420 nm. It supports the miniaturization and cost reduction of optical systems. Combined with the company’s ultraviolet and violet semiconductor lasers, it offers a sustainable alternative to mercury lamps.

The indigo semiconductor laser delivers an optical output power of 1.7 W at 420 nm, enabling more compact and flexible optical systems design. Its proprietary optical and heat dissipation technology ensures high efficiency, long-term reliability, and reduced operating costs. Additionally, when combined with ultraviolet and violet semiconductor lasers, it is an alternative light source to mercury lamps for various industrial applications.

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Mercury lamps, commonly used in industrial applications like resin curing and exposure, face challenges such as large size, high power consumption, and environmental concerns due to mercury usage. Regulations in Japan and other countries are pushing for safer and more eco-friendly alternatives.

With its performance near the mercury lamp’s g-line (436 nm), the indigo semiconductor laser aims to address these issues. By combining it with their existing ultraviolet and violet lasers, NTCJ provides a complete, sustainable light source solution, reducing environmental impact and advancing optical system technology.

In manufacturing printed circuit boards (PCBs) and advanced semiconductor packages, high-power ultraviolet, violet, and indigo lasers enable maskless exposure of fine wiring patterns and solder resistance. With their high energy density, blue lasers are suitable for welding, engraving, and marking. High-power and high-efficiency lasers optimize manufacturing processes while improving product quality, making them a valuable solution in various industrial applications.

For additive manufacturing, commonly known as 3D printing, ultraviolet, violet, and blue lasers are suitable for processing materials like resin and metals, including copper and aluminium. In optical communication, high-power single-mode infrared lasers serve as excitation light sources for Erbium-Doped Fiber Amplifiers (EDFAs), enabling reliable, high-speed, and long-distance data transmission. This technology supports constructing robust optical communication networks with increased capacity and stability.