Multimode Laser Diodes

What is Multimode laser diodes?

Multi-mode laser diodes (Broad-area laser diode) are light sources that provide high output power, reaching up to tens of watts. Their multimode operation is achieved through a wide stripe geometry, which allows them to deliver high optical power. These lasers are available with various aperture sizes (30 µm, 90 µm, 130 µm, and 250 µm) and cavity lengths up to 5 mm. In their manufacturing process, p-side down soldering is used to manage challenges associated with high power dissipation and high current. Multi-mode laser diodes offer integration flexibility, and can be mounted in different packages, such as Submount, C-mount, and TO-can, as well as in fiber-coupled assemblies. These diodes are simple, cost-effective, and ideal for a wide range of applications.

Main applications of multi-mode laser diodes

Due to the wide aperture of multi-mode laser diodes, these devices generate a broader beam compared to single-mode laser diodes. While this reduces beam quality and focusability, it significantly increases power density. The robust performance of multi-mode laser diodes under high power conditions ensures long-term stability and reliability in demanding environments. With operation across different wavelengths, multi-mode lasers are customizable for specific applications in various industries:

• Medical Devices: Multi-mode laser diodes are used in medical applications such as laser therapy, aiding in targeted tissue treatments in dermatology and other fields. In laser surgery, doctors use them to precisely cut or remove tissue with minimal damage to surrounding areas. These diodes are also crucial in cancer treatments through photodynamic therapy.
• Industrial Material Processing: Multi-mode laser diodes are widely utilized in industrial material processing due to their high power output and efficiency. They excel at cutting and welding tasks, making them ideal for cutting through metals and joining parts. Additionally, they are used in surface treatment to enhance material properties, increasing strength and durability.
• Communications: Multi-mode laser diodes contribute to wireless energy transmission by enabling high-power, cable-free power delivery, a capability that is instrumental in developing contactless charging systems for drones, mobile robots, and IoT devices, as well as powering remote sensors and components in dynamic or hard-to-reach environments.
• Printing and Imaging: Multi-mode laser diodes enable high-speed laser printing of text and images on paper, and in 3D printing, they are used to build objects layer by layer. Their precision and speed are essential for both traditional and advanced printing applications, from prototypes to finished products.
• Pumping Solid-State and Fiber Lasers: Multi-mode laser diodes serve as pump sources for solid-state and fiber lasers.
• Research and Development: These diodes are invaluable in research and development due to their versatility and precision. They are utilized in a variety of sensors, including environmental and gas sensors, to support various sensing technologies. Scientists employ multi-mode laser diodes in material analysis to explore how materials interact with light, aiding in the development of new technologies. Their precise control over light and energy makes them ideal for advanced experiments across different fields.

Key features of multi-mode laser diodes

Innolume multi-mode laser diodes are engineered to deliver high-performance solutions across a wide range of demanding applications. With their robust output power, flexible wavelength options, and versatile packaging configurations, these diodes are designed to ensure maximum stability and ease of integration into any system. Our multi-mode laser diode products provide reliable, high-powered performance that is essential for various industries. Below are the key features that make our products ideal for advanced technological applications:

• High Output Power: Our multi-mode lasers can produce high optical power, reaching up to 15 W from a single emitter.
• Variety of Aperture Sizes and Cavity Lengths: We offer multi-mode lasers with aperture sizes ranging from 30 to 550 microns and cavity lengths up to 4.8 millimeters, providing flexibility to meet specific application needs.
• Flexibility in Integration: Multi-mode lasers can be mounted on submounts, C-mounts, TO-cans, and assembled into fiber-coupled modules (including multi-chip packages).
• Laser Bars: We provide laser bars with high output power from multiple single emitters, catering to the diverse needs of various applications.

The Innolume technical support team is always ready to assist you in selecting the right multi-mode laser diode for your needs and addressing any operational questions you may have. Feel free to contact us for any inquiries.