Fiber-coupled laser diodes are a type of laser diode where the light generated by the diode is coupled into an optical fiber. This allows the output to be delivered directly to the work area where it is needed, as opposed to free-space output (transmitted through open air or a vacuum). The light exiting the fiber has a circular and smooth intensity profile and a symmetric beam quality, which is often very convenient.
These are laser diodes where the output is coupled into an optical fiber. The laser diode generates the light, and the fiber is used to deliver this light to the point of use. The benefits of a controlled light profile, system flexibility, integration with fiber-optic components, thermal management, and safety all apply to fiber-coupled laser diodes.
It’s important to note that while fiber lasers also utilize optical fiber, the fiber in a fiber laser is doped with a gain medium, and the laser light is generated within the fiber. This differs from a fiber-coupled laser diode, where the laser light is generated in the diode and then coupled into the fiber for delivery.
This beam delivery method has several advantages that make fiber-coupled lasers a popular choice in many applications.
Controlled Light Profile:
One of the primary benefits of fiber-coupled lasers is their control over the light profile. The output light is circular, smooth, and has a consistent beam quality. This makes it easier to work with, especially in applications that require precision. The beam can be accurately focused onto a small area, allowing for high precision and control in tasks such as cutting and engraving.
Fiber-coupled lasers offer a high degree of flexibility. If a laser diode fails, it can be replaced without affecting the alignment of the entire system. This is a significant advantage in terms of maintenance and longevity of the system. Additionally, using fiber allows for remote delivery of the laser light, meaning the laser diode can be placed at a distance from the point of application.
Integration with Fiber-Optic Components:
Fiber-coupled lasers can be easily integrated with other fiber-optic components. This makes them a versatile choice for many applications. For example, they can be combined with fiber amplifiers to boost the power of the laser light or with fiber gratings to stabilize the wavelength of the laser light.
Fiber-coupled lasers also offer advantages in terms of thermal management. The fiber helps to dissipate heat generated by the laser diode, reducing the need for extensive cooling systems. This can be particularly beneficial in high-power applications, where managing heat is a significant challenge.
The use of fiber in these lasers also adds an element of safety. The laser light is confined within the fiber, reducing the risk of accidental exposure to harmful laser radiation.
Our Fiber-Coupled Laser Diode Products
RPMC offers fiber-coupled laser diode packages in a wide range of wavelengths and output power options for various applications in the Defense & Aerospace, Industrial & Manufacturing, Medical & Healthcare, and Research & Biophotonics industries. With many wavelengths from the UV through the SWIR range, and output powers up to 100s of watts and even kW for our direct diode turnkey fiber-coupled lasers, we’re sure to have a solution that fits your needs among our standard and customizable products.
RPMC provides a large selection of fiber-coupled laser diode types:
Use the filters below to help narrow down your search or contact us to discuss your needs and let us help narrow down your search!
Fiber-Coupled Laser Diode Applications
Fiber-coupled laser diodes are widely used across various industries due to their numerous advantages. They offer a controlled light profile, system flexibility, easy integration with fiber-optic components, efficient thermal management, and enhanced safety.
Defense & Aerospace:
In these sectors, fiber-coupled lasers are crucial for target designation, range finding, and countermeasures. They provide precise targeting and distance measurement capabilities, which are essential for modern defense systems. Additionally, their compact size and efficient thermal management make them ideal for use in aerospace applications where weight and space are at a premium.
Industrial & Manufacturing:
Fiber-coupled lasers are widely used in materials processing tasks such as cutting, engraving, and welding. Their high precision and controlled light profile allow for accurate and efficient processing of a wide range of materials, from non-ferrous metals to plastics. Furthermore, their flexibility and easy integration with other systems make them a popular choice in automated manufacturing processes.
Medical & Healthcare:
In the medical field, fiber-coupled laser diodes are used in a variety of therapeutic applications and surgical procedures. Their precise and controlled light output is ideal for delicate procedures such as laser eye surgery. Additionally, they are used in various therapeutic applications, such as photodynamic therapy for cancer treatment, where the controlled light profile allows for targeted treatment of cancer cells.
Research & Biophotonics:
Fiber-coupled lasers play a crucial role in research applications such as spectroscopy and microscopy. Their high brightness and stable output make them ideal for these applications, where precise and consistent measurements are required. In biophotonics, they are used in applications such as fluorescence microscopy and flow cytometry, where their ability to produce specific wavelengths of light is essential.
How Can We Help?
If you have any questions, or if you would like some assistance choosing a fiber-coupled laser diode, please Contact Us here. Furthermore, you can email us at [email protected]to talk to a knowledgeable Product Manager.
Alternatively, use the filters on this page to assist in narrowing down the selection of fiber-coupled laser diodes for sale. Also, head to our Knowledge Center with our Lasers 101 page and Blogs, Whitepapers, and FAQ pages for further, in-depth reading.
The JOLD-FC series of high-power fiber-coupled laser diode arrays (bars) are fully customizable and available at various levels of integration, providing a cost-effective solution for OEM applications. With superior reliability and efficiency, our lasers offer industry-leading performance. We offer standard wavelengths of 808, 940, 980, and 1470 nm, with 200, 400, or 600 µm fiber core diameters. You can also choose between pilot lasers, monitor diodes, and integrated Peltier elements.
The LDX Series of made-in-the-US, high-power, multimode laser diodes provide wavelengths from 400nm – 1900nm, a wide range of output powers and package types, as well as completely customized solutions. We have been offering these high-quality laser diodes for over 25 years. The performance, reliability, and lifetimes are time tested, and if for some reason there is an issue, we will make it right.
The RPK Series of multiple, single-emitter fiber-coupled diode lasers are available in wavelengths from 405nm thru 1550nm with up to ≈ 500W output power. Our specialized fiber-coupling techniques ensure high efficiency, stability, and superior beam quality, while rigorous inspections and burn-in procedures guarantee each product’s reliability, stability, and long lifetime. Highly customizable packages allow us to meet our customers’ specific needs, providing high-quality products at reasonable prices.
The RPKBDL Series is a high-power direct diode turn-key system available in wavelengths of 445nm, 915nm, or 976nm, providing up to 3kW of power and unprecedented brightness. Its pluggable design makes maintenance easy, avoiding troubles and high time costs caused by return-to-factory maintenance. The RPKBDL series results from continuous innovation, ensuring high technical strength and product quality. This highly customizable system allows us to meet our customers’ specific needs, providing high-quality products at reasonable prices.
The RWLP series offers an affordable and versatile solution for your laser application needs with single-mode and multimode options and wavelengths from 405nm thru the IR region. With customizable options, our team can work with you to solve any challenges you may face. Rigorously tested for long-term reliability, the RWLP series ensures consistent performance and high beam quality. Perfect for integration, this series supports multiple applications including biological and analytical instrumentation.
The SMX Series of US-made, high-power, thermally stable, and cost-effective InP laser diodes is available at 1470, 1550, and 1940 nm, perfect for medical, military, aerospace, LIDAR, free-space communication, and more! With a patented EPI structure, low-cost packaging, ISO certified supply chain with full lifecycle traceability, focus on ease of integration, and custom design capabilities, this laser diode family is an excellent choice for reliable, high-power InP devices.
The RWLS series of RGB White Laser Diodes offers customizable, versatile, and reliable solution for your laser applications. Available in a wide range of power levels, with three base wavelengths: 635 nm (Red), 520nm (Green), and 445nm (Blue), the RWLS series can be tailored to your exact specifications. Typically packaged in a pigtailed HHL configuration, with built-in TEC, there are also plenty of customization options including wavelength, power, and packaging.