Fiber-Coupled Laser Diodes: Precision Optoelectronic Solutions Empowering Multiple Fields

Time: Jul 23, 2025 Author: Sintec Optronics View: 17

In today's rapidly developing optoelectronic technology, fiber-coupled laser diodes, with their high efficiency, stability, and high integration, have become core components in fields such as scientific research, medical care, and industry. As a professional manufacturer deeply engaged in this field, relying on years of technical accumulation and innovation, we have launched a range of fiber-coupled laser diode products covering multiple series and parameters, providing customized optoelectronic solutions for different scenarios.

Product Matrix: Multi-Series Layout Covering Full-Scenario Needs

Our fiber-coupled laser diode products are centered on "full parameter coverage and high adaptability", forming multiple series such as SBN, STHL, STCX, and STW, which fully meet the application needs from low power to high power, and from visible light to infrared bands.

  • SBN Series: Focusing on medium and high-power scenarios, the output power ranges from 10W to 750W, supporting stable wavelengths and multi-functional integration, suitable for industrial processing and laser pumping scenarios that require high energy output. Its wavelength range includes common bands such as 793nm, 808nm, and 915nm, and it can achieve efficient energy transmission with a fiber core diameter of 50-400μm.

  • STHL Series: Balancing power and precision, it has combinations of 30W high power with 50μm small core diameter, and also supports multi-wavelength customization (such as 450nm, 525nm, 808nm, etc.), widely used in lighting, Nd:YVO₄ laser pumping and other fields. For example, the STHL-808-150-105 model, with 150W power and 105μm fiber core diameter, is an ideal choice for high-power pumping.

  • STCX Series: Focusing on high stability and precision control, it includes VBG (Volume Bragg Grating) frequency-stabilized versions, with wavelength tolerance controllable within ±0.5nm and spectral width as low as 0.3nm, suitable for scientific research and high-end manufacturing scenarios with strict requirements on wavelength accuracy. For instance, the 976nm VBG series, with an output power of 250W and a 135μm fiber core diameter, can achieve low-noise and high-coherence laser output.

  • STW Series: Covering single-mode, multi-mode, and detachable fiber modules, it is the most flexible series in our products. The single-mode modules support 405nm to 1650nm bands, with output power ranging from 1mW to 100mW, and combined with 3-9μm fiber core diameters, can generate perfect Gaussian beams, suitable for biomedical and precision sensing applications; the multi-mode modules focus on high-power output (5mW to 50W), with fiber core diameters of 50-400μm, meeting the needs of industrial welding, material processing, etc.; the detachable fiber modules also support FC-PC interfaces, facilitating later maintenance and replacement, and providing great convenience for equipment integration.

Technical Core: Dual Guarantee of Precise Parameters and Reliable Performance

Our fiber-coupled laser diodes are technically centered on "precise control and stable operation", with key parameters meeting high industry standards:

  • Optical Performance: The central wavelength covers 405nm to 1920nm, and the wavelength tolerance can be controlled within ±0.5nm to ±20nm according to requirements; the output power ranges from 1mW (micropower) to 6kW (high power), meeting the energy needs of different scenarios; the spectral width (FWHM) is as low as 0.3nm, ensuring the monochromaticity and coherence of the laser.

  • Fiber Characteristics: Supporting multiple fiber core diameters from 50μm to 800μm, with a numerical aperture (NA) of 0.13-0.22, adapting to different transmission distances and energy density requirements; the fiber length can be customized from 0.5m to 5m, and the jacket diameter includes 0.9mm, 2mm, 3mm, and metal armoring, adapting to the durability requirements in complex environments.

  • Environmental Adaptability: The operating temperature range is 15-55℃, and the storage temperature range is -30-70℃. With optional TEC (thermoelectric cooling) and temperature control components, it can maintain stable output in extreme environments; the wavelength temperature coefficient is as low as 0.01nm/℃ (VBG series), ensuring wavelength stability during temperature fluctuations.

In addition, the products support a variety of optional functions, such as built-in photodiodes (PD) for power monitoring, red/green aiming beams for auxiliary positioning, and detachable fiber designs for easy maintenance, further enhancing the integration flexibility of the equipment.

Scenario Empowerment: Full-Scale Penetration from Scientific Research to Industry

With diversified products and reliable performance, our fiber-coupled laser diodes have been deeply integrated into multiple fields:

  • Scientific Research Field: Single-mode modules with small core diameters (50μm) and high power (30W) provide stable light sources for diode pumping and quantum optics experiments; products with bands such as 976nm and 1064nm have become core pumping sources for ytterbium (Yb) fiber lasers and solid-state lasers.

  • Medical Field: Multi-wavelength integrated modules (such as the combination of 808nm + 980nm + 638nm) can achieve precise tissue ablation and treatment, and combined with Gaussian beams of single-mode fibers, reduce damage to surrounding tissues.

  • Industrial and Lighting Fields: Products with visible light bands such as 450nm and 525nm, with high brightness and low attenuation characteristics, are suitable for high-end stage lighting and machine vision; high-power (such as 200W) infrared modules play the advantage of high-efficiency energy output in material cutting and surface treatment.

Brand Strength: Technical Accumulation and Quality Control

We support full-parameter customization services, which can adjust wavelengths, power, fiber specifications, etc. according to customer needs, truly realizing "customization on demand".

Whether it is precision experiments in scientific research laboratories or efficient operation of industrial production lines, our fiber-coupled laser diodes, with their characteristics of "full parameter coverage, high stability, and strong customization", have become the core driving force of optoelectronic systems. In the future, with the continuous iteration of technology, we will continue to deepen in the optoelectronic field and provide more innovative optical solutions for more industries.

For more information on our Fiber-coupled Laser Diodes, please click here.