FUD-3793 MM-GDF-25/400-11FA Double-Clad Fiber
Coherent/Nufern passive multimode double-clad fibers are ideal for fiber lasers and amplifiers with fully integrated all-fiber designs. Based on a 25 um core, 400 um cladding and low numerical aperture of 0.11, this series is designed to match active 25/400 large-mode-area thulium-doped fibers and is specifically developed for the long-wavelength eye-safe window of 1900–2100 nm. All fibers use the latest NuCOAT coating technology to ensure high slope efficiency, longer service life and excellent beam quality for today's industrial fiber-laser applications.
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Overview
Coherent/Nufern passive multimode double-clad fibers are ideal for fiber lasers and amplifiers with fully integrated all-fiber designs. Based on a 25 um core, 400 um cladding and low numerical aperture of 0.11, this series is designed to match active 25/400 large-mode-area thulium-doped fibers and is specifically developed for the long-wavelength eye-safe window of 1900–2100 nm. All fibers use the latest NuCOAT coating technology to ensure high slope efficiency, longer service life and excellent beam quality for today's industrial fiber-laser applications.
Specifications
| Parameter | Value |
|---|---|
| Operating Wavelength (General Conditions) [Under General Conditions] | 1900-2100 nm |
| Core Numerical Aperture | 0.11±0.01 |
| Cladding Numerical Aperture (5%) | ≥0.46 |
| Cladding Loss at Approximately 1100 nm [At Approximately 1100 nm; At Approximately 1100 nm] | ≤18 dB/m |
| Core Diameter | 25.0±2.5 μm |
| Cladding Diameter (Flat-to-Flat) [flat-to-flat] | 400.0±15.0 μm |
| Coating Diameter | 550.0±20.0 μm |
| Proof Test Level (Bend-Radius Method) [Radius Bending Method] | ≥100kpsi (0.7GN/m²) |
Applications
Fully integrated all-fiber high-power fiber lasers and fiber amplifiers. High-power fiber couplers, fiber combiners and fiber Bragg gratings. Pigtails for high-power pump lasers. Output fibers for high-power fiber amplifiers and lasers.
Key Features
NuCOAT coating technology improves durability and reliability during operation and storage in extreme environments. Excellent consistency and core/cladding concentricity provide low connection loss. All fibers are proof-tested above 100 kpsi, which is essential for long-term reliability when the fibers are coiled.
Datasheet
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Supplier Information
Shanghai Connet Fiber Communication Technology Co., Ltd. was founded in 2003 and is a high-tech enterprise specializing in the research, development, and production of laser light sources, fiber lasers, fiber amplifiers, and related products. Currently, the company has formed four major series of products led by laser light sources, fiber lasers, fiber amplifiers, and fiber gratings, including laser light sources of various wavelengths, single-frequency lasers, high-power fiber amplifiers, single-frequency polarization-maintaining fiber amplifiers, continuous and pulsed fiber lasers, high-power fiber gratings, phase-shifted gratings, chirped gratings, and other related products, providing innovative products and solutions for the research and development of high-performance fiber lasers, LiDAR, fiber sensing, fiber communication, test and measurement, scientific research, and other fields.
Shanghai Connet is committed to continuously providing globally leading technologies and products, serving fields including: special fiber applications, fiber laser research and industrialization, fiber sensing and fiber optic gyroscope research, LiDAR applications, and laser industrial applications.
The philosophy of Shanghai Connet Fiber Communication Technology Co., Ltd. is: continuously introducing globally leading technologies and products, and fully providing support and assistance to domestic users. After years of accumulation and development, the company has formed a series of products led by single-frequency fiber lasers, pulsed fiber laser light sources, high-power fiber amplifiers, and special fiber lasers, providing innovative product solutions for LiDAR, fiber sensing, coherent and spectral synthesis, research, testing and measurement of high-performance fiber lasers, spectral analysis, fiber communication, and other fields.
Shanghai Connet Laser Technology Co., Ltd. is a wholly-owned subsidiary of Shanghai Connet Fiber Communication Technology Co., Ltd. It is a high-tech enterprise specializing in the research, development, and production of laser light sources, fiber lasers, fiber amplifiers, and related products, founded in 2007. Since its establishment, Shanghai Connet Laser Technology Co., Ltd. has been guided by technological innovation, committed to providing products and services representing cutting-edge technology and future development trends for scientific research and production applications in industrial lasers, LiDAR, fiber sensing, fiber communication, and other fields. After years of accumulation and development, the company has formed three major series of products led by laser light sources, fiber lasers, and fiber amplifiers, including laser light sources of various wavelengths, high-power fiber amplifiers, single-frequency polarization-maintaining fiber amplifiers, continuous and pulsed fiber lasers, and other related products, providing innovative product solutions for the research and development of high-performance fiber lasers, test and measurement, spectral analysis, coherent synthesis, LiDAR, fiber sensing, fiber communication, and other fields.
"Looking to the future, pursuing quality; independent innovation, striving for excellence" is the development philosophy that Shanghai Connet Laser Technology Co., Ltd. has adhered to since its founding. We take quality pursuit as the core, rely on a professional R&D team and advanced concepts, continuously develop and innovate, strive for excellence, and shoulder social responsibility, seeking long-term development.
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