LMA-EYDF-25P/300-HE Double-Clad Fiber PLMA-EYDF-25P/300-HE
Coherent/Nufern LMA-EYDF-25P/300 double-clad Er/Yb-codoped fiber is described as an industry-first true large-mode-area Er/Yb fiber. Its unique low-NA0.09 codoped core preserves high pump-conversion efficiency and targets high power with near-single-mode beam quality.
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Overview
Coherent/Nufern LMA-EYDF-25P/300 double-clad Er/Yb-codoped fiber is described as an industry-first true large-mode-area Er/Yb fiber. Its unique low-NA0.09 codoped core preserves high pump-conversion efficiency and targets high power with near-single-mode beam quality.
Specifications
| Parameter | Value |
|---|---|
| Operating Wavelength (General Conditions) [Under General Conditions] | 1550nm band |
| Cladding Absorption @915nm under General Conditions [@915nm under normal conditions / under normal conditions; @915nm under normal conditions] | 2.9±0.5 dB/m |
| Peak Core Erbium Absorption @1535nm [@1535nm;@ 1535nm] | 85.0±15.0 dB/m |
| Core Numerical Aperture (General) [Normal] | 0.090 |
| Cladding Numerical Aperture (General) [Normal] | 0.46 |
| Birefringence | 1.5x 10⁻⁴ |
| Core Diameter | 25±3 μm |
| Cladding Diameter | 300±8 μm |
| Inner Cladding Shape | Circular |
| Coating Diameter | 400±15 μm |
| Coating Material | Low-Refractive-Index Polyester |
| Proof Test Level (Bend-Radius Method) [Radius Bending Method] | 100kpsi (0.7GN/m²) |
Applications
Fiber lasers and fiber amplifiers at eye-safe (1.5um) wavelengths; military and commercial lidar (LIDAR); ultrashort-pulse fiber amplifiers; high-peak-power pulsed fiber lasers.
Key Features
High-NA0.46,300um cladding waveguide accepts high pump power with efficient coupling. The large25um core maintains a large mode field and permits shorter fiber, reducing nonlinear SBS and SRS. The family description lists PM and non-PM versions and matching undoped fibers for complementary components. Proof testing100kpsi supports long-term reliability under coiling for mode filtering. Family features (PANDA stress structure applies to PM versions): A distinctive low-numerical-aperture core design provides single-mode beam output. A large mode-field diameter raises the threshold for nonlinear effects. An optimized high-power core glass composition suits high-power fiber lasers and amplifiers. PANDA stress regions increase birefringence for outstanding optical performance and batch consistency. All fibers are proof-tested to ≥100kpsi, which is essential for long-term reliability when coiled for mode filtering.
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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