材料科学
纤维
铒
色散位移光纤
波分复用
光放大器
光学
放大器
光电子学
兴奋剂
波长
物理
光纤传感器
复合材料
激光器
CMOS芯片
作者
qiang qiu,zhimu Gu,le He,yingbo chu,nengli dai,jinyan li
摘要
We numerically and experimentally demonstrated a low different modal gain (DMG) 4-LP modes L-band few-mode fiber amplifier by using an extremely simple fiber structure. The optimization effect of FM-EDF core radius on DMG performance and gain was numerically studied. An FM-EDF was fabricated by modified chemical vapor deposition (MCVD), for which the NA was improved to 0.25 and the core radius was properly selected to 8.1 μm. In the case of core pumping of the LP11 mode at 1480 nm, an e DMG of ~0.7 dB and the gain of <17 dB was obtained for all four modes at 1570 nm. The results suggested that our proposed erbium-doped fiber amplifier has great potential for large-capacity long-haul mode division multiplexing (MDM) transmission system.
科研通智能强力驱动
Strongly Powered by AbleSci AI