大有效面积非零色散位移光纤在长距离大容量系统中的应用  

LEAF TM Optical Fiber for High Capacity Long Distance Systems

作　　者：刘燕明 李懋循 萧越 蔡及时 

机构地区：[1]美国康宁公司

出　　处：《光纤与电缆及其应用技术》1998年第3期10-14,共5页Optical Fiber & Electric Cable and Their Applications

摘　　要：为了进一步提高系统容量和改善系统性能，我们利用外气相沉积（ＯＶＤ）工艺，设计并制作了大有效面积非零色散位移光纤，称为康宁ＬＥＡＦＴＭ光纤。这种光纤有效面积高达９５μｍ２，而普通ＮＺＤＳＦ光纤为５５μｍ２。由于大有效面积非零色散位移光纤具有较高的额定最大功率，其直接效益之一就是可改善系统信噪比和加大放大器间隔。就陆地系统应用而言，ＬＥＡＦ已被用于４５０ｋｍ长放大ＷＤＭ的传输实验中，在红段以８×１０Ｇｂ／ｓ的速率和在蓝段以４×１０Ｇｂ／ｓ的速率实现了４５０ｋｍ（５×９０ｋｍ）无误码传输。对于全光纤网络应用，ＬＥＡＦ比普通ＮＺＤＳＦ的传输距离增加了２５％。To further increase system capacity and improve system performance, we have designed and fabricated non zero dispersion shifted large effective area fiber (LEAF TM ) using the Outside Vapor Deposition (OVD) technique. Effective area as large as 95μm 2 have been achieved, as compared to 55μm 2 for conventional NZDSF. The benefits of large effective area fibers are higher power handling capability for improved system signal to noise ratio (SNR), and longer amplifier spacing. For terrestrial system application, LEAF optical fiber has been used in 450km long amplified WDM transmission experiments. Error free transmissions of 8×10Gb/s in the EDFA red band and 4×10Gb/s in the EDFA blue band have been achieved over 450km. For all optical network application, LEAF optical fiber can propagate signals over 25% longer distance compared to conventional NZDSF.

关 键 词：大有效面积 NZDSF 光纤传输线 

分 类 号：TN818[电子电信—信息与通信工程]