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掺铒光纤主要用来制作掺铒光纤放大器(EDFA)和掺铒光纤宽带光源(EDFS),在制作工艺上有液相掺杂、气相掺杂和螯合物掺杂,鉴于国内现有的设备条件和技术,近年来在研制掺铒光纤的过程中,采用了传统的液相掺杂制作工艺,但对其进行了大胆的改进和优化,在掺铒光纤制作工艺上取得了重大进展,光纤参数明显提高,与国外的同类型光纤比较,差距大幅度缩小,主要参数已达到或接近国外同类型掺铒光纤水平,本底损耗达到3.74dB/km,数值孔径为0.236,980nm吸收损耗达到6.05dB/m,在相当程度上已能够满足国内掺铒光纤放大器和掺铒光纤宽带光源研制单位对掺铒光纤的需要。
Erbium-doped fiber is mainly used to make EDFA and EDFS. In the production process, there are liquid phase doping, gas doping and chelate doping. In view of the existing domestic equipment Conditions and techniques, in recent years in the development of erbium-doped fiber process, the use of the traditional liquid phase doping process, but its bold to improve and optimize the erbium-doped fiber manufacturing process has made significant progress, the optical fiber Compared with the same kind of foreign fiber, the difference is greatly reduced. The main parameters have reached or approached the same level of erbium-doped fiber in foreign countries, the background loss is 3.74dB / km, the numerical aperture is 0.236, the absorption at 980nm is 6.05 dB / m, to a certain extent, already able to meet the domestic erbium-doped fiber amplifier and erbium-doped fiber broadband light source development unit of the need for erbium-doped fiber.