Phosphate glass is an ideal material for high erbium - doped . erbium ion has large emission section in phosphate glass , however , it has small absorb section for 980nm pump light , which can be settled via doped yb3 + 虽然铒离子在磷酸盐玻璃中具有较大的发射截面,但对波长为980nm泵浦光来说,其吸收截面较小,可用镱离子与之掺杂来补充这一不足。
Then each characteristics of phosphate glass are presented . the best gain material is also obtained by melting chemic materials in special proportion . and the refractive index is 1 . 547513 , converted temperature is 426 c and erbium ion concentration is 2 . 9 g / cm3 through measurement 测得磷酸盐增益玻璃材料的折射率为1 . 547513 、转变温度为426 c ,玻璃密度为2 . 9g / cm3 ,而且还对玻璃的化学稳定性也进行了测试。