1、 60793-1-45 2013 1-45 . IEC 60793-1-45:2001 Optical fibres Part 1-45: Measurement methods and test procedures Mode field diameter (IDT) 2014 60793-1-452013 1 -, - ( ) , 4 2 46 3 06 2013 . 912- 4 60793-1-45:2001 . 1-45. . (IEC 60973-1-45:2001 Optical fibres Part 1-45: Measurement methods and test pro
2、cedures Mode field diameter), Cor 1:2002. , , , , . , A 5 1.0null2012 ( 8). ( 1 ) , null . () . , null (gost.ru) , 2014 , II 60793-1-452013 1-45 . Optical fibres. Part 1-45. Measurement methods and test procedures - Mode field diameter 20150101 1 ( ) ( ), . . , II . (1). . , , 1: 1 : - : ; - : ; - :
3、 ; - D: (). 1 60793-1-452013 2 : 60793-1-401 . 1-40. . (IEC 60793-1-40 Optical fibres Part 1-40: Measurement methods and test procedures Attenuation) 60793-2:19982 . 2. (IEC 60793-2:1998 Optical fibres Part 2: Product specifications) 3 () . 4 , , . , , D . 4.1 , C , . ( ) . , (). /. 10 , . D D. 4.2
4、, . , , , , . . . 1 , . 2 60793-2:2011, 60793-2-10:2011, 60793-2-20:2007, 60793-2-30:2012, 60793-2-40:2009, 60793-2-50:2012. , , . 2 60793-1-45-2013 D D. 4.3 . x, y, z , , , , . . . 4.4 , . . 4.5 , , . , 30 . 4.6 , . . . , , . ( , , .) 4.7 , , D. 4.8 , , D. 4.9 , , , . , , D . 5 5.1 , , , (2 0,2) .
5、D, , , , , 3 60793-1-452013 , 60793-1-40. 5.2 , . 6 , , D. 7 , . : , , D. , . 7.1 . , . II, : ( ) ( ) ( ) ( )( ) ( ) ( ) ( )=202200cossincossin22dPdPWFF, (1) 2W0 , ; PF() ; , , ; , . 1 0 /2, , , . 2 PF() F2() (ITU-T). . . , II ; , (1). 2W0, II. , PF(), . 7.2 . , . , 2W0, : ( )( )21022202+=dxDxxxDW ,
6、 (2) 2W0 , ; , , ; D , ; 4 60793-1-45-2013 (x) , = ( )( )( )max1PPxx= , (3) P(x) , x ; P(max) , ; x , ( )tg= Dx , (4) D , . (1) (2) . (2) (1) . (2) ( )21002sin22=dW , (5) 2W0 , ; () , ( )( )( )max1PP = , (6) P() , ; P(max) , . . , . . II (1). (1) (3) . (5) (1) . 7.3 . C , . , : ( )( )=02020222drdrrdfdrrfrW , (7) 2W0 , ; r , ; f 2(r) . , , , . . . . . II (1). (1) (5)
