1、 60793-1-49 2014 1-49 . IEC 60793-1-49:2006 Optical fibres Part 1-49: Measurement methods and test procedures Differential mode delay (IDT) 2015 60793-1-492014 II 1 - -, - - ( ) - , 4 2 46 3 - 18 2014 . 1116- 4 60793-1-49 (2006) . 1-49. . (IEC 60793-1-49:2006 Optical fibres Part 1-49: Measurement me
2、thods and test procedures Differential mode delay). - - , - - A 5 6 , 4, - . () - 1.02012 ( 8). ( 1 ) , -. () - . , (gost.ru) , 2015 -, - 60793-1-492014 III 1 . 1 2 . 2 3 . 2 4 2 4.1 2 4.2 3 4.3 3 4.4 . 3 4.5 4 5 . 4 5.1 . 4 5.2 4 5.3 4 5.4 4 5.5 . 4 6 . 5 6.1 5 6.2 . 5 6.3 . 5 7 . 6 7.1 (DMD) . 6 7
3、2 . 6 7.3 . 8 8 . 8 9 8 () . 9 () 12 () DMD EMBc .15 D () EMBc .17 () 20 () 21 .22 60793-1-492014 1 1-49 . Optical fibres. Part 1-49. Measurement methods and test procedures. Differential mode delay 20160101 1 ( ) ( 1). , -. - . - , , , . , , , , . . . -, - . , , - , - . - (DMD) DMD, , - - (EMB) -.
4、 -, - - (EMBc), , EMB - , EMB. , - . - , . , DMD EMBc. 60793-1-492014 2 2 ( -, ): 60793-1-1 . 1-1. . (IEC 60793-1-1, Optical fibres Part 1-1: Measurement methods and test procedures General and guidance) 60793-1-22 . 1-22. . (IEC 60793-1-22, Optical fibres Part 1-22: Measurement methods and test pro
5、cedures Length measurement) 60793-1-41 . 1-41. . (IEC 60793-1-41, Optical fibres Part 1-41: Measurement methods and test procedures Bandwidth) 60793-1-42 . 1-42. . (IEC 60793-1-42, Optical fibres Part 1-42: Measurement methods and test procedures Chromatic dispersion) 60793-1-45 . 1-45. . (IEC 60793
6、1-45, Optical fibres Part 1-45: Measurement methods and test procedures Mode fild diameter) 60793-2-10 . 2-10. . 1 (IEC 60793-2-10, Optical fibres Part 2-10: Measurement methods and test procedures Sectional specification for category A1 multimode fibres) 61280-1-4 - . 1-4. . (IEC 61280-1-4, Fibre
7、optic communication subsys-tem test procedures Part 1-4: General communication subsystems Collection and reduction of two-dimensional nearfield data for multimode fibre laser transmitters) 3 : 3.1 ; DMD (differential mode delay; DMD): , RINNER ROUTER. 3.2 ; EMB (effective modal bandwith; EMB): , H(f
8、) /. 3.3 RINNER , ROUTER (inner limit RINNER, outer limit ROUTER): , - . 4 4.1 , - . . - , 25 % , DMD, . , - DMD, , 0,20 / - 500 , DMD 100 - 110 . 10000 DMD DMD - 60793-1-492014 3 2000 2200 . - 6.1 . , , , . - . 10 - . , , - . 4.2 4.3 4.4 . 4.3 , , , . (8,7 2,39) 0,5 , , , , - 60793-1-45. , 5 850 9 1310 , -. , . - 25 . , , - 0,5 . , , 1,0. - , , 1,0 . , - 10 . , , , , , . , , - . , -, , . . - . , - . - , . 4.4 -, .
