1 4 ( 4 ) 1. - 3 5 2. - 6 9 3. - 10 18 4. Agilent 83480A 86100A - 19 28
1 ( ) 0 1 ( ) 1 = 0 1 (db) = 10 log 10 0 1 % = 100 0 11000 W0 50 W 20 13dB 5% (BER) ( ) BER 2BER 8.2dB13dBBER 1dB 0dBm 13dB 1dBm 8.2dB BER 5dB8.2dB BER 1.5dB
3 BER Power Penalty (db) 2 1 0 0 5 8.2 10 13 15 20 Extinction Ratio (db) (BER) 1 0 2 1200 1100 1000 900 800 700 600 500 400 300 200 100 0 P mod A 1000 µw P AVG 100 µw P mod B 1200 µw P AVG 300 µw
3 2 ( ) 900 W AB BER A 550 WB 750 WB A 200 W 0( 0) ()( ) BER 3 A B A 0 100 W B 300 W 0 300 W 1 0 1 0 A 1000/100 10 B 1200/300 4 ( 0 BER) 8 20 (9 13dB) 3A 10 10dB 10% B 4 6dB 25%
SDH(Synchronous Digital Hierarchy) 8.2dB 10dB SONET(Synchronous Optical Network) SDH 8.2dB 10dB Ethernet TIA/EIA-526-4A9dB Fibre Channel TIA/EIA OFSTP-4A9dB OFSTP-4A 4 4 / SONET/SDH 5
5 0 3 5 (db) 10 15 20 25 0 0.5 0.75 1.0 1.5 2.0 (f/ ) ( ) 6 ( ) SDH SONET
OFSTP-4A 1 0 2
1 0 7 20% 20 10 2
/ 0 8 1 1mW0 50 W20 13dB 5%/ 500V/W 10mV 1000 µw 510 mv O/E 50 µw 35 mv 1 500mV510mV 025mV35mV 14.6 11.6dB 6.9% = ((20-14.6)/20)*100 = 27%
0 ( 1 500mV) 510/10 51(17dB 2%) 1 Agilent 83480A Agilent 86100A Agilent 83480A Agilent 86100A Agilent 83480A Agilent 86100A (O/E ) TIA/EIA OFSTP-4A( ) 5
5 0 (dbe) 5 10 15 20 0 8 5 10 9 1 10 9 1.5 10 9 2 10 9 2.5 10 9 3 10 9 3.5 10 9 4 10 (Hz) 9 SDH/SONET 1dB O/E GaAs 9 10 10dB 5.48dB DC AC
( 8 ) * Agilent 83481A 83482A 83485A 83485B 83486A 83487A 86101A 86103A 86105A 86106A 86109A Agilent 83485A11 * 1
(dbe) 1 0 1 2 3 4 5 6 7 CCITT 8 9 10 11 12 13 14 15 10.0 347.3 684.5 1021.8 1359.1 1696.4 2033.6 2370.9 2708.2 3045.5 3382.7 3720.0 (MHz) Agilent 83480A 1. 2. ( 3 ) 3. 10 4. Agilent 83480 1994 20% 1 0 0 1
11 10 1 1 2 1 1 2 ( ) 1 2 1 ( ) 1994 ( 20%) 2 1 2 2 Agilent 83480A 7.0 Agilent 86100 Agilent 83480A Agilent 83485A Agilent 86100A Agilent 86105A RMS 8 W (-21dBm) 1 0 RMS16 W
40 W (-14dBm) 10 10 12( 10) RMS10 RMS16 W (8 W 2 )100 W (10 2 )5 Agilent 83480A 86100A Agilent 83481A 83486A 83487A 86101A 86103ARMS 1.5 W10 W (-20dBm) Agilent 83485B 86106A RMS 15 W100 W (-10dBm) S/N 12 S/N Agilent 83480A Agilent 83485A ( 1 0RMS 8 W) 200 W (100 W -10dBm)
OFSTP-4 1 1 1 1 Agilent 83480A 86100A Agilent 83480A 86100A 20% 20%2 1 OFSTP-4A 2 1 0 20% Agilent 83480A DEFINE MEAS Color Grade Eye window Agilent 86100A Measure Config Measure Eye Boundary Agilent 83480A 7.0 () 131 50 1 50 Agilent 83480A ( 7.0) 86100 1 15 20Agilent 83480A DEFINE MEAS Color Grade # Hits Agilent 86100 # Hits 10
Agilent 83480A 86100A SETUP (83480) Default Setup Agilent 83480A 86100A 2.5Gb/s 2.5GHz 1 (41 10 1 2488.32Mb/s 622.08 248.832MHz) ( )
1 Channel SETUP(Agilent 8348X ) Agilent 86100A "EYE/MASK" Eye/Mask 1 (OFSTP- 4A) Agilent 83480A Channel SETUP Bandwidth/Wavelength Filter (On Off)Agilent 86100A Setup 2 2 Agilent 86100A Agilent 83480A CHANNEL SETUP Channel Autoscale Timebase Time/Bit period Bit period ( ) Bit Rate (2488Mb/s STM- 16/OC-48) Bit Period 12 Position 86100A Eye/mask 83480A DISPLAYColor Grade Color Grade 83480A 86100A (/)
Agilent 83480A Meas Eye(Acquisition ) Agilent 86100A Eye/Mask ( ) extinction ratio( ) 86100A Measurement Results() "Setup and Info" "Extinction Ratio" "Configuration"
(O/E ) ( ) Agilent 83480A 86100A ( ) ( ) 21 50/100/200... 80 W/div 15
( ) 3 Agilent 86100A Agilent 86100A 110 1 (200 W/div 100 W/div500 W/div) 16a
Ch X Extinction Ratio Calibration ch 1 2 2 (1 2 1 2 ) Agilent 83480A 5
MEAS EYE/Extinction Ratio/Dark Cal Dark Cal Agilent 83480A Agilent 83486A/7A 1 UTILITY/Calibrate/Calibrate Plug-in ( 5 SETUP CHANNEL Calibrate/Cal Status Cal Status ON 16b ()0 )
2 O/E 35 2 O/E 2 ( ) CLEAR DISPLAYExtinction Ratio DONE (17 ) Agilent 83480A 15 1 15 DEFINE MEAS/Color grade/ #Hits 1( )#Hit
Agilent 86100A #hits GPIB 15 #hits 15 CLEAR DISPLAY Agilent 83480A Agilent 83480A DC Agilent 83485A DC25 W 2% 10dB(10:1) 11000 W 0100 W ( ) (1000*1.02 + 25)/(100*0.98-25) = 14.32 (11.6dB) (1000*0.98-25)/(100*1.02 + 25) = 7.52 (8.8dB) 16dB (40:1)1000 W 1 25 W0 (1000*1.02 + 25)/(25*0.98-25) = ( ) (1000*0.98-25)/(25*1.02 + 25) = 18.9(12.8dB) 10 0( ) 0 1 ( ) 0
Agilent 83480A 86100A 50 2^7-1PRBS 20%6 1.3 ( SDH/SONET Ethernet ) Agilent 83485A -4dBm -14dBm Agilent 83481A 83486A 83487A -10dBm -18dBm 1 Agilent 83480A 1 Agilent 86100A
Agilent 83480A Agilent 83480A 1. db % 2.10%% ( % ) CLEAR DISPLAY 3. (Shift/More Meas()/Avg Power) 4. 1 4% 5. (MEAS EYE/Extinction ratio) Ch x freq corr 4 1.5%1.5 Enter
db PRBS : Accurate Optical Extinction Ratio Measurements,IEEE Photonics Technology Letter,Vol.6,No.11,November 1994,P.O.Andersson and K.Akermark
Agilent Technologies Value 5 Agilent Agilent www.agilent.com/comms/lightwave 5966-4316J 010103301-NMC