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1550 nm OPTICAL FIBER COMM. EA MODULATOR INTEGRATED MQW-DFB LASER DIODE MODULE FOR 2.5 Gb/s D-WDM NDL7912P ULTRALONG-REACH APPLICATIONS (600 km) SERIES
FEATURES
* INTEGRATED ELECTROABSORPTION MODULATOR * VERY LOW DISPERSION PENALTY OVER 600 km * LOW MODULATION VOLTAGE * WAVELENGTH SELECTABLE FOR ITU-T STANDARDS * 14-PIN BUTTERFLY PACKAGE
DESCRIPTION
The NDL7912P is an EA modulator integrated 1550 nm DFBLD module for 2.5 Gb/s. The newly developed bandgap energy controlled selective MOVPE technology is utilized as the fabrication method. It is designed for 2.5 Gb/s D-WDM ultralongreach applications.
ELECTRO-OPTICAL CHARACTERISTICS (TLD = 25C, TC = -20 to +70C, unless otherwise specified)
PART NUMBER PACKAGE OUTLINE SYMBOLS TSET IOP VRmc VRmpp VFLD ITH Pf P SMSR ER fC tf tr Pe ISOL PARAMETERS AND CONDITIONS Laser Set Temperature Operating Current Modulation Center Voltage Modulation Voltage Forward Voltage of LD, IFLD = IOP Threshold Current Optical Output Power from Fiber, VRm = 0 V, IFLD = IOP Peak Emission Wavelength, IFLD = IOP, VRm = 0 V, TLD = TSET Spectral Line Width, IFLD = IOP, -20 dB, Under modulation2 Side Mode Suppression Ratio, IFLD = IOP, VRm = 0 V Extinction Ratio, IFLD = IOP, Under modulation2 Cut-off Frequency, IFLD = IOP, VRm = 1/2 VRmpp, -3 dB, 50 Rise Time, IFLD = IOP, 20-80%, Under modulation2 Rise Time, IFLD = IOP, 20-80%, Under modulation2 Transmission Penalty Due to Dispersion, IFLD = IOP, Under modulation2, 600 km standard fiber3 Isolation UNITS C mA V V V mA mW nm GHz dB dB GHz ps ps dB dB 30 30 10 3.2 125 125 2 0.5 Specified to ITU-T1 4 7 MIN 20 50 0.5 2 NDL7912P TYP MAX 35 100 1.5 3 1.8 20
Notes: 1. Please refer to Ordering Information. 2. 2.48832 Gb/s, PRBS 223-1, VRm = VRmc 1/2VRmpp, NEC Test System. 3. 600 km standard fiber NEC Test System, Transmission penalty at BER = 10-9
California Eastern Laboratories
NDL7912P ELECTRO-OPTICAL CHARACTERISTICS (TLD = 25C, TC = -20 to +70C, unless otherwise specified)
PART NUMBER PACKAGE OUTLINE SYMBOLS Im ID 1 Ct R B IC VC Note: 1. = 10 log PARAMETERS AND CONDITIONS Monitor Current, IFLD = IOP, VRm = 0 V Dark Current, VRPD = 5 V Tracking Error, Im = const. Monitor Capacitance, VRPD = 5 V, f = 1 MHz Thermistor Resistance B Constant Cooler Current, T = 70 -- Tset Cooler Voltage, T = 70 -- Tset Pf POP UNITS A nA dB pF k K A V 9.5 3300 10.0 3400 MIN 20 Applicable to Monitor PD 1000 10 0.5 15 10.5 3500 1.5 2.5 NDL7912P TYP MAX
Applicable to Thermistor and TEC
Pf (mW)
TLD = TC = 25C
Pop Pf
TLD = 25C, TC = -20 to +70C
0
Im (at Pf (25C) = Pop)
Im
ABSOLUTE MAXIMUM RATINGS1
(TC = 25C, unless otherwise specified) SYMBOLS Pf IFLD VRLD VFm VRm IFPD VRPD IC VC TC TSTG TSLD PARAMETERS Optical Output Power from Fiber Forward Current of LD Reverse Voltage of LD Forward Voltage of Modulator Reverse Voltage of Modulator Forward Current of PD Reverse Voltage of PD Cooler Current Cooler Voltage Operating Case Temperature Storage Temperature Lead Soldering Temp. (10 s) UNITS mW mA V V V mA V A V C C C RATINGS 10 150 2.0 1 5 1 10 1.5 2.5 -20 to +70 -40 to +85 260
Note: 1. Operation in excess of any one of these parameters may result in permanent damage.
NDL7912P ORDERING INFORMATION
PART NUMBER With SC-PC Connector NDL7912PD477 NDL7912PD485 NDL7912PD493 NDL7912PD501 NDL7912PD509 NDL7912PD517 NDL7912PD525 NDL7912PD533 NDL7912PD541 NDL7912PD549 NDL7912PD557 NDL7912PD565 NDL7912PD573 NDL7912PD581 NDL7912PD589 NDL7912PD597 NDL7912PD606 PART NUMBER With FC-PC Connector NDL7912PC477 NDL7912PC485 NDL7912PC493 NDL7912PC501 NDL7912PC509 NDL7912PC517 NDL7912PC525 NDL7912PC533 NDL7912PC541 NDL7912PC549 NDL7912PC557 NDL7912PC565 NDL7912PC573 NDL7912PC581 NDL7912PC589 NDL7912PC597 NDL7912PC606 ITU-T Wavelength (nm) 1547.72 1548.51 1549.32 1550.12 1550.92 1551.72 1552.52 1553.33 1554.13 1554.94 1555.75 1556.55 1557.36 1558.17 1558.98 1559.79 1560.61 Frequency (THz) 193.7 193.6 193.5 193.4 193.3 193.2 193.1 193.0 192.9 192.8 192.7 192.6 192.5 192.4 192.3 192.2 192.1
TYPICAL PERFORMANCE CURVES (TLD = +25C, unless otherwise specified)
OPTICAL OUTPUT POWER FROM FIBER vs. FORWARD CURRENT OF LD (CW) EXTINCTION RATIO vs. MODULATION VOLTAGE (CW)
0
VRm = 0 V
OPtical Output Power from Fiber, Pf (mW)
2.0
1.5 0.5 V 1.0
Extinction Ratio, ER (dB)
5
10
15
0.5
1V 2V 3V
20
0 0 50 100 150 200
25 0 1 2 3
Forward Current of LD, IFLD (mA)
Modulation Voltage, VRmpp (V)
NDL7912P TYPICAL PERFORMANCE CURVES (TLD = +25C)
EXTINCTION RATIO vs. MODULATION VOLTAGE (CW)
FREQUENCY RESPONSE (S21)
0
Return Loss, RL (10dB/div.)
0.05 2.55 5.05
Response (3 dB/div.)
0
0.05
2.55
5.05
Frequency, f (GHz)
Frequency, f (GHz)
SPECTRAL LINE WIDTH
2.5 Gb/s PRBS 223-1
Relative Intensity (5 dB/div.)
Wavelength (1 GHz/div.)
ERROR RATE CHARACTERISTICS
ERROR RATE CHARACTERISTICS
10-3 VRmpp = 2.2 V, VRmc = 0.8 V
Extinction Ratio, ER (dB)
10-4
10-5 10-6 10-7 10-8 10-9 10-10 10-11 10-12 -42 back to back after 360 km after 600 km -40 -38 -36 -34 -32
Average Received Power, P (dBm)
NDL7912P
600 km STANDARD FIBER TRANSMISSION EXAMPLE
120 km PIN (EDFA) : -20 to -21 dBm POUT (EDFA) : +8 dBm 120 km
2.5 Gb/s
TX
EDFA
EDFA
EDFA 120 km
= 0.6 nm RX 120 km EDFA 120 km EDFA
OUTLINE DIMENSIONS (Units in mm)
NDL7912P
15.24 2.54
10 MIN.
4 - 2.67
1.25
Top View
7
0.9
22.3
12.7 0.15
1
8.89 0.13
7
1
8
14
6.0
+ Cooler
PD
Thermistor
LD
MOD
0.5 20.83 0.13 26.04 0.13
8
14
8.2 0.2
0.75
Optical Fiber (SMF) Length : 1 m
5.15
29.97 0.25
Pin No. 1. 2. 3. 4. 5. 6. 7.
PIN CONNECTIONS Function Pin No. Function Thermistor 8. GND Thermistor 9. GND LD DC Bias 10. NC PD Anode 11. GND PD Cathode 12. Signal Input (MOD) Cooler Anode 50 RF Input Cooler Cathode 13. GND 14. GND
5.6
EXCLUSIVE NORTH AMERICAN AGENT FOR
1.0
RF, MICROWAVE & OPTOELECTRONIC SEMICONDUCTORS
CALIFORNIA EASTERN LABORATORIES * Headquarters * 4590 Patrick Henry Drive * Santa Clara, CA 95054-1817 * (408) 988-3500 * Telex 34-6393 * FAX (408) 988-0279 24-Hour Fax-On-Demand: 800-390-3232 (U.S. and Canada only) * Internet: http://WWW.CEL.COM DATA SUBJECT TO CHANGE WITHOUT NOTICE 11/14/2000

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