1550 nm OPTICAL FIBER COMM.
EA MODULATOR INTEGRATED MQW-DFB
LASER DIODE MODULE FOR 2.5 Gb/s D-WDM NDL7911P
ULTRALONG-REACH APPLICATIONS (360 km) SERIES
FEATURES
•
INTEGRATED ELECTROABSORPTION MODULATOR
•
VERY LOW DISPERSION PENALTY OVER 360 km
•
LOW MODULATION VOLTAGE
•
WAVELENGTH SELECTABLE FOR ITU-T STANDARDS
•
14-PIN BUTTERFLY PACKAGE
DESCRIPTION
The NDL7911P Series is an EA modulator integrated 1550 nm
DFB-LD 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
ultralong-reach applications.
ELECTRO-OPTICAL CHARACTERISTICS
(T
LD
= 25°C, T
C
= -20 to +70°C, unless otherwise specified)
PART NUMBER
PACKAGE OUTLINE
SYMBOLS
T
SET
I
OP
V
Rmc
V
Rmpp
V
FLD
I
TH
P
f
λ
P
∆υ
SMSR
ER
f
C
t
f
t
r
P
e
ISOL
PARAMETERS AND CONDITIONS
Laser Set Temperature
Operating Current
Modulation Center Voltage
Modulation Voltage
Forward Voltage of LD, I
FLD
= I
OP
Threshold Current
Optical Output Power from Fiber,
V
Rm
= 0 V, I
FLD
= I
OP
Peak Emission Wavelength, I
FLD
= I
OP
, V
Rm
= 0 V,
T
LD
= T
SET
Spectral Line Width, I
FLD
= I
OP
, -20 dB,
Under modulation
2
Side Mode Suppression Ratio, I
FLD
= I
OP
, V
Rm
= 0 V
Extinction Ratio, I
FLD
= I
OP
, Under modulation
1
Cut-off Frequency, I
FLD
= I
OP
, V
Rm
= 1/2 V
Rmpp,
-3 dB, 50
Ω
Rise Time, I
FLD
= I
OP
, 20-80%, Under modulation
2
Rise Time, I
FLD
= I
OP
, 80-20%, Under modulation
2
Transmission Penalty Due to Dispersion, I
FLD
= I
OP
,
Under modulation
2
, 360 km standard fiber
3
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-T
1
4
7
MIN
20
50
0.5
2
NDL7911P
TYP
MAX
35
100
1.5
3
1.8
20
Notes:
1. Please refer to Ordering Information.
2. 2.48832 Gb/s, PRBS 2
23-1
, V
RM
= V
RMC
±
1/2V
RMPP
, NEC Test System.
3. 360 km stqandard fiber NEC Test System, Transmission penalty at B
ER
= 10
-9
California Eastern Laboratories
NDL7911P
ELECTRO-OPTICAL CHARACTERISTICS
(T
LD
= 25°C, T
C
= -20 to +70°C)
PART NUMBER
PACKAGE OUTLINE
SYMBOLS
I
m
I
D
γ
1
C
t
R
B
I
C
V
C
Note:
1.
γ
= 10 log
PARAMETERS AND CONDITIONS
Monitor Current, I
FLD
= I
OP
, V
Rm
= 0 V
Dark Current, V
RPD
= 5 V
Tracking Error, I
m
= const.
Monitor Capacitance, V
RPD
= 5 V, f = 1 MHz
Thermistor Resistance
B Constant
Cooler Current,
∆T
= 70 — T
set
Cooler Voltage,
∆T
= 70 — T
set
P
f
P
OP
UNITS
µA
nA
dB
pF
kΩ
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
NDL7911P
TYP
MAX
Applicable to Thermistor and TEC
P
f
(mW)
T
LD
= T
C
= 25°C
P
op
P
f
T
LD
= 25°C, T
C
= -20 to +70°C
0
I
m
(at P
f
(25°C) = P
op
)
I
m
ABSOLUTE MAXIMUM RATINGS
1
(T
C
= 25°C, unless otherwise specified)
SYMBOLS
P
f
I
FLD
V
RLD
V
Fm
V
Rm
I
FPD
V
RPD
I
C
V
C
T
C
T
STG
T
SLD
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.
NDL7911P
ORDERING INFORMATION
PART NUMBER
With SC-PC Connector
NDL7911PD477
NDL7911PD485
NDL7911PD493
NDL7911PD501
NDL7911PD509
NDL7911PD517
NDL7911PD525
NDL7911PD533
NDL7911PD541
NDL7911PD549
NDL7911PD557
NDL7911PD565
NDL7911PD573
NDL7911PD581
NDL7911PD589
NDL7911PD597
NDL7911PD606
PART NUMBER
With FC-PC Connector
NDL7911PC477
NDL7911PC485
NDL7911PC493
NDL7911PC501
NDL7911PC509
NDL7911PC517
NDL7911PC525
NDL7911PC533
NDL7911PC541
NDL7911PC549
NDL7911PC557
NDL7911PC565
NDL7911PC573
NDL7911PC581
NDL7911PC589
NDL7911PC597
NDL7911PC606
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
(T
LD
= +25°C)
OPTICAL OUTPUT POWER FROM FIBER vs.
FORWARD CURRENT OF LD (CW)
EXTINCTION RATIO vs.
MODULATION VOLTAGE (CW)
0
V
Rm
= 0 V
OPtical Output Power from Fiber, P
f
(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, I
FLD
(mA)
Modulation Voltage, V
Rmpp
(V)
NDL7911P
600 km STANDARD FIBER TRANSMISSION EXAMPLE
P
IN
(EDFA) : -20 to -21 dBm
P
OUT
(EDFA) : +8 dBm
120 km
10
-3
V
RMPP
= 2.2 V,
V
RMC
= 0.8 V
10
-4
ERROR RATE CHARACTERISTICS
Bit Error Rate
TX
EDFA
EDFA
120 km
10
-5
10
-6
10
-7
10
-8
∆λ
= 0.6 nm
RX
120 km
EDFA
10
-9
10
-10
10
-11
10
-12
-42
back to back
after 360 km
-40
-38
-36
-34
-32
Average Received Power, P (dBm)
OUTLINE DIMENSIONS
(Units in mm)
NDL7911P
15.24
2.54
10 MIN.
Top View
4 -
φ2.67
7
0.9
1.25
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
Ω
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
11/14/2000
DATA SUBJECT TO CHANGE WITHOUT NOTICE
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