1310 nm OPTICAL FIBER
COMMUNICATIONS InGaAsP
STRAINED MQW-DFB LASER DIODE
COAXIAL MODULE FOR 2.5 Gb/s
FEATURES
•
PEAK EMISSION WAVELENGTH:
λ
P
= 1310 nm
•
HIGH SPEED RESPONSE:
t
r
= 40 ps
t
f
= 100 ps
•
INTERNAL OPTICAL ISOLATOR
•
InGaAs MONITOR PIN-PD
•
WIDE OPERATING TEMPERATURE RANGE:
T
C
= 0 to +70°C
•
λ/4
- PHASE-SHIFTED DFB
NDL7620P
SERIES
DESCRIPTION
The NDL7620P Series is a 1310 nm
λ/4-phase-shifted
DFB
(Distributed Feed-Back) laser diode coaxial module with inter-
nal optical isolator. Newly developed strained Multiple
Quantum Well (st-MQW) structure is adopted to achieve
stable dynamic single longitudinal mode operation over a wide
temperature range of 0 to +70°C. It is designed for STM-16
applications.
ELECTRO-OPTICAL CHARACTERISTICS
(T
C
= 0 to +70
°C,
unless otherwise specified)
PART NUMBER
PACKAGE OUTLINE
SYMBOLS
V
F
P
f
I
TH
η
d
∆η
d
PARAMETERS AND CONDITIONS
Forward Voltage, P
f
= 2 mW, T
C
= 25°C
Optical Output Power from Fiber, I
F
= I
TH
+ 40 mA
Threshold Current
Differential Efficiency from Fiber, P
f
= 2 mW
Temperature Dependence of Differential Efficiency
η
d
(T
C
= 70° C)
from Fiber,
∆η
d
= 10 log
η
d
(T
C
= 25° C)
Peak Emission Wavelength, P
f
= 1 mW, I
b
= I
TH
,
2.5 G/s-NRZ, PN 1/2
Side Mode Suppression Ratio, P
f
= 1 mW, I
b
= I
TH
,
2.5 G/s-NRZ, PN 1/2
Rise Time, 10-90%, I
b
= 0.9 x I
th
Fall Time, 90-10%, I
b
= 0.9 X I
th
Monitor Current, V
R
= 5 V, P
f
= 2 mW
Monitor Dark Current, V
R
= 5 V, T
C
= 25°C
Monitor PD Terminal Capacitance, V
R
= 5 V
Tracking Error, I
m
= const.
UNITS
V
mW
mA
W/A
dB
0.05
-3.5
-2.5
MIN
0.9
2.0
45
NDL7620P Series
TYP
MAX
1.4
λ
p
SMSR
t
r
t
f
I
m
I
D
C
t
γ
1
Note:
nm
dB
ps
ps
µA
nA
pF
dB
1290
30
40
100
50
1310
40
125
200
1330
2000
0.5
1.0
5.0
1.5
1.0
P
f
(mW)
T
C
= 25°C
P
f
1.
γ
= 10 log
2mW
2
P
f
T
C
= 0 to +70°C
0
I
m
(at P
f
(25°C) = 2 mW)
I
m
California Eastern Laboratories
NDL7620P SERIES
ABSOLUTE MAXIMUM RATINGS
1
(T
C
= 0 to +70
°C,
unless otherwise specified)
SYMBOLS
I
F
P
f
V
R
I
F
V
R
T
C
T
STG
T
SLD
PARAMETERS
Forward Current of LD
Optical Output Power from Fiber
Reverse Voltage of LD
Forward Current of PD
Reverse Voltage of PD
Operating Case Temperature
Storage Temperature
Lead Soldering
Temperature (10 s)
UNITS
mA
mW
V
mA
V
°C
°C
°C
RATINGS
150
5.0
2.0
10
20
0 to +70
-40 to +85
260
Note:
1. Operation in excess of any one of these parameters may result
in permanent damage.
TYPICAL PERFORMANCE CURVES
(T
C
= 25
°C,
unless otherwise specified)
OPTICAL OUTPUT POWER
FROM FIBER
vs. FORWARD CURRENT
10
THRESHOLD CURRENT AND
OPERATION CURRENT
vs. CASE TEMPERATURE
100
P
f
= 2 mW
Output Power from Fiber, P
f
(mW)
8
T
C
= 0
°C
6
25
°C
Threshold Current, I
TH
(mA)
Operation Current, I
OP
(mA)
50
I
OP
30
20
I
th
4
70
°C
2
10
0
20
40
60
80
100
5
-20
0
20
40
60
80
Forward Current, I
F
(mA)
Case Temperature, T
C
(°C)
FREQUENCY RESPONSE (S
21
)
P
f
= 2 mW
RETURN LOSS CHARACTERISTICS (S
11
)
P
f
= 2 mW
Return Loss (10 dB/div.)
0.05
Response (3 dB/div.)
0.05
2.25
5.05
2.55
5.05
Frequency, f (GHz)
Frequency, f (GHz)
NDL7620P SERIES
TYPICAL PERFORMANCE CURVES
(T
C
= -40 to +85°C)
LONGITUDINAL MODE
10
T
C
= 0
°C
2.488 Gb/s,
NRZ,
I
b
= I
TH
10
LONGITUDINAL MODE
T
C
= 0
°C
2.488 Gb/s,
NRZ,
I
b
= I
TH
Relative Intensity
-30
-70
1.3054
Relative Intensity
-30
-70
1.3154
1.3254
1.3114
1.3214
1.3314
Wavelength,
λ
(nm)
Wavelength,
λ
(nm)
EYE DIAGRAM
T
C
= 25
°C
EYE DIAGRAM
T
C
= 70
°C
Relative Intensity
Relative Intensity
Time Base (100 ps/div.)
Time Base (100 ps/div.)
ERROR RATE CHARACTERISTICS
10
-5
2.5Gb/s, NRZ,
Ref. = -14 dB
10
-6
Bit Error Rate
10
-7
back to back
- - - - after 50 km
T
C
= 0
°C
10
-8
10
-9
10
-10
10
-11
-36
-35
-34
-33
-32
70
°C
-31
-30
Average Recieved Power, P (dBm)
NDL7620P SERIES
OUTLINE DIMENSIONS
(Units in mm)
NDL7620P
Optical Fiber
SM-9/125
Length: 1 m
Optical Fiber
SM-9/125
Length: 1 m
NDL7620P1
φ3.2±0.25
φ0.9
φ3.2±0.25
φ0.9
φ7±0.2
15
15
φ7±0.2
29.0±1.0
2±φ2.2
29.0±1.0
8
4.1±0.8
8
5.3±0.8
φ0.45±0.05
2.0±0.2
4.0±0.2
20±1.0
φ0.45±0.05
20±1.0
φ6±0.1
φ6±0.1
12.7±0.2
17.0±0.2
PD
PD
3
2
LD
CASE
P.C.D. =
φ2
43
12
P.C.D. =
φ2
43
12
4
φ7±0.2
1
4
7.2±0.3
3.7±0.3
1
LD
CASE
3
2
1.0±0.1
NDL7620P2
Optical Fiber
SM-9/125
Length: 1 m
φ3.2±0.25
φ0.9
ORDERING INFORMATION
15
φ7±0.2
8
29.3±1.0
PART NUMBER
NDL7620P
NDL7620PC
NDL7620PD
NDL7620P1
NDL7620P1C
AVAILABLE CONNECTOR
Without Connector
With FC-PC Connector
With SC-PC Connector
Without Connector
With FC-PC Connector
With SC-PC Connector
Without Connector
With FC-PC Connector
With SC-PC Connector
DESCRIPTION
No Flange
0.5±0.2
0.3
2.5±1.0
19.5±1.0
0.3
4-φ0.45±0.05
NDL7620P1D
NDL7620P2
NDL7620P2C
NDL7620P2D
Flat
Mount
Flange
Vertical
Flange
φ16
2
3
1
4
P.C.D. =
φ2
2-φ2.5
7±0.2
2
PD
1
3
4
LD
CASE
12±0.15
16.0
EXCLUSIVE NORTH AMERICAN AGENT FOR
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
02/01/2000
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