1500 nm OPTICAL FIBER
COMMUNICATIONS InGaAsP
MQW-DFB LASER DIODE COAXIAL MODULE
FEATURES
•
PEAK EMISSION WAVELENGTH:
λ
P
= 1550 nm
•
OPTICAL OUTPUT POWER:
P
f
= 2.0 mW
•
INTERNAL OPTICAL ISOLATOR
•
InGaAs MONITOR PIN-PD
•
WIDE OPERATING TEMPERATURE RANGE:
T
C
= -40 to +85°C
•
λ/4
- PHASE-SHIFTED DFB
NDL7705P
SERIES
DESCRIPTION
The NDL7705P Series is a 1550 nm phase-shifted DFB
(Distributed Feed-Back) laser diode module with optical
isolator. Newly developed strained Multiple Quantum Well
(MQW) structure is adopted to achieve stable dynamic single
longitudinal mode operation over a wide temperature range of
-40 to +85°C. It is designed for all STM-1and STM-4
applications.
ELECTRO-OPTICAL CHARACTERISTICS
(T
C
= -40 to +85°C, unless otherwise specified)
PART NUMBER
PACKAGE OUTLINE
SYMBOLS
V
F
I
TH
η
d
∆η
d
PARAMETERS AND CONDITIONS
Forward Voltage, I
F
= 30 mA
Threshold Current, T
C
= 25˚C
T
C
= 85˚C
Differential Efficiency from Fiber, T
C
= 25˚C
T
C
= 85˚C
Temperature Dependence of Differential Efficiency
from Fiber,
∆η
d
= 10 log
η
d
(T
C
= 85° C)
η
d
(T
C
= 25° C)
Peak Emission Wavelength, P
f
= 1 mW
Side Mode Suppression Ratio, P
f
= 1 mW
Rise Time, I
b
= 0.9 x I
th
ns
Fall Time, I
b
= 0.9 X I
th
ns
Monitor Current, V
R
= 5 V, P
f
= 2 mW
Monitor Dark Current, V
R
= 5 V, T
C
= 25°C
Tracking Error, I
m
= const.(P
f
= 2 mW, T
C
= 25˚C)
Relative Intensity Noise, Ref = -14 dB, P
f
= 1 mW
µA
nA
dB
dB/Hz
-140
300
0.1
UNITS
V
mA
W/A
dB
0.070
0.035
-3
MIN
0.9
15
35
0.120
0.075
-2
NDL7705P Series
TYP
MAX
1.3
50
λ
p
SMSR
t
r
t
f
I
m
I
D
γ
1
R
IN
Note:
nm
dB
1530
30
1550
0.5
0.5
1570
2500
5
1.0
-130
P
f
1.
γ
= 10 log
2 mW
P
f
(mW)
2
P
f
T
C
= 25°C
T
C
= -40 to +85°C
0
I
m
(at P
f
(25°C) = 2 mW)
I
m
California Eastern Laboratories
NDL7705P SERIES
ABSOLUTE MAXIMUM RATINGS
1
(T
C
= 25°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
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
I
TH
+50
5.0
2.0
2.0
15
-40 to +85
-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 vs.
FORWARD CURRENT
4.0
C
4.0
OPTICAL OUTPUT POWER vs.
MONITOR CURRENT
85
°
C
0
°
C
OPtical Output Power , P
f
(mW)
OPtical Output Power , P
f
(mW)
T
C
= -4
T
C
= -40°C
+25°C
3.0
+85°C
3.0
25
°
2.0
2.0
1.0
1.0
0
20
40
60
80
100
0.0
0.4
0.8
1.2
1.6
2.0
Forward Current, I
F
(mA)
Monitor Current, I
M
(mA)
OPERATING CURRENT AND
THRESHOLD CURRENT vs.
CASE TEMPERATURE
100
FOWARD CURRENT vs.
FORWARD VOLTAGE
50
Threshold Current, I
TH
(mA)
Operation Current, I
OP
(mA)
I
OP
at P
f
= 2 mW
Forward Current, I
F
(mA)
40
30
10
I
TH
20
10
1
-60
-40
-20
0
20
40
60
80
100
0
0.5
1.0
1.5
2.0
2.5
Case Temperature, T
C
(°C)
Forward Voltage, V
F
(V)
NDL7705P SERIES
TYPICAL PERFORMANCE CURVES
(T
C
= 25°C, unless otherwise specified)
TEMPERATURE DEPENDENCE OF
DIFFERENTIAL EFFICIENCY FROM FIBER
TEMPERATURE DEPENDENCE OF
PEAK EMISSION WAVELENGTH
1560
Differential Efficiency from Fiber,
η
d
(W/A)
0.18
Peak Emission Wavelength,
λp
(nm)
-60
-40
-20
0
20
40
60
80
100
1555
0.12
1550
0.06
1545
0.00
1540
-60
-40
-20
0
20
40
60
80
100
Case Temperature, T
C
(°C)
Case Temperature, T
C
(°C)
LONGITUDINAL MODE FROM FIBER
10
0
EYE DIAGRAM
Relative Intensity, (dB)
-10
-20
-30
-40
-50
-60
-70
1540.4
1550.4
1560.4
Relative Intensity, (dB)
622 Mb/s-NRZ, Ref = -14dB,
2 V
p-p
(6 dB ATT), I
B
= I
TH
X 0.9
Time Base (500 ps/div.)
Wavelength,
λ
(nm)
ERROR RATE CHARACTERISTICS
10
-6
T
C
= -40°C,
Ref = -14 dB,
622 Mbps-NRZ,
2 V
p-p
,
I
B
= I
TH
X 0.9
10
-6
T
C
= 25°C,
Ref = -14 dB,
622 Mbps-NRZ,
2 V
p-p
,
I
B
= I
TH
X 0.9
10
-6
10
-7
10
-7
10
-7
T
C
= 85°C,
Ref = -14 dB,
622 Mbps-NRZ,
2 V
p-p
,
I
B
= I
TH
X 0.9
Bit Error Rate
10
-8
10
-8
10
-8
10
-9
10
-10
10
-11
10
-12
-40
-39
-38
-37
-36
-35
-34
-33
back to back
after 200 km
10
-9
10
-10
10
-11
10
-12
-40
-39
-38
-37
-36
-35
-34
-33
back to back
after 200 km
10
-9
10
-10
10
-11
10
-12
-40
-39
-38
-37
-36
-35
-34
-33
back to back
after 200 km
Average Received Power, P (dBm)
NDL7705P SERIES
OUTLINE DIMENSIONS
(Units in mm)
NDL7705P
Optical Fiber
SM-9/125
Length: 1 m
Optical Fiber
SM-9/125
Length: 1 m
NDL7705P1
φ3.2±0.25
φ0.9
φ3.2±0.25
φ0.9
φ7±0.2
15
27.8±1.0
8.2
15
φ7±0.2
27.8±1.0
2±φ2.2
8.2
3.4±0.8
4.6±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
NDL7705P2
Optical Fiber
SM-9/125
Length: 1 m
φ3.2±0.25
φ0.9
ORDERING INFORMATION
15
φ7±0.2
8.2
28.1±1.0
PART NUMBER
NDL7705P
NDL7705PC
NDL7705PD
NDL7705P1
NDL7705P1C
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
NDL7705P1D
NDL7705P2
NDL7705P2C
NDL7705P2D
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
03/15/2000
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