DATA SHEET
LASER DIODE
NDL7605P Series
1 310 nm OPTICAL CATV RETURN PATH APPLICATIONS
InGaAsP MQW DFB LASER DIODE MODULE WITH ISOLATOR
DESCRIPTION
The NDL7605P Series is a 1 310 nm uncooled isolated coaxial DFB laser diode. It is especially designed for
optical CATV return path applications.
FEATURES
• Low distortion
IMD2 =
−50
dBc MAX. @ T
C
= 25
°C
*1
*1
*1
IMD2 =
−45
dBc MAX. @ T
C
=
−40
to +85
°C
IMD3 =
−60
dBc MAX. @ T
C
=
−40
to +85
°C
• Output power
• Long wavelength
P
f
= 2.0 mW
λ
p
= 1 310 nm
• Internal InGaAs monitor PD and isolator
• Single mode fiber pigtail with FC-UPC, SC-UPC or SC-APC connector
• Wide operating temperature range
T
C
=
−40
to +85
°C
*1
2-ch, Optical loss = 7 dB, OMI = 10 %/ch
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. P14039EJ2V0DS00 (2nd edition)
Date Published July 1999 NS CP(K)
Printed in Japan
The mark
•
shows major revised points.
©
1999
NDL7605P Series
PACKAGE DIMENSIONS (in millimeters)
NDL7605P
Optical Fiber
SM-9/125
Length: 1 m
NDL7605P1
φ
0.9
Optical Fiber
SM-9/125
Length: 1 m
φ
3.2±0.25
φ
3.2±0.25
φ
0.9
φ
7±0.2
φ
7±0.2
29.0±1.0
15
15
20±1.0
4.0±0.2
29.0±1.0
8
8
4.1±0.8
5.3±0.8
2–
φ
2.2
φ
0.45±0.05
2.0±0.2
20±1.0
φ
0.45±0.05
φ
6±0.1
φ
6±0.1
12.7±0.2
17.0±0.2
PIN CONNECTIONS
φ
7±0.2
P.C.D. =
φ
2
PD
4 3
1 2
PIN CONNECTIONS
3
2
LD
4 3
4
1
CASE
3.7±0.3
7.2±0.3
P.C.D. =
φ
2
PD
4
1
LD
CASE
3
2
1 2
NDL7605P2
Optical Fiber
SM-9/125
Length: 1 m
NDL7605P4
φ
0.9
12.6±0.2
12.6±0.2
24.7±1.0
Optical Fiber
SM-9/125
Length: 1 m
φ
3.2±0.25
1.0±0.1
φ
7±0.2
15
6.3±0.2
12.6±0.2
29.3±1.0
5.1±0.1
5.1±0.2
φ
7±0.2
8
0.5±0.2
2.5±1.0
19.5±1.0
0.3
0.3
2.54±0.3
3.81±0.3
3
4–0.5
PIN 1, 4, 5, 8
4
3
2
1
5
6
7
8
3.6±0.5
4–
φ
0.45±0.05
1.27±0.2
2.54±0.3
PIN CONNECTIONS
φ
1
6
2
3
4
1
PIN CONNECTIONS
Pin No.
1
2
3
4
5
6
7
8
Function
NC
PD anode
PD cathode
NC
NC
LD cathode
LD anode
NC
P.C.D. =
φ
2
2–
φ
2.5
PD
3
2
1
CASE
7±0.2
2
12±0.15
16.0
4 LD
4–
φ
0.45
PIN 2, 3, 6, 7
2
Data Sheet P14039EJ2V0DS00
10.2±0.2
0.2
NDL7605P Series
ORDERING INFORMATION
Part Number
NDL7605PC
NDL7605PD
NDL7605PX
NDL7605P1C
NDL7605P1D
NDL7605P1X
NDL7605P2C
NDL7605P2D
NDL7605P2X
NDL7605P4C
NDL7605P4D
NDL7605P4X
Available Connector
With FC-UPC Connector
With SC-UPC Connector
With SC-APC Connector
With FC-UPC Connector
With SC-UPC Connector
With SC-APC Connector
With FC-UPC Connector
With SC-UPC Connector
With SC-APC Connector
With FC-UPC Connector
With SC-UPC Connector
With SC-APC Connector
Lead Bend
Vertical Flange
Flat Mount Flange
Flange Type
No Flange
ABSOLUTE MAXIMUM RATINGS (T
C
= 25
°
C, unless otherwise specified)
Parameter
Optical Output Power from Fiber
Forward Current of LD
Reverse Voltage of LD
Forward Current of PD
Reverse Voltage of PD
Operating Case Temperature
Storage Temperature
Lead Soldering Temperature (10 s)
Symbol
P
f
I
F
V
R
I
F
V
R
T
C
T
stg
T
sld
Ratings
5
I
th
+ 50
2.0
10
15
−40
to +85
−40
to +85
260
Unit
mW
mA
V
mA
V
°C
°C
°C
Data Sheet P14039EJ2V0DS00
3
NDL7605P Series
ELECTRO-OPTICAL CHARACTERISTICS
(T
C
= 25
°
C, Optical Reflection
≤ −
50 dB, unless otherwise specified)
Parameter
Forward Voltage
Optical Output Power from Fiber
Threshold Current
Symbol
V
F
P
f
I
th
I
F
= 30 mA
CW
CW
CW, T
C
= 85
°C
Differential Efficiency from Fiber
Temperature Dependence of
Differential Efficiency from Fiber
Peak Emission Wavelength
Side Mode Suppression Ratio
2nd Order Inter-modulation Distortion
Conditions
MIN.
0.9
TYP.
1.1
2.0
15
40
0.080
−3.0
0.200
30
60
W/A
dB
MAX.
1.3
Unit
V
mW
mA
η
d
∆η
d
λ
p
SMSR
IMD2
P
f
= 2.0 mW
P
f
= 2.0 mW,
η
(85
°C)
/
η
(25
°C)
P
f
= 2.0 mW, RMS (−20 dB)
P
f
= 2.0 mW
*1
*1,
T
C
=
−40
to +85
°C
1 290
30
1 310
1 330
nm
dB
−50
−45
−60
52
100
500
0.1
1 000
10
1.5
dBc
3rd Order Inter-modulation Distortion
Carrier to Noise Ratio
Monitor Current
Dark Current
Tracking Error
IMD3
CNR
I
m
I
D
γ
*2
*1,
T
C
=
−40
to +85
°C
*1,
T
C
=
−40
to +85
°C
V
R
= 5 V, P
f
= 2.0 mW
V
R
= 5 V
I
m
= const., P
f
= 2.0 mW,
T
C
=
−40
to +85
°C
30
dBc
dB
µ
A
nA
dB
Optical Isolation
ISO
dB
*1
Conditions: P
f
= 2.0 mW, T
C
= 25
°C,
2 channel unmodulated carriers 13 MHz and 19 MHz,
Optical Reflection =
−50
dB, Optical Loss = 7 dB, OMI = 10 %/ch
*2
γ
= 10 log
P
f
2.0 mW
P
f
(mW)
T
C
= 25 ˚C
2.0
P
f
T
C
= –40 to +85 ˚C
0
I
m
(@ P
f
(25 ˚C) = 2.0 mW)
I
m
4
Data Sheet P14039EJ2V0DS00
NDL7605P Series
TYPICAL CHARACTERISTICS (T
C
= 25
°
C, unless otherwise specified)
OPTICAL OUTPUT POWER FROM
FORWARD CURRENT
Optical Output Power from Fiber P
f
(mW)
OPERATING CURRENT AND THRESHOLD
CURRENT vs. CASE TEMPERATURE
100
5.0
T
C
=
–40 ˚C
4.0
+25 ˚C
+85
˚C
Operating Current I
op
(mA),
Threshold Current I
th
(mA)
I
op
@P
f
= 2 mW
3.0
10
I
th
2.0
1.0
0
20
40
60
80
100
1
–60 –40
–20
0
20
40
60
80
100
Forward Current I
F
(mA)
Case Temperature T
C
(˚C)
TEMPERATURE DEPENEDENCE OF
DIFFERENTIAL EFFICIENCY FROM FIBER
Differential Efficiency from Fiber
η
d
(W/A)
Optical Output Power from Fiber P
f
(mW)
OPTICAL OUTPUT POWER FROM
FIBER vs.MONITOR CURRENT
5.0
0.18
4.0
0.12
3.0
2.0
0.06
1.0
0.00
–60 –40
–20
0
20
40
60
80
100
0
0.5
1.0
1.5
Case Temperature T
C
(˚C)
Monitor Current I
m
(mA)
FORWARD CURRENT vs.
FORWARD VOLTAGE
100
10
0
Forward Current I
F
(mA)
Relative Intensity (dB)
LONGITUDINAL MODE FROM FIBER
80
–10
–20
–30
–40
–50
–60
60
40
20
0
0.5
1.0
1.5
2.0
2.5
–70
1 300
1 310
Wavelength
λ
(nm)
1 320
Forward Voltage V
F
(V)
Data Sheet P14039EJ2V0DS00
5
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