DATA SHEET
LASER DIODE
NDL7670P
1 310 nm OPTICAL CATV/ANALOG APPLICATIONS
InGaAsP MQW-DFB LASER DIODE MODULE
DESCRIPTION
NDL7670P is a 1 310 nm DFB (Distributed Feed-Back) laser diode, that has a newly developed Multiple Quantum
Well (MQW) structure, butterfly package module with optical isolator. It is especially designed for a 8 mW light
source of CATV analog applications.
FEATURES
• Low noise
• Low distortion
• High output power
• Long wavelength
• High isolation
RIN =
ð155
dB/Hz MAX.
CTB =
ð65
dBc
P
f
= 8.0 mW MIN.
O
p
= 1 310 nm
40 dB
8.89 ±0.13 10 MIN.
PACKAGE DIMENSIONS
in millimeters
15.24
2.54
0.51
7
1
12.7 ±0.13
0.9
6.0
CSO =
ð58
dBc
4 -
φ
2.67
15.0
• Internal InGaAs monitor PD
• Internal thermoelectric cooler
• Hermetically sealed 14 pin butterfly package
• Singlemode fiber pigtail
• Wide operating temperature range
11.0 ±0.2
2.03
8
14
20.83 ±0.13
26.04 ±0.13
Optical Fiber
SM-9/125,
Length = 2 m
• High reliability
5.6
ORDERING INFORMATION
Part Number
NDL7670P
NDL7670PC
NDL7670PD
Available Connector
Without Connector
With FC-UPC Connector
With SC-UPC Connector
29.97 ±0.13
PIN CONNECTIONS
PIN No.
1
2
3
4
5
6
7
FUNCTION
COOLER ANODE
THERMISTOR
PD ANODE
PD CATHODE
CASE GROUND
NC
NC
PIN No.
8
9
10
11
12
13
14
FUNCTION
NC
NC
CASE GROUND
LD CATHODE
NC
LD ANODE,
CASE GROUND
COOLER CATHODE
TOP VIEW
#7
#1
THERMISTOR
Cooler
+
PD
LD
#8
–
#14
Document No. P11636EJ3V0DS00 (3rd edition)
(Previous No. LC-2350)
Date Published June 1996 P
Printed in Japan
©
7.0
1993
NDL7670P
ABSOLUTE MAXIMUM RATINGS (T
C
= 25
q
C)
Parameter
Operating Case Temperature
Storage Temperature
Lead Soldering Temperature (10 s)
Optical Output Power
Forward Current of LD
Reverse Voltage of LD
Forward Current of PD
Reverse Voltage of PD
Cooler Current
Cooler Voltage
Symbol
T
C
T
stg
T
sld
P
f
I
F
V
R
I
F
V
R
I
C
V
C
Ratings
ð20
to +65
ð40
to +70
260
15
150
2.0
10
20
1.0
2.0
Unit
qC
qC
qC
mW
mA
V
mA
V
A
V
ELECTRO-OPTICAL CHARACTERISTICS (T
LD
= 25
q
C, T
C
=
ð
20
q
C to +65
q
C)
Parameter
Threshold Current
Forward Voltage
Optical Output Power from Fiber
(Recommended Operating Point)
Spontaneous Emission Power from Fiber
Differential Efficiency from Fiber
Peak Emission Wavelength
Sub-mode Suppression Ratio
1 dB Bandwidth
Relative Intensity Noise
Composite Second Order Distortion
Composite Triple Beat Distortion
Carrier to Noise Ratio
Isolation
Symbol
I
th
V
F
P
op
*1
I
F
= 30 mA
0.9
8.0
Conditions
MIN.
TYP.
20
1.2
MAX.
35
1.4
Unit
mA
V
mW
P
s
I
b
= I
th
P
f
d
P
op
P
f
= P
op
P
f
= P
op
P
f
= P
op
P
f
= P
op
P
f
= P
op
P
f
= P
op
P
f
= P
op
50
35
40
0.16
1 290
30
900
ð155
ð58
ð65
0.22
1 310
35
50
P
W
mW/mA
K
d
O
p
SMSR
f
RIN
*2
CSO
*3
CTB
*3
CNR
*3
I
s
1 330
nm
dB
MHz
ð150
ð55
ð60
dB/Hz
dBc
dBc
dBc
dB
*1.
Recommended P
op
value is supplied with each device.
*2.
Conditions : P
f
= P
op
, CW
Measuring Bandwidth: 50 MHz to 600 MHz
Optical Reflection
ð40
dB
*3.
Conditions : P
f
= P
op
, Optical Modulation Index = 3.5 %/channel
79 channel unmodulated carriers (55.25 MHz to 547.25 MHz)
Optical Reflection
ð40
dB, Optical Loss = 7.0 dB
2
NDL7670P
ELECTRO-OPTICAL CHARACTERISTICS
(Applicable to Monitor PD: T
LD
= 25
°
C, T
C
=
−
20
°
C to +65
°
C)
Parameter
Monitor Current
Dark Current
Tracking Error
Symbol
I
m
I
D
Conditions
V
R
= 5 V, P
f
= P
op
V
R
= 5 V
I
m
= const.
MIN.
50
TYP.
200
2
10
0.5
MAX.
Unit
µ
A
nA
dB
γ
*4
*4.
Tracking Error :
γ
P
f
(mW)
γ
= 10 log P
f
P
op
T
LD
= T
C
= 25 °C
T
LD
= 25 °C,
T
C
= – 20 to + 65 °C
P
op
P
f
0
I
m
I
m
(@ P
f(25 °C)
= P
op
)
ELECTRO-OPTICAL CHARACTERISTICS
(Applicable to Thermistor and TE Cooler: T
LD
= 25
°
C, T
C
=
−
20
°
C to +65
°
C)
Parameter
Thermistor Resistance
Cooler Current
Cooler Voltage
Cooling Capacity
Symbol
R
*5
Conditions
T
LD
= 25
°C
MIN.
9.5
TYP.
10
0.6
1.1
MAX.
10.5
0.8
1.5
Unit
kΩ
A
V
K
I
C
V
C
∆
T = 40 K
∆
T = 40 K
I
C
= 0.8 A, P
f
= P
op
40
∆
T
*6
*5.
B Constant = 3 400
±100
K
*6.
∆
T = |T
C
- T
LD
|
TYPICAL CHARACTERISTICS (Tc = 25
°
C)
FORWARD CURRENT
VS.
FORWARD VOLTAGE
50
Output Power from Fiber P
f
(mA)
OUTPUT POWER FROM FIBER
VS.
LD FORWARD CURRENT
8
7
6
5
4
3
2
1
0
10
20
30
40
50
60
Forward Current I
F
(mA)
40
30
20
10
0
1
Forward V
F
(V)
2
Forward Current I
F
(mA)
3
NDL7670P
OUTPUT POWER FROM FIBER
VS.
LD MONITOR CURRENT
Optical Output Power from Fiber P
f
(mW)
9
8
7
6
5
4
3
2
1
0
Monitor Current I
m
(mA)
0.5
Thermister Resistance R (kΩ)
50
30
20
10
TYPICAL THERMISTOR RESISTANCE
VS.
CASE TEMPERATURE
5
3
2
1
0
25
50
75
Case Temperature T
C
(˚C)
LONGITUDINAL MODE
10
5
FREQUENCY RESPONSE
P
f
= P
op
Relative Response (dB)
Relative Intensity (dB)
–30
0
–70
1 300
1 310
Wavelength
λ
(nm)
1 320
–5
0
0.2
0.4
0.6
0.8
1.0
Frequency f (GHz)
RIN
VS.
FREQUENCY
–120
Relative Intensity Noise RIN (dB/Hz)
P
f
= P
op
Optical reflection
= –40 dB
–130
–140
–150
–160
–170
0
100
200
300
400
500
600
700
Frequency f (MHz)
4
NDL7670P
DFB LASER DIODE FAMILY FOR CATV/ANALOG APPLICATIONS
Features
Packages
14 pin BFY
module with
SMF
3 mW min.
NDL7680P
P
op
: Operating point power (min. value)
Remarks
4 mW min.
NDL7650P
6 mW min.
NDL7660P
8 mW min.
NDL7670P
12 mW min. 15 mW min.
NDL7672P
NDL7673P
BFY module with monitor
PD, TEC, thermistor,
isolator
REFERENCE
Document Name
NEC semiconductor device reliability/quality control system
Quality grade on NEC semiconductor devices
Semiconductor device mounting technology manual
Guide to quality assurance for semiconductor devices
Semiconductor selection guide
Document No.
LEI-1201
IEI-1209
C10535E
MEI-1202
X10679E
5
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