Preliminary
Data Sheet
NX7539BB-AA
LASER DIODE
1 550 nm InGaAsP MQW-FP LASER DIODE COAXIAL MODULE FOR OTDR APPLICATION
R08DS0008EJ0300
Rev.3.00
Sep 19, 2010
DESCRIPTION
<R>
The NX7539BB-AA is a 1 550 nm Multiple Quantum Well (MQW) structured
Fabry-Perot (FP) laser diode coaxial module with single mode fiber.
source of Optical Time Domain Reflectometer (OTDR).
This
module is specified to operate under pulsed condition and designed for light
FEATURES
• High output power
• Long wavelength
*1
P
f
= 40 mW @ I
FP
= 400 mA
λ
C
= 1 550 nm
*1
Pulse Conditions: Pulse width (PW) = 10
μ
s, Duty = 1%
The mark <R> shows major revised points.
The revised points can be easily searched by copying an "<R>" in the PDF file and specifying it in the "Find what:" field.
R08DS0008EJ0300 Rev.3.00
Sep 19, 2010
Page 1 of 6
NX7539BB-AA
<R>
PACKAGE DIMENSIONS (UNIT: mm)
Chapter Title
Optical Fiber
SMF
Length: 1 m MIN.
φ
0.9
φ
7.0
2–
φ
2.2
24.4
4
7.0
12.7
17.0
PIN CONNECTIONS
P.C.D. =
φ
2
3.7
7.2
4
3
14.5
φ
0.45
1
LD
CASE
2
1 2
OPTICAL FIBER CHARACTERISTICS
Parameter
Mode Field Diameter
Cladding Diameter
Maximum Cladding Noncircularity
Maximum Core/Cladding Concentricity
Outer Diameter
Cut-off Wavelength
Minimum Fiber Bending Radius
Fiber Length
Specification
9.3±0.5
125±2
2
1.6
0.9±0.1
1 140 to 1 280
30
1 000 MIN.
Unit
1
μ
m
μ
m
%
%
mm
nm
mm
mm
<R>
Ferrule
Fiber Length: 1 000 mm MIN.
R08DS0008EJ0300 Rev.3.00
Sep 19, 2010
Page 2 of 6
NX7539BB-AA
ORDERING INFORMATION
Part Number
NX7539BB-AA
FIange Type
flat mount flange
Chapter Title
ABSOLUTE MAXIMUM RATINGS
Parameter
Pulsed Forward Current
Reverse Voltage
Operating Case Temperature
Storage Temperature
Lead Soldering Temperature
Relative Humidity (noncondensing)
*1
Symbol
I
FP
V
R
T
C
T
stg
T
sld
RH
Ratings
600
2.0
−20
to +60
−40
to +85
350 (3 sec.)
85
Unit
mA
V
°C
°C
°C
%
*1
Pulse Condition: Pulse Width (PW) = 10
μ
s, Duty = 1%
ELECTRO-OPTICAL CHARACTERISTICS (T
C
= 25°C)
Parameter
Forward Voltage
Symbol
V
FP
Conditions
I
FP
= 400 mA,
PW = 10
μ
s, Duty = 1%
Threshold Current
Optical Output Power from Fiber
I
th
P
f
λ
C
σ
I
FP
= 400 mA,
PW = 10
μ
s, Duty = 1%
Center Wavelength
RMS (−20 dB), I
FP
= 400 mA,
PW = 10
μ
s, Duty = 1%
Spectral Width
RMS (−20 dB), I
FP
= 400 mA,
PW = 10
μ
s, Duty = 1%
Rise Time
Fall Time
t
r
t
f
10-90%
90-10%
2.0
2.0
ns
ns
6.0
10.0
nm
1 530
1 550
1 570
nm
20
40
40
50
mA
mW
MIN.
TYP.
2.5
MAX.
4.0
Unit
V
ELECTRO-OPTICAL CHARACTERISTICS (T
C
= 0 to +60°C)
Parameter
Threshold Current
Optical Output Power from Fiber
Symbol
I
th
P
f
λ
C
I
FP
= 400 mA,
PW = 10
μ
s, Duty = 1%
Center Wavelength
RMS (−20 dB), I
FP
= 400 mA,
PW = 10
μ
s, Duty = 1%
Temperature Dependency of
Center Wavelength
Spectral Width
1 520
1 585
nm
10
Conditions
MIN.
TYP.
MAX.
75
Unit
mA
mW
Δ
λ/
Δ
T
σ
RMS (−20 dB), I
FP
= 400 mA,
PW = 10
μ
s, Duty = 1%
0.35
nm/°C
10
nm
R08DS0008EJ0300 Rev.3.00
Sep 19, 2010
Page 3 of 6
NX7539BB-AA
TYPICAL CHARACTERISTICS (T
C
= 25°C, unless otherwise specified)
OPTICAL OUTPUT POWER FROM
FIBER vs. PULSED FORWARD
CURRENT
Optical Output Power from Fiber P
f
(mW)
50
Chapter Title
SPECTRUM
Relative Intensity (Linear Scale)
PW = 10
μ
s,
Duty = 1%
40
30
T
C
= 25°C
60°C
20
10
0
100
200
300
400
1 550
Wavelength
λ
(nm)
5 nm/div
Pulsed Forward Current I
FP
(mA)
Remark
The graphs indicate nominal characteristics.
R08DS0008EJ0300 Rev.3.00
Sep 19, 2010
Page 4 of 6
NX7539BB-AA
REFERENCE
Document Name
Opto-Electronics Devices Pamphlet
*1
Chapter Title
Document No.
PX10160E
*1
Published by the former NEC Electronics Corporation.
R08DS0008EJ0300 Rev.3.00
Sep 19, 2010
Page 5 of 6
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