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NX7437AG-AA
NX7437BF-AA
NX7437 Series
LASER DIODE
1 490 nm InGaAsP MQW-FP LASER DIODE COAXIAL MODULE FOR OTDR APPLICATION
DESCRIPTION
The NX7437 Series is a 1 490 nm Multiple Quantum Well (MQW) structured
Fabry-Perot (FP) laser diode coaxial module with single mode fiber. This
module is specified to operate under pulsed condition and designed for light
source of Optical Time Domain Reflectometer (OTDR).
FEATURES
•High output power Pf = 90 mW @ IFP = 400 mA*1
•Long wavelength C = 1 490 nm
•NX7437AG-AA has a built-in monitor PD.
*1 Pulse Conditions: Pulse width (PW) = 10
s, Duty = 1%
Data Sheet
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0 Rev.1.00
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PACKAGE DIMENSIONS (UNIT: mm)
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OPTICAL FIBER CHARACTERISTICS
Parameter
Specification
Unit
Mode Field Diameter
9.51
m
Cladding Diameter
1252
m
Maximum Cladding Noncircularity
2
%
Maximum Core/Cladding Concentricity
1.6
%
Outer Diameter
0.90.1
mm
Cut-off Wavelength
1 140 to 1 280
nm
Minimum Fiber Bending Radius
30
mm
Fiber Length
1 000 MIN.
mm
NX7437 Series
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ORDERING INFORMATION
Part Number
FIange Type
NX7437AG-AA
without flange
NX7437BF-AA
flat mount flange
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Unit
Pulsed Forward Current*1
IFP
mA
Reverse Voltage
VR
V
Reverse Voltage
(monitor PD, NX7437AG-AA only)
VRM
V
Forward Current
(monitor PD, NX7437AG-AA only)
IFPM
mA
Operating Case Temperature
TC
C
Storage Temperature
Tstg
C
Lead Soldering Temperature
Tsld
C
Relative Humidity (noncondensing)
RH
%
*1 Pulse Condition: Pulse Width (PW) = 10
s, Duty = 1%
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ELECTRO-OPTICAL CHARACTERISTICS (TC = 25C)
Parameter
Symbol
MIN.
TYP.
MAX.
Unit
Forward Voltage
VFP
3.0
V
Threshold Current
Ith
15
50
mA
Optical Output Power from Fiber
Pf
60
90
mW
Center Wavelength
C
1 470
1 510
nm
Spectral Width
5
10
nm
Rise Time
tr
2.0
ns
Fall Time
tf
2.0
ns
Monitor Current
(NX7437AG-AA only)
Im
0.02
0.8
mA
ELECTRO-OPTICAL CHARACTERISTICS (TC = 0 to +60C)
Parameter
Symbol
MIN.
TYP.
MAX.
Unit
Optical Output Power from Fiber
Pf
40
mW
Spectral Width
5
10
nm
NX7437 Series
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TYPICAL CHARACTERISTICS (TC = 25C, unless otherwise specified)
Remark The graphs indicate nominal characteristics.
NX7437 Series
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REFERENCE
Document Name
Document No.
Opto-Electronics Devices Pamphlet*1
PX10160E
*1 Published by the former NEC Electronics Corporation.
NX7437 Series
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SAFETY INFORMATION ON THIS PRODUCT
Warning Laser Beam
A laser beam is emitted from this diode during operation.
The laser beam, visible or invisible, directly or indirectly, may cause injury to the eye or loss of
eyesight.
•Do not look directly into the laser beam.
•Avoid exposure to the laser beam, any reflected or collimated beam.
Caution GaAs Products
This product uses gallium arsenide (GaAs).
GaAs vapor and powder are hazardous to human health if inhaled or ingested, so please observe
the following points.
• Follow related laws and ordinances when disposing of the product. If there are no applicable laws
and/or ordinances, dispose of the product as recommended below.
1. Commission a disposal company able to (with a license to) collect, transport and dispose of
materials that contain arsenic and other such industrial waste materials.
2. Exclude the product from general industrial waste and household garbage, and ensure that the
product is controlled (as industrial waste subject to special control) up until final disposal.
• Do not burn, destroy, cut, crush, or chemically dissolve the product.
• Do not lick the product or in any way allow it to enter the mouth.
Caution Optical Fiber
A glass-fiber is attached on the product. Handle with care.
•When the fiber is broken or damaged, handle carefully to avoid injury from the damaged part
or fragments.
NX7437 Series
DANGER
INVISIBLE LASER RADIATION
AVOID DIRECT EXPOSURE TO BEAM
OUTPUT POWER mW MAX
nmWAVELENGTH
CLASS lllb LASER PRODUCT
AVOID EXPOSURE-Invisible
Laser Radiation is emitted from
this aperture
SEMICONDUCTOR LASER
All trademarks and registered trademarks are the property of their respective owners.
C - 1
Revision History
NX7437 Series Data Sheet
Rev.
Date
Description
Page
Summary
1.00
Mar 03, 2011
First edition issued
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