LASER DIODE
NX7639BB-AA
1 625 nm InGaAsP MQW-FP LASER DIODE
COAXIAL MODULE FOR OTDR APPLICATION
1550nm OTDR APPLICATION
DIODE MODULE
Document No. PL10795EJ01V0DS (1st edition)
Date Published March 2010 NS
DESCRIPTION
The NX7639BB-AA is a 1 625 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 = 70 mW @ IFP = 1 000 mA*1
• Long wavelength C = 1 625 nm
*1 Pulse Conditions: Pulse width (PW) = 10
s, Duty = 1%
Data Sheet PL10795EJ01V0DS
2
NX7639BB-AA
PACKAGE DIMENSIONS (UNIT: mm)
OPTICAL FIBER CHARACTERISTICS
Parameter
Specification
Mode Field Diameter
9.51
Cladding Diameter
1252
Maximum Cladding Noncircularity
2
Maximum Core/Cladding Concentricity
1.6
Outer Diameter
0.90.1
Cut-off Wavelength
1 140 to 1 280
Minimum Fiber Bending Radius
30
Fiber Length
1 000 MIN.
Data Sheet PL10795EJ01V0DS
3
NX7639BB-AA
ORDERING INFORMATION
Part Number
FIange Type
NX7639BB-AA
flat mount flange
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Ratings
Pulsed Forward Current*1
IFP
1 200
Reverse Voltage
VR
2.0
Operating Case Temperature
TC
20 to +60
Storage Temperature
Tstg
40 to +85
Lead Soldering Temperature
Tsld
350 (3 sec.)
Relative Humidity (noncondensing)
RH
85
*1 Pulse Condition: Pulse Width (PW) = 10
s, Duty = 1%
ELECTRO-OPTICAL CHARACTERISTICS (TC = 25C)
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Forward Voltage
VFP
IFP = 1 000 mA,
PW = 10
s, Duty = 1%
4.0
V
Threshold Current
Ith
45
70
mA
Optical Output Power from Fiber
Pf
IFP = 1 000 mA,
PW = 10
s, Duty = 1%
40
70
mW
IFP = 1 000 mA,
PW = 10
s, Duty = 1%,
TC = 0 to +60C
20
Center Wavelength
C
RMS (20 dB), IFP = 1 000 mA,
PW = 10
s, Duty = 1%
1 615
1 635
nm
Spectral Width
RMS (20 dB), IFP = 1 000 mA,
PW = 10
s, Duty = 1%,
TC = 0 to +60C
15
nm
Rise Time
tr
10-90%
2.0
ns
Fall Time
tf
90-10%
2.0
ns
Data Sheet PL10795EJ01V0DS
4
NX7639BB-AA
REFERENCE
Document Name
Document No.
Opto-Electronics Devices Pamphlet
PX10160E
NX7639BB-AA
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.
DANGER
INVISIBLE LASER RADIATION
AVOID DIRECT EXPOSURE TO BEAM
OUTPUT POWER mW MAX
nmWAVELENGTH
CLASS lllb LASER PRODUCT
SEMICONDUCTOR LASER
AVOID EXPOSURE-Invisible
Laser Radiation is emitted from
this aperture
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