PRELIMINARY DATA SHEET
InGaAsP STRAINED
MQW-DC-PBH PULSED LASER DIODE
NX7561JB
MODULE FOR 1550 nm OTDR APPLICATION
FEATURES
DESCRIPTION
The NX7561JB is a 1550 nm developed strained Multiple
Quantum Well (st-MQW) structure pulsed laser diode DIP
module with single mode fiber and internal thermoelectric
cooler. It is designed for light sources of optical measurement
equipment (OTDR).
• HIGH OUTPUT POWER:
Pf = 135 mW MIN at IFP = 1000 mA,
Pulse width (PW) = 10ms, Duty = 1%
• LONG WAVELENGTH:
λC = 1550 nm
• INTERNAL THERMOELECTRIC COOLER
• HERMETICALLY SEALED 14 PIN DUAL-IN-LINE PACKAGE
• SINGLE MODE FIBER PIGTAIL
ELECTRO-OPTICAL CHARACTERISTICS (TLD = 25°C, TC = -20 to +65°C, unless otherwise specified)
PART NUMBER
NX7561JB
TYP
SYMBOLS
PARAMETERS AND CONDITIONS
UNITS
V
MIN
MAX
4.0
VFP
ITH
Pf
Forward Voltage, CW, IF = 30 mA
2.5
Threshold Current, CW
mA
40
70
Optical Output Power from Fiber IFP = 1000 mA1
IFP = 600 mA1
mW
mW
135
70
IFP = 400 mA1
Center Wavelength, RMS, IFP = 400, 600, 1000 mA1
mW
nm
20
λC
1530
1550
4.0
1570
8.0
σ
Spectral Width, RMS, IFP = 400, 600, 1000 mA1
nm
tr
tf
Rise Time, 10-90%
Fall Time, 90-10%
ns
ns
1.0
1.4
2.0
2.0
Note:
1. PW = 10 µs, Duty = 1%
ELECTRO-OPTICAL CHARACTERISTICS
APPLICABLE TO THERMISTOR AND TEC: (TLD = 25°C, TC = -20 to +65°C, unless otherwise specified)
PART NUMBER
NX7561JB
SYMBOLS
PARAMETERS AND CONDITIONS
UNITS
MIN
9.5
TYP
10.0
3400
0.6
MAX
10.5
3500
0.8
R1
B
Thermistor Resistance, TLD = 25°C
kΩ
K
B Constant
3300
IC
Cooler Current, ∆T = 40 K
Cooler Voltage, ∆T = 40 K
Cooling Capacity, IC = 0.8 A
A
VC
∆T1
V
1.1
1.5
K
40
Note:
1. ∆T = | TC - TLD |.
California Eastern Laboratories
