NEC's 1310 nm InGaAsP MQW FP
TOSA FOR SHORT HAUL
NX7312UA
155 Mb/s and 622 Mb/s APPLICATIONS
DESCRIPTION
FEATURES
• OPTICAL OUTPUT POWER:
Pf = 0.2 mW
NEC'sNX7312UAisa1310nmMultipleQuantumWell(MQW)
structured Fabry-Perot (FP) laser diode TOSA (transmitter
optical subassembly) with InGaAs monitor PIN-PD in a recep-
tacle type package designed for SFF/SFP transceiver with LC
duplex receptacle. This device is ideal for Synchronous Digital
Hierarchy (SDH) systems, short haul STM-1 (S-S.1)and short
haul STM-4 (S-4.1), ITU-T recommendations, and SONET
OC-3(IR) and OC-12(IR).
• LOW THRESHOLD CURRENT
Ith = 8 mA TYP @ TC = 25°C
• WIDE OPERATING TEMPERATURE RANGE:
-40 to +85°C
• InGaAs MONITOR PIN-PD
• SMALL PACKAGE
ø3.8 mm TOSA (Total length 12.0 mm MAX)
• BASED ON TELCORDIA RELIABILITY GR-468-CORE
ELECTRO-OPTICAL CHARACTERISTICS (TC = -40 to +85°C, unless otherwise specified)
PART NUMBER
NX7312UA
SYMBOLS
VOP
PARAMETERS AND CONDITIONS
UNITS
MIN
TYP
MAX
Operating Voltage, CW, Pf = 0.2 mW
V
–
1.2
1.5
ITH
Threshold Current
CW, TC = 25°C
CW
mA
mA
4
2
8
–
20
50
ηd
ifferential Efficiency
CW, TC = 25°C
W/A
W/A
mW
0.008
0.005
–
0.020
—
0.025
0.040
–
CW
Pf
Optical Output Power, CW
0.2
IMOD
Modulation Current
CW, Pf = 0.2 mW, TC = 25°C
CW, Pf = 0.2 mW
mA
mA
8
5
10
–
25
40
λc
Center Emission Wavelength,
CW, Pf = 0.2 mW, RMS (-20 dB)
nm
nm
ns
1274
–
–
–
–
–
–
1356
2.5
σ
tr
Spectral Width, CW, Pf = 0.2 mW, RMS (-20 dB)
Rise Time, IB = ITH, 10 to 90%
–
0.5
tf
Fall Time, IB = ITH, 90 to 10%
ns
–
0.5
Im
ID
Monitor Current, CW, Pf = 0.1 mW, VR = 1.5 V
µA
100
1000
Monitor Dark Current
VR = 1.5 V, TC = 25 °C
nA
nA
–
–
–
–
50
500
VR = 1.5 V
γ
Tracking Error1, CW, Im = const. (Pf = 0.2 mW)
Connector Repeatability, master pigtail
dB
dB
-1.5
-1.0
–
–
1.5
1.0
Note:
1. Tracking Error : γ
P
o
P
o
γ = 10 log
[dB]
(mW)
5.0
T
C = 25°C
5.0
TC = –40 to +85°C
P
o
I
m
0
Im
(mA)
California Eastern Laboratories