NEC's InGaAsP
MQW-DFB TOSA FOR 2.5 Gb/s
CWDM APPLICATIONS
NX8510UD
Series
FEATURES
INTERNAL OPTICAL ISOLATOR
PEAK EMISSION WAVELENGTH
p
= 1 470 to 1 610 nm
(Based on ITU-T recommendations)
OPTICAL OUTPUT POWER
P
f
= 2.0 mW
OPERATING CASE TEMPERATURE RANGE
T
C
=
-20 to +85C
LOW THRESHOLD CURRENT
l
th
= 10 mA TYP. @ TC = 25C
SIDE MODE SUPPRESSION RATIO
SMSR = 40 dB
InGaAs MONITOR PIN-PD
SMALL PACKAGE
3.8 mm TOSA (Total length 12.0 mm MAX.)
NEC's NX8510UD is a 1 470 to 1 610 nm Multiple Quantum
Well (MQW) structured Distributed Feed-Back (DFB) laser
diode TOSA (transmitter optical sub-assembly) with InGaAs
monitor PIN-PD in a receptacle type package designed
for SFF/SFP transceiver with LC duplex receptacle. This
device is ideal for 2.5 Gb/s CWDM application.
DESCRIPTION
California Eastern Laboratories
PRELIMINARY DATA SHEET
NX8510UD Series
PACKAGE DIMENSIONS
(Units in mm)
BOTTOM VIEW
1
4
3
2
PIN CONNECTIONS
1 (CASE)
4
3
2
LD
PD
4.0450.05
6.990.
2
12.0 MAX.
6.50.5
0.550.05
1.10.05
(1.1
)
(2.55)
1.
0
P.C.D
OPTICAL
REFERENCE
PLANE
2.92
+0.05
-0.17
3.40.03
1.43
4 0.3
3.8
4.750.1
NX8510UD Series
ABSOLUTE MAXIMUM RATINGS
Wavelength code : Refer to
Table A
NX8510UD xx
Package code : Refer to
PACKAGE DIMENSIONS
PARAMETER
SYMBOL
RATINGS
UNIT
Optical Output Power from Fiber
P
f
5.0
mW
Forward Current of LD
I
F
150
mA
Reverse Voltage of LD
V
R
2.0
V
Forward Current of PD
I
F
2.0
mA
Reverse Voltage of PD
V
R
15
V
Operating Case Temperature
T
C
-
20 to +85
C
Storage Temperature
T
stg
-
40 to +85
C
Lead Soldering Temperature
T
sld
350 (3 sec.)
C
PART NUMBER
PACKAGE
NX8510UD-AZ*
3.8 mm TOSA
*NOTE:
Please refer to the last page of this data sheet, "Compliance with EU Directives" for Pb-Free RoHS Compliance Infomation.
ORDERING INFORMATION
NX8510UD Series
ELECTRO-OPTICAL CHARACTERISTICS
(T
C
= -20 to +85C, unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Operating Voltage
V
op
CW, P
f
= 2.0 mW
1.1
1.6
V
Threshold Current
I
th
CW, T
C
= 25C
10
20
mA
CW
50
Optical Output Power from Fiber
P
f
CW, T
C
= 25C, I
F
= I
th
+ 20 mA
2.0
mW
Differential Efficiency
d
CW, P
f
= 2.0 mW, T
C
= 25C
0.07
0.1
W/A
CW, P
f
= 2.0 mW
0.04
Peak Emission Wavelength
p
CW, P
f
= 2.0 mW, RMS (-20 dB),
T
C
= 35C
p
-
2
p
*1
p
+2
nm
Temperature Dependence of Peak
Emission Wavelength
/T
CW
0.08
0.10
0.12
nm/C
Side Mode Suppression Ratio
SMSR
CW, P
f
= 2.0 mW
30
40
dB
Rise Time
t
r
I
b
= I
th,
20-80%, P
f
= 2.0 mW
100
ps
Fall Time
t
f
I
b
= I
th,
80-20%, P
f
= 2.0 mW
150
ps
Monitor Current
I
m
CW, V
R
= 1.5 V, P
f
= 1.0 mW
100
500
1 000
A
Monitor Dark Current
I
D
V
R
= 1.5 V, T
C
= 25C
0.1
10
nA
V
R
= 1.5 V
10
100
Tracking Error
*2
CW, I
m
= const. (@ P
f
= 2.0 mW)
-
1.0
1.0
dB
Connector Repeatability
-
With master pigtail
-
1.0
1.0
dB
*1 Available Available for CWDM Wavelengths based on ITU-T recommendations
p
= 1 470, 1 490, 1 510, 1 530, 1 550, 1 570, 1 590, 1 610 nm
Please refer to
Table A.
Table A: CWDM wavelength code
(@ T
C
= 35C)
WAVELENGTH CODE
MIN. (NM)
TYP. (NM)
MAX. (NM)
47
1 468
1 470
1 472
49
1 488
1 490
1 492
51
1 508
1 510
1 512
53
1 528
1 530
1 532
55
1 548
1 550
1 552
57
1 568
1 570
1 572
59
1 588
1 590
1 592
61
1 608
1 610
1 612
NX8510UD Series
0
I
m
I
m
T
C
= 25C
T
C
= 20 to +85C
P
f
(mW)
P
f
2.0
(mA)
= 10 log
[dB]
P
f
2.0
*2 Tracking Error:
Life Support Applications
These NEC products are not intended for use in life support devices, appliances, or systems where the malfunction of these products can reasonably
be expected to result in personal injury. The customers of CEL using or selling these products for use in such applications do so at their own risk and
agree to fully indemnify CEL for all damages resulting from such improper use or sale.
A Business Partner of NEC Compound Semiconductor Devices, Ltd.
06/28/2004
PDF 
ZIP