PRELIMINARY DATA SHEET
LASER DIODE
NX8510UD Series
1 470 TO 1 610 nm FOR CWDM 2.5 Gb/s
InGaAsP MQW-DFB LASER DIODE TOSA
DESCRIPTION
The 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.
FEATURES
• Internal optical isolator
• Optical output power
• Peak emission wavelength
• Low threshold current
• Operating case temperature range
• Side mode suppression ratio
• InGaAs monitor PIN-PD
• Small package
P
f
= 2.0 mW
λ
p
= 1 470 to 1 610 nm (Based on CWDM)
l
th
= 10 mA TYP. @ T
C
= 25°C
T
C
=
−20
to +85°C
SMSR = 40 dB
φ
3.8 mm TOSA (Total length 12.0 mm MAX.)
The information in this document is subject to change without notice. Before using this document, please confirm that
this is the latest version.
Not all devices/types available in every country. Please check with local NEC Compound Semiconductor Devices
representative for availability and additional information.
Document No. PL10434EJ02V0DS (2nd edition)
Date Published March 2004 CP(K)
Printed in Japan
The mark
shows major revised points.
NEC Compound Semiconductor Devices 2003, 2004
NX8510UD Series
PACKAGE DIMENSIONS (UNIT: mm)
φ
4.75±0.1
φ
3.4±0.03
φ
2.92
+0.05
–0.17
4.045±0.05
BOTTOM VIEW
1
4
OPTICAL
REFERENCE
PLANE
3
2
12.0 MAX.
6.99±0.2
1.1±0.05
0.55±0.05
(1.1)
(2.55)
PIN CONNECTIONS
1 (CASE)
1.0
LD
4–
φ
0.3
4
2
6.5±0.5
PD
3
φ
1.43
P.C.D
φ
3.8
2
Preliminary Data Sheet PL10434EJ02V0DS
NX8510UD Series
ORDERING INFORMATION
NX8510UD xx
Wavelength code : Refer to
Table A
Package code
: Refer to
PACKAGE DIMENSIONS
ABSOLUTE MAXIMUM RATINGS
Parameter
Optical Output Power from Fiber
Forward Current of LD
Reverse Voltage of LD
Forward Current of PD
Reverse Voltage of PD
Operating Case Temperature
Storage Temperature
Lead Soldering Temperature
Symbol
P
f
I
F
V
R
I
F
V
R
T
C
T
stg
T
sld
Ratings
5.0
150
2.0
2.0
15
−20
to +85
−40
to +85
350 (3 sec.)
Unit
mW
mA
V
mA
V
°C
°C
°C
Preliminary Data Sheet PL10434EJ02V0DS
3
NX8510UD Series
ELECTRO-OPTICAL CHARACTERISTICS (T
C
=
−20
to +85°C, unless otherwise specified)
Parameter
Operating Voltage
Threshold Current
Symbol
V
op
I
th
Conditions
CW, P
f
= 2.0 mW
CW, T
C
= 25°C
CW
Optical Output Power from Fiber
Differential Efficiency
P
f
CW, T
C
= 25°C, I
F
= I
th
+ 20 mA
CW, P
f
= 2.0 mW, T
C
= 25°C
CW, P
f
= 2.0 mW
Peak Emission Wavelength
λ
p
CW, P
f
= 2.0 mW, RMS (−20 dB),
T
C
= 35°C
Temperature Dependence of Peak
Emission Wavelength
Side Mode Suppression Ratio
Rise Time
Fall Time
Monitor Current
Monitor Dark Current
SMSR
t
r
t
f
I
m
I
D
CW, P
f
= 2.0 mW
I
b
= I
th,
20-80%, P
f
= 2.0 mW
I
b
= I
th,
80-20%, P
f
= 2.0 mW
CW, V
R
= 1.5 V, P
f
= 1.0 mW
V
R
= 1.5 V, T
C
= 25°C
V
R
= 1.5 V
Tracking Error
*2
MIN.
TYP.
1.1
10
MAX.
1.6
20
50
Unit
V
mA
2.0
0.07
0.04
λ
p
−2
λ
p
*1
mW
W/A
η
d
0.1
λ
p
+2
nm
∆
λ/
∆
T
CW
0.08
0.10
0.12
nm/°C
30
40
100
150
dB
ps
ps
100
500
0.1
10
1 000
10
100
1.0
1.0
µ
A
nA
γ
−
CW, I
m
= const. (@ P
f
= 2.0 mW)
With master pigtail
−1.0
−1.0
dB
dB
Connector Repeatability
*1
Available Available for CWDM Wavelengths based on ITU-T recommendations
λ
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
= 35°C)
Wavelength Code
47
49
51
53
55
57
59
61
MIN. (nm)
1 468
1 488
1 508
1 528
1 548
1 568
1 588
1 608
TYP. (nm)
1 470
1 490
1 510
1 530
1 550
1 570
1 590
1 610
MAX. (nm)
1 472
1 492
1 512
1 532
1 552
1 572
1 592
1 612
4
Preliminary Data Sheet PL10434EJ02V0DS
NX8510UD Series
*2
Tracking Error:
γ
P
f
(mW)
T
C
= 25˚C
2.0
T
C
= –20 to +85˚C
P
f
γ
= 10 log
P
f
2.0
[dB]
0
I
m
I
m
(mA)
Preliminary Data Sheet PL10434EJ02V0DS
5
