Sumitomo Electric Industries, Ltd.
Part No.:
SLT4460-xx/RH2-S460 Series
Document No.:
HUW0724132-01B
Date of issue:
May 7, 2009
Technical Specification
of
1.625µm MQW-DFB Laser Diode Module
for Supervisory Channel up to 622Mb/s transmission
SLT4460-xx/RH2-S460 Series
RoHS Compliant
Page 1 of 7
Sumitomo Electric Industries, Ltd.
Part No.:
SLT4460-xx/RH2-S460 Series
Document No.:
HUW0724132-01B
Date of issue:
May 7, 2009
1. General
SLT4460-xx/RH2-S460 Series are 1.625µm InGaAsP/InP MQW-DFB laser diode modules designed
for fiber optic communication systems. These modules are ideally suitable
for long reach and intermediate reach of up to 622Mb/s transmission applications.
A laser diode is mounted into a coaxial package integrated with an InGaAs monitor PD and a single
mode fiber pigtail.
Especially SLT4460-xx/RH2-S460 Series have a single stage isolator integrated inside. The lead
content of this isolator is less than 1000ppm.
2. Package dimension and pin assignment
(See attached appendix.)
3. Absolute maximum ratings
Parameter
Storage temperature
Operating case temperature
Fiber output power
Forward current (LD)
Reverse voltage (LD)
Reverse voltage (PD)
Reverse current (PD)
Soldering temperature (<10s)
Symbol Ratings
Tstg
-40~+85
Top
-20~+70
Pf
2
IfL
150
VrL
2
VrP
15
IrP
2
Stemp
260
Unit
°C
°C
mW
mA
V
V
mA
°C
Page 2 of 7
Sumitomo Electric Industries, Ltd.
Part No.:
SLT4460-xx/RH2-S460 Series
Document No.:
HUW0724132-01B
Date of issue:
May 7, 2009
4. Electrical and optical characteristics (Pf=2mW, Tc=25°C, unless otherwise noted.)
Parameter
Threshold current
Optical output power
Operating voltage
Slope efficiency
Symbol
Condition
Ith CW
CW, Tc=-20~+70°C
Pf CW, If=Ith+20mA
CW, If=Ith+20mA, Tc=-20~+70°C
Vf CW, Tc=-20~+70°C
Se CW, Average(Ith to Ith+20mA)
Min.
—
—
1.0
0.5
—
0.050
Typ.
10
—
2
—
—
—
—
1625
—
—
—
0.05
0.10
—
—
1
—
Max.
Unit
20
mA
50
2.5
mW
4.0
1.7
V
0.125 mW/mA
0.200
1630
1637
—
1.0
0.10
0.15
—
1500
10
10
nm
dB
dB
ns
ns
dB
µA
nA
pF
CW, Average(Ith to Ith+20mA)
0.025
Tc=-20~+70°C
Peak wavelength
λp
CW
1620
CW, Tc=-20~+70°C
1613
Side-mode suppression ratio SSR CW, Tc=-20~+70°C
30
Tracking error
ΔPf
Im hold(@Pf=2mW(25°C)), CW
-1.0
Tc=-20~+70°C
Rise time
tr
Ib=Ith, 20-80%, Tc=-20~+70°C
—
Fall time
tf
Ib=Ith, 80-20%, Tc=-20~+70°C
—
Extinction ratio
Er 10log(2mW/Pf(Ith)), Tc=-20~+70°C
10
Monitor current
Im CW, VrP=5V, Tc=-20~+70°C
50
Monitor dark current
Id VrP=5V
—
Monitor capacitance
C VrP=5V, f=1MHz
—
5. Fiber pigtail specification
Parameter
Type
Mode field diameter@1310nm
Cladding diameter
Outer jacket diameter
Bending radius
Min.
Typ.
Max.
Single Mode
8.5
9.5
10.5
122
125
128
0.8
0.9
1.0
30
—
—
Unit
—
µm
µm
mm
mm
Page 3 of 7
Sumitomo Electric Industries, Ltd.
Part No.:
SLT4460-xx/RH2-S460 Series
Document No.:
HUW0724132-01B
Date of issue:
May 7, 2009
6. Ordering Information
Part number
SLT4460-CN/RH2-S460
SLT4460-CP/RH2-S460
SLT4460-CS/RH2-S460
SLT4460-XN/RH2-S460
SLT4460-XP/RH2-S460
SLT4460-XS/RH2-S460
No connector
SC/PC
Type A
Single stage isolator
Pin assignment
Optical isolator
Connector type
Flange type
(hole pitch)
Flangeless
Vertical (12mm)
Horizontal (12.7mm)
Flangeless
Vertical (12mm)
Horizontal (12.7mm)
7. Precaution
(1) Radiation emitted by laser devices can be dangerous to the eyes. Avoid eye or skin exposure to
direct or scattered radiation.
(2) The modules should be handled in the same manner as ordinary semiconductor devices to
prevent the electro-static damages. For safe keeping and carrying, the modules should be
packaged with ESD proof material. To assemble the modules on PCB, the workbench, the
soldering iron and the human body should be grounded.
(3) The stress to the fiber pigtail may cause the damage on the performance. The fiber pigtail may
snap off by dropping the module.
(4) Please pay special attention to the atmosphere condition because the dew on the module may
cause some electrical damages.
(5) Under such a strong vibration environment as in automobile, the performance and reliability are
not guaranteed.
8. RoHS Compliancy
On January 27, 2003, the European Parliament and the Council of the European Union issued the
directive 2002/95/EC on the restriction of the use of certain hazardous substances in electrical and
electronic equipment (RoHS).
Member States shall ensure that, from July 1, 2006, new electrical and electronic equipment put on
the market does not contain lead, mercury, cadmium, hexavalent chromium, polybrominated
biphenyls (PBB) or polybrominated diphenyl ethers (PBDE).
Applications listed in the Annex are exempted.
This product is compliant with RoHS 6/6 directive with exemptions “Lead in glass of cathode ray
tubes, electronic components and fluorescent tubes” and “Lead as an alloying element in steel
containing up to 0.35 % lead by weight, aluminium containing up to 0.4 % lead by weight and as a
copper alloy containing up to 4 % lead by weight”.
Page 4 of 7
Sumitomo Electric Industries, Ltd.
Part No.:
SLT4460-xx/RH2-S460 Series
Document No.:
HUW0724132-01B
Date of issue:
May 7, 2009
9. Appendix
Pin No.
Part No.: SLT446
-
/
-
S460
Code
0
6
Pin assignment
Type A
Type C
(RH2 or Customize Code)
1
2
3
4
Pin function
for type A
LD anode (CASE)
LD cathode
PD cathode
PD anode
Pin function
for type C
(CASE)
LD cathode
PD anode
LD anode/
PD cathode
Code
C
D
L
M
Q
X
Connector type
SC/PC
FC/PC
LC/PC
MU/PC
SC/Angled PC
No connector
Code
N
P
S
Flange type
Flangeless
Vertical (12.0mm)
Horizontal (12.7mm)
Pin No.
1
2
3
4
Connector type
Flange type
φ
(5.7)
4-φ0.45
φ
6.5
Pin assignment
φ 0.9
P.C.D. 2±0.5
φ6.5
1
4
3
2
40 max
770 min
SC/PC connector (*1)
30±1
Flangeless
12 min.
Type A
4
3
1
2
33 max
770 min
FC/PC connector (*1)
φ
7.2
2-φ2.2
Type C
18
±
0.2
33 max
770 min
LC/PC connector (*1)
1
φ4.5
12
4
3
2
33 max
770 min
MU/PC connector (*1)
8deg polished
1.0
Vertical flange
30±
1
2-φ2.4
2.5
11 min.
3
Type A
4
1
2
Type C
4
1
40 max
17±0.3
8±0.3
12.7
770 min
SC/Angled PC connector (*1)
3
2
Type A
700 min
No connector
30±
1
Horizontal flange
8±0.
3
12 min.
3
2
4
1
4
Unit: mm
Tolerance:
±0.1mm,
unless otherwise noted.
Note: *1. IEC and JIS compliant. Detailed design not specified in the IEC and
JIS standards is a subject to change without notice.
Type C
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