DATA
SHEET
SINGLEMODE VCSEL
FLAT WINDOW TO CAN
SV3639-001
FEATURES:
Designed for low drive currents
between 1and 4 mA
Ultra Flat Window TO-46 style
package
Advanced Technology VCSEL
Chip
850 nm wavelength
Single Mode Lasing Operation
This is a new and advanced class of VCSELs from Advanced Optical
Components having dramatically reduced electrical power consumption,
reduced variation with temperature and excellent reliability. Advanced Optical
Components Single Mode VCSELS have been engineered to achieve a good
balance between threshold current and reliability. The 850nm single mode
VCSELs are available in all of the current Advanced Optical Components VCSEL
packaging configurations such as the TO46, and surface mount components.
Custom packaging designs are also available..
The SV3639 combines many of the desired features of an LED and the
advantages of a laser diode operating in a single longitudinal mode and a
single transverse mode. The VCSEL provides increased power output at low
drive currents. As the current increases above its threshold, the light intensity
increases proportionally.
Part Number Description
SV3639-001
High Speed Advanced Technology VCSEL Component
SV3639-001
SINGLEMODE VCSEL - FLAT WINDOW TO CAN
ABSOLUTE MAXIMUM RATINGS
Parameter
INVISIBLE LASER RADIATION
AVOID EXPOSURE TO BEAM
CLASS 3B LASER PRODUCT
30mW at 820-860 nm
PER IEC/EN 60825-1/A2.2001
AND 21 CFR 1040.10 AND 1040.11
EXCEPT FOR DEVIATIONS PURSUANT TO
LASER NOTICE NO.50 DATED 26 JULY 2001
Rating
-40oC to +85oC
0oC to +50oC
260oC, 10 seconds
2.5 V
4mA
Storage temperature
Operating temperature
Lead solder temperature
Power Supply Voltage
Continuous forward current
SEMICONDUCTOR LASER
AVOID EXPOSURE:
Invisible LASER
radiation is emitted from this aperture.
Advanced Optical Components
600 Millennium Drive,
Allen, TX 75013
PN55449
NOTICE:
Stresses greater than those listed under “Absolute
Maximum Ratings” may cause permanent damage to the
device. This is a stress rating only and functional operation of
the device at these or any other conditions above those
indicated in the operations section for extended periods of
time may affect reliability.
LASER RADIATION
AVOID EXPOSURE TO BEAM
CLASS 3B LASER PRODUCT
NOTICE:
The inherent design of this component causes it
to be sensitive to electrostatic discharge (ESD). To prevent
ESD-induced damage and/or degradation to equipment,
take normal ESD precautions when handling this product
SV3639-001
ELECTRO-OPTICAL CHARACTERISTICS
Parameter
Forward Voltage
Series Resis tance
Series Resistance Temperature
Coefficient
VCSEL reverse voltage
Threshold Current
Slope Efficiency
Slope Efficiency Temp erature
Coefficient
Power
Beam Divergence
Rise/Fall Time
Peak Wavelength
Side mode suppression Ratio
Wavelength temperature
coefficient
Change in wavelength with
current
Symbol
V
F
R
S
dR
S
/dT
V
R
I
TH
η
dη/dT
P
Θ
FWHM
T
R
,T
F
λ
SMSR
dλ/dT
dλ/dI
Units
V
Ω
%
/°C
V
mA
mW/mA
%/°C
mW
deg
ps
nm
dB
nm/°C
nm/mA
Min
75
Typ
1.9
110
-0.25
-10
0.25
0.35
-0.6
1.5
0.6
Max
2.5
175
Notes
T
A
=25°C, I
F
=4mA
3-4mA,T
A
=25°C
I
F
=4mA, 0-70°C
I
R
=10µA
T
A
=25°C, 1
T
A
=25°C
3-4mA, T
A
=0-70°C
I
F
=4mA
T
A
=25°C, I
F
=4mA
T=25C, I
F
=4mA
T
A
=25°C, I
F
=4mA
0-70°C
T
A
=25°C
0.7
11
150
835
15
30
0.06
0.25
16
865
ELECTRO-OPTICAL CHARACTERISTICS (Vcc=5V, T=25oC unless otherwise specified)
NOTES
1.
Minimum threshold occurs above room temperature. This
helps in reducing power variation over temperture at a
constant current
SV3639-001
SINGLEMODE VCSEL - FLAT WINDOW TO CAN
These single-mode parts have very small active volumes,
leading to several notable properties.
They are even more sensitive to ESD than are multi-mode
VCSELs or CD lasers.
They operate at currents typically below 5 mA and should
never be driven at much higher currents.
The spectral peak shifts significantly with current, but
shifts only slowly with ambient temperature. Operation at
a particular wavelength can be achieved by first setting
the current at an appropriate level, then adjusting the
temperature.
While they are designed to stay single mode over the
whole operating current range, at very high currents they
may become multi-mode, increasing the spectral width
and the beam divergence.
Despite their low operating currents, these VCSELs can
emit sufficient power to be categorized as Class 1M lasers,
and should be treated with the usual precautions.
SV3639-001
MOUNTING DIMENSIONS
MOUNTING DIMENSIONS (for reference only): All dimensions are in inches. [mm]
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