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OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Issue 3 05/2011
Page 2 of 3
Vertical Cavity Surface Emitting Laser in ST
Optical Sub-Assembly
OPV315AT, OPV315BT, OPV315YAT, OPV315YBT
Electrical/Optical Characteristics (at 25 °C unless otherwise specified)
SYMBOL
PARAMETER
MIN
TYP
MAX
UNITS
TEST CONDITION
PT50
Total Coupled Power OPV315AT, OPV315YAT
300
μW
IF
= 7 mA
50/125 μm Fiber OPV315BT, OPV315YBT
200
μW
IF
= 7 mA
ITH
Threshold Current
0.8
3.0
mA
Note1
VF
Forward Voltage
1.6
2.2
V
IF
= 7 mA
IR
Reverse Current
100
nA
VR = 5 V
RS
Series Resistance
20
55
ohms
Note 2
η
Slope Efficiency OPV315AT, OPV315YAT
30
μW/mA
Note 3
OPV315BT, OPV315YBT
20
μW/mA
Note 3
IRPD
Reverse Current, photodiode
35
nA
VR = 40 V
IM
Monitor Current
30
μΑ
IF
= 7 mA, V
R = 5 V
λ
Wavelength
840
860
nm
Δλ
Optical Bandwidth
0.85
nm
tr
Rise Time
90
ps
20% to 80%
NRI
Relative Intensity Noise -123 db/Hz
Δη/ΔΤ
Temp Coefficient of Slope Efficiency -0.5 %/°C 0° - 70° C
ΔlTH
Temp Variance of Threshold Current
±1.0
mA
0° - 70° C
Δλ/ΔT
Temp Coefficient of Wavelength
0.06
nm/°C
0° - 70° C
ΔVf/ΔT
Temperature Coefficient for VF
-2.5
mV/°C
tf
Fall Time
120
ps
80% to 20%
Linearity
0.00
Note 4
NOTES:
(1) Threshold Current is based on the two line intersection method specified in Telcordia GR-468-Core. Line 1 from 4 mA to 6 mA.
Line 2 from 0 mA to 0.5 mA.
(2) Series Resistance is the slope of the Voltage-Current line from 5 to 8 mA.
(3) Slope efficiency, is the slope of the best fit LI line from 5 mA to 8 mA using no larger than .25 mA test interval points.
Measured with a
50/125 μm fiber.
(4) Linearity—Using data points taken for slope efficiency above, data L/delta I shall be calculated for each adjacent pair of points.
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