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Issue 3

05/2011

Page 2 of 3

Vertical Cavity Surface Emitting Laser in ST

Optical Sub-Assembly

OPV315AT, OPV315BT, OPV315YAT, OPV315YBT

°C unless otherwise specified)

SYMBOL

PARAMETER

MIN

TYP

MAX

UNITS

TEST CONDITION

Total Coupled Power

OPV315AT, OPV315YAT

300

μW

50/125

μm Fiber

OPV315BT, OPV315YBT

200

μW

Threshold Current

0.8

3.0

mA

Note1

Forward Voltage

1.6

2.2

V

Reverse Current

100

nA

Series Resistance

20

55

ohms

Note 2

η

Slope Efficiency

OPV315AT, OPV315YAT

30

μW/mA Note 3

OPV315BT, OPV315YBT

20

μW/mA Note 3

Reverse Current, photodiode

35

nA

Monitor Current

30

µ

Α

λ

Wavelength

840

860

nm

Δλ

Optical Bandwidth

0.85

nm

Rise Time

90

ps

20% to 80%

Relative Intensity Noise

-123

db/Hz

Δη/ΔΤ

Temp Coefficient of Slope Efficiency

-0.5

%/°C

0° - 70° C

Δl

TH

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

-2.5

mV/°C

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.