OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
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 1 of 3
Vertical Cavity Surface Emitting Laser in ST
Optical Sub-Assembly
OPV315AT, OPV315BT, OPV315YAT, OPV315YBT
Features:
• 850 nm VCSEL technology
• High thermal stability
• Up to 2.5 Gbps
• Recommended for multimode fiber applications
• Microbead lens
• Pin out and attenuation optio ns available on request
• Burned in for communication level reliability
• High optical coupling to MM fiber
• ST* style receptacle
Description:
The OPV315AT and OPV315BT are high performan ce 85 0nm VCSEL packaged for high speed communication
links. OPV315AT and OPV315BT combines all the perfo rmance advantages of a VCSEL with the addition of a
power monitor diode for precise control of optical po wer.
The OPV315YAT and OPV315YBT are identical electrically and optically and differ only in pin out. Refer to
mechanical drawings for details.
This product’s combinatio n of features including high speed, high output power and concentric beam makes it an
ideal transmitter for integration into all types of data communications equipment.
Applications:
• Fibre Channel
• Gigabit Ethernet
• ATM
• VSR (Very Short Reach)
• Intra-system links
• Optical backplane interconnects
RoHS
* - ST is a registered trademark of AT&T
Storage Temperature -40° C to +125° C
Operating Temperature 0° C to +85° C
Soldering Lead Temperature 260° C for 10 Seconds
Maximum Forward Peak Current, Continuous 12 mA
Maximum Reverse Voltage 5 V
Maximum Forward Current, pulsed (1µs P.W., 10% D.C.) 48mA
Absolute Maximum Ratings (TA = 25° C unless otherwise noted)
Additional laser safety information can be found on
the Optek website. See application #221.
Classification is not marked on the device due to
space limitations. See package outline for center-
line of optical radiance. Operating devices beyond
maximum rating may cause devices to exceed rated
classification
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
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 Cu rrent 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, VR = 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.
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
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 3 of 3
Vertical Cavity Surface Emitting Laser in ST
Optical Sub-Assembly
OPV315AT, OPV315BT, OPV315YAT, OPV315YBT
1 2 3
VCSEL PD
Pin Connection
1 VCSEL Anode
2 VCSEL Cathode/PD Anode
3 PD Cathode
OPV315AT, OPV315BT
Pin Connection
1 VCSEL Cathode
2 VCSEL Anode/PD Cathode
3 PD Anode
OPV315YAT, OPV315YBT
1 2 3
VCSEL PD
Normalized Output Power vs. Forward Current
Forward Current (mA)
Normalized Output Power
(7mA, 25 °C)
0.573 [14.55]
0.290 [7.37] M ax.
0.410 [10.41]
0.500 [12.70]
0.400 [10.15]
Min.
0.375-24 UN F-2A
0.075 [1.91]
0.100 D ia.
Nom.
12
0.375 [9.53]
3
Invisible Light emits from this surface
2x 2-56 UNC-2B
Ø.101 x .15 Deep
