PRODUCT INFORMATION
Europe: Tel (46) 8 58 02 45 00
Fax (46) 8 58 02 01 10
Tel (44) 1291 436180
Fax (44) 1291 436771
America: Tel 1-800-96MITEL Fax (613) 592-6909
Asia:
Tel (65) 293 5312
Fax (65) 293 8527
840
nm
2B454
VCSEL Laser Diode
PRODUCT INFORMATION
Datacom
13589.11 1999-04-01
0.6
14
1.5
4.7
3.7
0.4
5.47
2.5
VCSEL
Cathode
MONITOR
Anode
BOTTOM VIEW
MONITOR
Cathode
CASE NOT CONNECTED
VCSEL
Anode
TO-46 Package With Lens
All dimensions in mm
Optical and Electrical Characteristics
(25 C Case Temperature)
Thermal Characteristics
Absolute Maximum Ratings
PARAMETER
SYMBOL
LIMIT
Storage Temperature
Tstg
-55 to +125 C
Operating Temperature
(derating: Fig.4)
Top
0 to + 70 C
Electrical Power Dissipation
(derating: Fig.4)
Ptot
35 mW
Continuous Forward Current
(f 10 kHz)
I
F
15 mA
Peak Forward Current
(duty cycle 50%, f 1 MHz)
I
FRM
25 mA
VCSEL Reverse Voltage
V
R
1.5 V
Soldering Temperature
(2mm from the case for 10 sec)
Tsld
260 C
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
Thermal Resistance - Infinite Heat Sink
Rthjc
500
C/W
Thermal Resistance - No Heat Sink
Rthja
800
C/W
Temp. Coefficient -Wavelength
d /dTj
0.06
nm/ C
Optical Power - Variation 0 to 70 C
P
0.7
dB
Threshold Current - Variation 0 to 70 C
Ith
0.6
mA
This Vertical Cavity Surface-
Emitting Laser is designed for Fibre
Channel, Gigabit Ethernet, ATM and
general applications. It incorporates a
photodiode to monitor the optical
power and allow for feedback control.
For eye safety, the optical power is
attenuated to comply with IEC Laser
Class 1 requirements.
Note 1: Fiber: 50/125 Graded Index, NA=0.2 or 62.5/125 Graded Index, NA=0.275.
Note 2: Complies with laser Class 1 when operated at max 12 mA; Class 3 above 12 mA.
Class 1 Laser Product
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
TEST CONDITION
Fiber-Coupled Power
Pfiber
100
W
I
F
=12mA
(Note 1)
Optical Power
Po
400
W
I
F
=12mA
(Note 2)
Slope Efficiency
50
mW/A I
F
=12mA
(dPo/dI
F
)
Bandwidth
fc
2
GHz
I
F
=12mA
(3dBel)
Peak Wavelength
p
830
840
860
nm
I
F
=12mA
Spectral Width
(FWHM)
0.5
1
nm
I
F
=12mA
Forward Voltage
(Fig.5)
V
F
1.9
2.2
V
I
F
=12mA
Threshold Current
I
th
3.5
6
mA
Monitor Current
I
m
30
100
A
I
F
=12mA, V
R
>1V
Monitor Dark Current
I
d
30
nA
V
R
=5V
Relative Intensity Noise
RIN
-130
dB/Hz I
F
=12mA, f=1 GHz
PRODUCT INFORMATION
Europe: Tel (46) 8 58 02 45 00
Fax (46) 8 58 02 01 10
Tel (44) 1291 436180
Fax (44) 1291 436771
America: Tel 1-800-96MITEL Fax (613) 592-6909
Asia:
Tel (65) 293 5312
Fax (65) 293 8527
103326 1994-09-20
ST-2A
Package
Emitter or Detector in ST
Package
Mitel emitters and detectors can be
provided in this low-profile ST
package. The device is electrically
isolated from the ST
receptacle to
facilitate electrical connection. And
optimum fiber-coupled power or
responsivity is ensured by active
alignment against the fiber.
Mechanical Outline of Diode in ST-2A Housing
(ST is a registered trademark of AT&T)
All Dimensions in mm
*
The fiber-coupled power/responsivity is guaranteed to meet the LED/PIN data sheet - provided a ferrule meeting this specification is used.
Absolute Maximum Ratings
Thermal Characteristics
Note 2: Add Rthjc for emitter or detector to estimate the total thermal resistance.
Note 1: Temperature range can be extended to -55 to +125C on request.
12.7
MARKING SIDE
SLOT SIDE
9.5
7.89
2-56 UNC - 2B
max.0.5
min.12
20.1
3.9
5.4
7.6
3/8"-32 UNEF
0.006
FIBER
END
2.5
2.502
+0.01
0
+0
-0.004
MATING FERRULE
*
(not included)
PARAMETER
SYMBOL
LIMIT
Operating & Storage Temperature
Tstg, Top
-40 to + 85 C
ST-2A (Note 1)
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
Thermal Resistance - Infinite Heat Sink
Rthcc
40
C/W
(Note 2)
Thermal Resistance - No Heat Sink
Rthca
200
C/W
(Note 2)
Thermal Resistance - On PC Board
Rthca
80
C/W
(Note 2)
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