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
1A444
VCSEL Laser Diode
PRODUCT INFORMATION
Datacom, General Purpose
13457.11 1999-04-01
0.6
14
1.5
4.7
3.7
5.4
2.5
0.4
CASE
ANODE
CATHODE
BOTTOM VIEW
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
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
400
C/W
Thermal Resistance - No Heat Sink
Rthja
700
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 operates in
multiple transverse and single longi-
tudinal mode, ensuring stable cou-
pling of power and low noise.
Note 1: Fiber: 50/125 Graded Index, NA=0.2 or 62.5/125 Graded Index, NA=0.275.
WARNING: Laser Radiation, avoid exposure
to beam. Class 3B laser product, potential
eye hazard. Warning labels in each box.
The chip is isolated from the case.
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
TEST CONDITION
Fiber-Coupled Power
Pfiber
1.3 mW
I
F
=12mA
(Note 1)
Optical Power
Po
0.9
1.7
3.0
mW
I
F
=12mA
Slope Efficiency
200
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
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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