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2B454 Schematic ( PDF Datasheet ) - Mitel Networks

Teilenummer 2B454
Beschreibung VCSEL Laser Diode(Datacom)
Hersteller Mitel Networks
Logo Mitel Networks Logo 




Gesamt 10 Seiten
2B454 Datasheet, Funktion
PRODUCT INFORMATION
840nm
2B454
VCSEL Laser Diode
Datacom
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.
Ø4.7
Ø1.5
0.6
3.7
14
0.4
VCSEL Cathode
MONITOR Anode
VCSEL
Anode
MONITOR
Cathode
2.5
5.47
CASE NOT CONNECTED
BOTTOM VIEW
TO-46 Package With Lens
Class 1 Laser Product
13589.11 1999-04-01
Optical and Electrical Characteristics (25°C Case Temperature)
PARAMETER
Fiber-Coupled Power
Optical Power
SYMBOL MIN.
Pfiber 100
Po
TYP. MAX. UNIT
W
400 W
TEST CONDITION
IF =12mA (Note 1)
IF =12mA (Note 2)
Slope Efficiency
(dPo/dIF)
50 mW/A IF =12mA
Bandwidth
(3dBel )
fc 2 GHz IF =12mA
Peak Wavelength
Spectral Width (FWHM)
Forward Voltage (Fig.5)
p 830 840 860 nm IF =12mA
0.5 1 nm IF =12mA
VF 1.9 2.2 V IF =12mA
Threshold Current
Monitor Current
Monitor Dark Current
Ith 3.5 6 mA
Im 30 100
A IF =12mA, VR>1V
Id 30 nA VR=5V
Relative Intensity Noise RIN
-130 dB/Hz IF =12mA, f=1 GHz
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.
Absolute Maximum Ratings
PARAMETER
Storage Temperature
Operating Temperature (derating: Fig.4)
Electrical Power Dissipation (derating: Fig.4)
Continuous Forward Current (fр10 kHz)
Peak Forward Current (duty cycleр50%, fу1 MHz)
VCSEL Reverse Voltage
Soldering Temperature (2mm from the case for 10 sec)
SYMBOL
Tstg
Top
Ptot
IF
IFRM
VR
Tsld
LIMIT
-55 to +125ЊC
0 to +70ЊC
35 mW
15 mA
25 mA
1.5 V
260ЊC
Thermal Characteristics
PARAMETER
SYMBOL MIN. TYP.
Thermal Resistance - Infinite Heat Sink Rthjc
500
Thermal Resistance - No Heat Sink
Rthja
800
Temp. Coefficient -Wavelength
Optical Power - Variation 0 to 70ЊC
d/dTj
P
0.06
Ϯ0.7
Threshold Current - Variation 0 to 70ЊC Ith
Ϯ0.6
MAX.
UNIT
ЊC/W
ЊC/W
nm/ЊC
dB
mA
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






2B454 Datasheet, Funktion
PRODUCT INFORMATION
SMA-2A
Package
Emitter or Detector in SMA Package
Mitel emitters and detectors can be
provided in this low-profile SMA
package. The device is electrically
isolated from the SMA receptacle to
facilitate electrical connection. And
optimum fiber-coupled power or
responsivity is ensured by active
alignment against the fiber.
Absolute Maximum Ratings
PARAMETER
SYMBOL
Operating & Storage Temperature
SMA-2A (Note 1)
Tstg, Top
Note 1: Temperature range can be extended to -55° to +125°C on request.
LIMIT
-40 to +85ЊC
Thermal Characteristics
PARAMETER
SYMBOL MIN. TYP. MAX.
Thermal Resistance - Infinite Heat Sink Rthcc
(Note 2)
40
Thermal Resistance - No Heat Sink
(Note 2)
Rthca
200
Thermal Resistance - On PC Board
(Note 2)
Rthca
80
Note 2: Add Rthjc for emitter or detector to estimate the total thermal resistance.
UNIT
ЊC/W
ЊC/W
ЊC/W
2-56 UNC - 2B
max.0.5
Ø3.176
+0.01
0
FIBER
END
3.9
7.2 5.7
min.12
15.2
0.006
9.8 ± 0.03
MATING FERRULE*
(not included)
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.
Mechanical Outline of Diode in SMA-2A Housing
103325 1994-09-20
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

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