Fiber Optic LAN Components
HFE419x-521
LC Connectorized High Speed VCSEL 2.5 Gbps
FEATURES
•
Designed for small form factor
transceivers
•
Prealigned connector sleeve that
is compatible with the LC
standard (LC is a trademark of
Lucent Technologies)
•
Designed for drive currents
•
Optimized for low dependence
of electrical properties over
temperature
•
High speed
≥1
GHz
•
Two different laser/
photodiode polarities
•
Attenuating coating
•
Packaged with a photodetector
The HFE419x-521 is a high-performance 850 nm VCSEL (Vertical Cavity
Surface-Emitting Laser) packaged for high-speed data communications. This
product combines all the performance advantages of the VCSEL with a custom
designed power monitor diode. The power monitor diode can be used with
appropriate feedback control circuitry to set a maximum power level for each
VCSEL. In addition, built-in power attenuation reduces the effective slope
efficiency. These combined features simplify design for high data rate
communication and eye safety.
Packaged in a fiber receptacle sleeve, this high radiance VCSEL is designed to
convert electrical current into optical power that can be used in fiber optic
communications and other applications. As the current varies above threshold,
the light intensity increases proportionally.
The HFE419x-521 is designed to be used with inexpensive silicon or gallium
arsenide detectors, but excellent performance can also be achieved with some
indium gallium arsenide detectors.
The low drive current requirement makes direct drive from PECL (Positive
Emitter Coupled Logic) or EML (Emitter Coupled Logic) gates possible and
eases driver design.
The HFE419x-521 is a prealigned and focused fiber optic transmitter designed
to interface with 50/125 and 62.5/125
µm
multimode fiber.
LASER RADIATION
AVOID EXPOSURE TO BEAM
CLASS 3B LASER PRODUCT
Honeywell
www.honeywell.com/sensing/VCSEL
Fiber Optic LAN Components
LC Connectorized VCSEL 2.5Gbps
ABSOLUTE MAXIMUM RATINGS
Parameter
Storage Temperature
Operating Temperature
Lead Solder Temperature
Continuous Optical Output Power (Any Current)
Laser Diode Reverse Voltage (I
R
=10
µA)
Laser Continuous Forward Current, Heat-Sinked
PIN Photodiode Forward Current
Rating
-40 to +85°C
0 to +70°C
260°C, 10 sec.
5 mW
5V
15 mA
10 mA
HFE419x-521
NOTICE
Stresses greater than those listed under
“Absolute Maximum Ratings” may cause
permanent damage to the device. This is
a stress rating only and functional
operation of the device at these or any
other conditions above those indicated in
the operations section for extended
periods of time may affect reliability.
ELECTRO-OPTICAL CHARACTERISTICS (T
A
=25
o
C unless otherwise stated)
VCSEL Parameters
Peak Fiber Coupled Optical
Power (See threshold current
and slope efficiency which
control power output)
Threshold Current
Threshold Current Temperature
Variation
Slope Efficiency
Slope Efficiency Temperature
Variation
Peak Wavelength
λ
P
Temp Coefficient
Spectral Bandwidth
Laser Forward Voltage
Laser Reverse Voltage
Rise and Fall Time
Relative Intensity Noise
Series Resistance
Series Resistance Temperature
Coefficient
Photodiode Parameters
Monitor Current
Monitor Current
Temperature Variation
Dark Current
PD Reverse Voltage
PD Capacitance
Test Condition
I
F
=9 mA Peak
50/125
µm
fiber
NA=0.20
Symbol
P
OC
Min.
Typ.
350
Max.
Units
µW
Notes
1
I
TH
T
A
= 0 C to 70 C
P
OC
=0.5 mW
T
A
= 0
o
C to 70
o
C
I
F
=9 mA
I
F
=9 mA
I
F
=9 mA, FWHM
I
F
=9 mA
I
R
=10
µA
Bias Above Threshold
(20%-80%)
1 GHz BW
I
F
=9 mA
I
F
=9 mA, 0
o
C to 70
o
C
o
o
∆
I
TH
η
∆η/∆T
λ
P
∆λ
P
/∆T
∆λ
V
F
BVR
LD
t
R
t
F
RIN
R
S
dR
s
/dT
1
-1.5
0.028
3
5
1.5
0.14
mA
mA
mW/mA
PPM/
o
C
2
3
-6000
830
850
0.06
0.85
1.8
-10
2.2
130
150
-122
40
860
nm
nm/
o
C
nm
V
V
ps
dB/Hz
Ohms
PPM/
o
C
4
18
-130
25
-3000
Test Condition
P
OC
=0.5 mW
P
OC
=0.5 mW
Po=0 mW, V
R
=3 V
Po=0 mW, I
R
=10
µA
V
R
=0 V, Freq=1 MHz
V
R
=3 V, Freq=1 MHz
Symbol
I
PD
∆I
PD
/∆T
I
D
BVR
PD
C
Min.
Typ.
0.42
0.2
Max.
Units
mA
%/
o
C
nA
V
pF
Notes
20
30
115
75
40
100
55
5
2
Honeywell
•
www.honeywell.com/sensing/VCSEL
For application help: call 1-800-537-6945
Fiber Optic Components
LC Connectorized VCSEL 2.5 Gbps
Notes:
1. Operating power is set by the peak operating current
I
PEAK
=I
BIAS
+I
MODULATION
.
2. Operation at temperatures outside the specified range may
result in the threshold current exceeding the maximums
defined in the electro-optical characteristics table.
3.
Slope efficiency is defined as
∆Po/∆IF
at a total power output
of 0.5 mW. Slope efficiency is intentionally lowered to the
values shown by optical attenuation.
HFE419x-521
4. Rise and fall times are sensitive to drive electronics.
5. To safeguard the VCSEL from current spike damage, short the
VCSEL anode and cathode to each other during photodiode BVR
verification testing.
TYPICAL PERFORMANCE CURVES
Emitted Power vs. Current:
Power varies
approximately linearly with current above threshold.
Threshold Current vs. Temperature:
Threshold
current varies parabolically with temperature; thus it can
be nearly constant for a limited temperature range.
Threshold Current
Emitted Power
Typica l I
O P
, P
O P
I
TH
≈
=
I
M IN
[1.1× 10
-4
(T-T
M IN
)
2
+ 1]
T
M IN
, I
M IN
I
TH
Curre nt
Te m pe ra ture
Emission Intensity vs. Wavelength:
Typical
10 mA spectrum comprises multiple lines corresponding to
multiple transverse modes.
NOTICE
The inherent design of this component causes it to be
sensitive to electrostatic discharge (ESD). To prevent ESD-
induced damage and/or degradation to equipment, take
normal ESD precautions when handling this product.
DANGER
Emission Intensity
FW HM of e nve lope
typica lly < 0.5 nm
The VCSEL is a class IIIb laser and should be treated as a
potential eye hazard. Due to the size of the component, the
applicable warning logotype, aperture label, and certification/
identification label cannot be placed on the component itself.
These labels can be found on the individual envelope in
which the VCSEL unit is packaged, or attached to the
shipping package.
W a ve le ngth
For application help: call 1-800-537-6945
www.honeywell.com/sensingVCSEL
Honeywell
•
3
Fiber Optic LAN Components
LC Connectorized VCSEL 2.5 Gbps
ORDER GUIDE
Catalog Listing
HFE4190-521
HFE4191-521
Description
Attenuated VCSEL with Back Monitor Photodiode -
VCSEL Anode Common
Attenuated VCSEL with Back Monitor Photodiode -
VCSEL Cathode Common
HFE419x-521
While we provide application assistance,
personally and through our literature, it is up to
the customer to determine the suitability of the
product in the application.
Specifications may change at any time without
notice. The information we supply is believed to
be accurate and reliable as of this printing.
However, we assume no responsibility for its use.
SALES AND SERVICE
Honeywell Sensing and Control serves its
customers through a worldwide network of sales
offices and distributors. For application
assistance, current specifications, pricing or name
of the nearest Authorized Distributor, contact a
nearby sales office or call:
TELEPHONE
1-800-367-6786 (USA)
1-800-737-3360 (Canada)
+49 (0) 89 35813310 (Germany)
+65-580-3312 (Singapore)
+44 (0) 118 981 9511 (UK)
MOUNTING DIMENSIONS
(for reference only): in./(mm)
PINOUT
HFE4190-521
Number
Function
1
K
LD
2
K
PD
, A
LD
3
A
PD
HFE4191-521
Number
Function
1
A
LD
2
K
LD
, A
PD
3
K
PD
PINOUT DEFINITIONS
A
LD
K
LD
VCSEL Anode
VCSEL Cathode
A
PD
K
PD
Monitor Photodiode Anode
Monitor Photodiode Cathode
FAX
1-972-470-4326 (Customer Response Center)
1-972-470-4549 (Fax on demand)
+49 (0) 89 3599971 (Germany)
+65 445 3033 (Singapore)
+44 (0) 118 981 7513 (UK)
INTERNET
http://www.honeywell.com/sensing/VCSEL
info.sc@honeywell.com
WARRANTY/REMEDY
Honeywell warrants goods of its manufacture as being free of defective materials
and faulty workmanship. Commencing with the date of shipment, Honeywell’s
warranty runs for 18 months. If warranted goods are returned to Honeywell during
that period of coverage, Honeywell will repair or replace without charge those items
it finds defective. The foregoing is Buyer’s sole remedy and is
in lieu of all other
warranties, expressed or implied, including those of merchantability and fitness
for a particular purpose.
7/23/01
Honeywell Inc.
11 West Spring Street
Freeport, Illinois 61032
Printed with Soy Ink
on 50% Recycled Paper
006694-1-EN IL50 GLO 797 Printed in USA
Honeywell Inc.
Optoelectronics Facility
830 East Arapaho Road
Richardson, Texas 75081
Honeywell Control
Systems Ltd.
Zodiac House
Calleva Park
Aldermaston, Berkshire
RG7 8HW England
Helping You Control Your World
