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PDF HFE419x-521 Data sheet ( Hoja de datos )
| Número de pieza | HFE419x-521 | |
| Descripción | Fiber Optic LAN Components | |
| Fabricantes | Honeywell | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de HFE419x-521 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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Fiber Optic LAN Components
High Speed VCSEL 2.5Gbps
HFE4090-321
FEATURES
• Designed for drive currents
between 5 and 15 mA
• Optimized for low dependence
of electrical properties over
www.DataSheet4U.cotemmperature
• High speed ≥1 GHz
LASER RADIATION
AVOID EXPOSURE TO BEAM
CLASS 3B LASER PRODUCT
The HFE4090-321 is a high-performance 850 nm VCSEL (Vertical Cavity
Surface-Emitting Laser) packaged for high-speed data communications.
The HFE4090-321 is a high radiance VCSEL 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 HFE4090-321 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 HFE4090-321 is designed to interface with 50/125 and 62.5/125 µm
multimode fiber. It produces circularly symmetric, non-astigmatic, narrow
divergence beams that, with appropriate lensing, fiber couple all of the emitter
power.
Honeywell
www.honeywell.com/sensing/VCSEL
Courtesy of Steven Engineering, Inc. ! 230 Ryan Way, South San Francisco, CA 94080-6370 ! Main Office: (650) 588-9200 ! Outside Local Area: (800) 258-9200 ! www.stevenengineering.com
1 page  
Fiber Optic LAN Components
High Speed VCSEL 2.5Gbps
HFE4090-341
FEATURES
• Designed for drive currents
between 3 and 12 mA average
• Optimized for low dependence
of electrical properties over
www.DataSheet4U.cotemmperature
• High speed ≥1 GHz
LASER RADIATION
AVOID EXPOSURE TO BEAM
CLASS 3B LASER PRODUCT
The HFE4090-341 is a high-performance 850 nm VCSEL (Vertical Cavity
Surface-Emitting Laser) packaged for high-speed data communications.
The HFE4090-341 is a high radiance VCSEL 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 HFE4090-341 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 HFE4090-341 is designed to interface with 50/125 and 62.5/125 µm
multimode fiber. It produces circularly symmetric, non-astigmatic, narrow
divergence beams that, with appropriate lensing, fiber couple all of the emitter
power.
Honeywell
www.honeywell.com/VCSEL
Courtesy of Steven Engineering, Inc. ! 230 Ryan Way, South San Francisco, CA 94080-6370 ! Main Office: (650) 588-9200 ! Outside Local Area: (800) 258-9200 ! www.stevenengineering.com
5 Page 
Fiber Optic Components
High Speed VCSEL 2.5Gbps VCSEL
HFE409x-341
Notes:
1. Operating power is set by the peak operating
current IPEAK=IBIAS+IMODULATION.
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 0.8 mW. Slope efficiency is intentionally
lowered to the values shown by optical attenuation.
www.DataSheet4U4.c.omRise and fall times are sensitive to drive electronics
5. Beam divergence is defined as the total included angle
between the 1/e2 intensity points. Beam divergence
varies between 15deg and 30deg depending upon
operating conditions. 30deg is expected to be worst case
divergence. It is recommended that the optics be design
for an NA of 0.3.
6. To safeguard the VCSEL from current spike damage,
short the VCSEL anode and cathode to each other
during photodiode BVR verification testing.
Additionally to safeguard the PIN photodiode, limit the
photodiode reverse voltage in accordance with the
absolute maximum rating.
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.
Typica l IO P, PO P
ITH ≈ = IMIN[1.1× 10-4(T-TM IN)2+ 1]
T M IN , IM IN
ITH Curre nt
Emission Intensity vs. Wavelength: Typical
10 mA spectrum comprises multiple lines corresponding to
multiple transverse modes.
Te m pe ra ture
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.
FW HM of envelope
typica lly < 0.5 nm
W a ve le ngth
DANGER
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.
For application help: call 1-800-537-6945
Honeywell • 3
www.honeywell.com/VCSEL
Courtesy of Steven Engineering, Inc. ! 230 Ryan Way, South San Francisco, CA 94080-6370 ! Main Office: (650) 588-9200 ! Outside Local Area: (800) 258-9200 ! www.stevenengineering.com
11 Page | ||
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| PDF Descargar | [ Datasheet HFE419x-521.PDF ] | |
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