HFE4093-342 Datasheet, PDF (1/6 Pages) Finisar Corporation. – 2.5Gbps, 850nm VCSEL, TO-46 Package

Finisar
Product Specification
2.5Gbps, 850nm VCSEL, TO-46 Package
HFE4093-342
PRODUCT FEATURES
• 850nm multi-mode oxide isolated
VCSEL
• Capable of modulation operation from
DC to 2.5Gbps
• TO-46 flat window metal can
component
• Designed for drive currents between 3-
15mA average
• Packaged with a back monitor
• Un-Attenuated window can
• Attenuated versions also available
These products are high-performance 850nm VCSELs (Vertical Cavity Surface-Emitting Lasers)
designed for high-speed data communications and packaged 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 the VCSEL. These combined features simplify design for high
data rate communication and eye safety.
These products are high radiance VCSELs 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.
These products are designed to be used with inexpensive silicon or gallium arsenide detectors,
but excellent performance can also be achieved with some indium gallium arsenide detectors
(see HFD3081-108 and HFD3081-203 product data sheets).
The low drive current requirement makes direct drive from PECL (Positive Emitter Coupled
Logic) or ECL (Emitter Coupled Logic) gates possible and eases driver design.
These are designed to interface with 50/125 and 62.5/125mm multi-mode fiber. They produce
circularly symmetric, non-astigmatic, narrow divergence beams that, with appropriate lensing,
fiber couple all of the emitter power
PRODUCT SELECTION
Part Number
Description
HFE4093-342
Un-Attenuated TO-46 component, VCSEL with Back Monitor
Photodiode, Anode of VCSEL common with Photodiode Cathode
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