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FEATURES: 

Designed for drive currents

between 1 and 5 mA

Optimized for low dependence

of electrical properties over

temperature

High speed 

≥1 GHz

Two different laser/ photodiode

polarities

Attenuating coating also

available

Packaged with a photodetector

850NM SINGLE MODE VCSEL

TO-46 PACKAGE

HFE4093-332

DATA 

SHEET

The HFE409x-332 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, and is designed for ease of use by the module

designer and manufacturer. The power monitor diode can be used with

appropriate feedback control circuitry to set a maximum power level for each

VCSEL, simplifying design for high data rate communication and eye safety.

The HFE409x-332 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 HFE409x-332 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 HFE409x-332 is designed to interface with single mode or 50/125 and

62.5/125 

µm multimode fiber. HFE409x-332 produces a circularly symmetric,

non-astigmatic, narrow divergence beams that, with appropriate lensing, fiber

couple all of the emitter power.

Part Number

Description

HFE4093-332

Unattenuated VCSEL with Back Monitor Photodiode - VCSEL Anode Common