Circuit: 20MHz VCSEL 3mW LASER TEST CIRCUIT __ Circuit designed by David A. Johnson, P.E.

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20MHz VCSEL 3mW LASER TEST CIRCUIT - June 17, 2000

This circuit takes advantage of some new vertical cavity surface emitting lasers (VCSEL) that don’t require light output control circuits. The circuit shows how to drive the device from a single high speed CMOS IC. The circuit can easily be modified to transmit signals from kilohertz to about 50MHz.

Click on Drawing Below to view PDF version of Schematic

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