Patent ID: 7300211

Claim:
A device for sending or receiving optical signals comprising: an opto-electrical transducer, an associated glass fiber, and a common support, on which said opto-electrical transducer and associated glass fiber are arranged; wherein the support is a circuit board ( 1 ) comprising different multiple layers of insulation material and intermediate layers of metal, with an integral recess ( 2 ) formed therein containing an opening ( 3 ) and a bottom ( 4 ) on which conducting tracks ( 10 ) are installed and at least some of the conducting tracks are impedance-matched, the transducer is entirely located in the recess ( 2 ) without projecting from the recess, and is connected to the conducting tracks ( 10 ), at least some of the conducting tracks ( 10 ) protrude laterally from the recess ( 2 ) to the surrounding edge areas of the circuit board ( 1 ), where at least some of said tracks are connected to impedance-matched conductors ( 11 ) that extend to a common surface on the inside of the circuit board ( 1 ) where said tracks respectively end on a contact surface ( 12 ), the glass fiber ( 8 ) exits from the recess ( 2 ) through an opening in the circuit board ( 1 ), an electrically active shield is installed around the circuit board( 1 ); and said impedance-matched conductors ( 11 ) are respectively designed as coaxial lines with an internal conductor ( 14 ) that is connected in a reflection-free manner to the impedance-matched conducting tracks ( 10 ), and with a plurality of feedthrough contacts ( 15 ) that are arranged concentrically around the internal conductor ( 14 ) and have clearance with respect to each other, which are interconnected to conduct electricity at least at one point, and are connected to ground.