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Tech/Engineering - Engineering (general) / optische Transmitter, Lasertreiber | | English term or phrase: track | | Optical transmitters typically each include a monitor diode which receives a part of the light emitted by the transmitting diode to provide a measure of the optical power levels of the transmitting laser diode. However such monitor diodes and their associated circuitry do not have the high frequency capabilities of the transmitting diode, and accordingly, have real limitations with respect to what the monitor diode can accomplish. In particular, the monitor diode can easily sense the average power (P1+P0)/2 as very little bandwidth is needed to do so, but in general cannot sense either P1 or P0 unless sufficient consecutive identical digits (CID) are first applied which represents the transmission of all ones for sensing P1 and transmission of all zeroes for sensing P0. While this can be done, it has the disadvantage of requiring the same to be done, typically periodically, so that changes in temperature do not let either value get out of control. This of course provides an undesired interruption of data transmission. Alternatively, a CID detector may be implemented which enables the sensing for P1 or P0 when a sufficient number of CIDs are detected in the data stream. This is costly to implement and may result in too few updates to reliably ***track*** the laser behavior. The timely occurrence of such a CID data stream is non deterministic due to the random nature of the data being transmitted. Systems which require periodic occurrence of CIDs are not practical. |
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| | German translation:verfolgen | Explanation:
heißt das... ;-) |
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 Oliver_F
Local time: 05:57
| Grading comment Es ist für mich schwierig zu sagen, welche Antwort in diesem konkreten Fall die beste ist. Ich habe mich für meine Übersetzung schließlich doch für die wortwörtliche Sicherheitsvariante entschieden. Herzlichen Dank an alle!
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The translation workplace 
