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01:33 Nov 22, 2011
English to German translations [PRO] Tech/Engineering - Engineering (general) / optische Transmitter, Las
English term or phrase:calibration hook
Thus if P1 and P0 are known, everything with the exception of KMD, the optical coupling between the laser diode LD and the monitor diode MD, is known. The tracking loops generating I1 proportional to P1 and I0 proportional to P0 provide results that remain accurate with minimum data bursts. External passive networks are optimized for each transmitter optical subassembly type. Good optical transmitter output and monitor diode feedback can be achieved simultaneously using MDOUT as an observable signal. Built-in ***calibration hooks*** are also provided, such as the calibration pattern generator shown in Figure 2, to reduce manufacturing costs significantly. The automatic calibration further described in Figure 7 enables extinction ratio calibration without the need for an expensive sampling oscilloscope, which introduces additional error (due to offsets in the optical-to-electrical converter unit) in a production environment especially at very high extinction ratios as required by PON standards. Depending on the laser diode type and monitor diode type used, the required matching BW code may vary with temperature, though the number of codes required to cover any conventional temperature range will be quite limited and the temperature look-up table will not require changes for individual modules using the same type of laser diode and monitor diode. Further, and probably most importantly, calibration may be done at one temperature only and adequate performance achieved over a reasonably wide operating temperature range with no calibration over the temperature range being required on an individual transmitter optical subassembly basis. Accordingly the characterization of the optical transmitter subassembly type may be done on a one time basis and repeatedly used in production for calibration at a single temperature.
Leider ist der Calibration Pattern Generator weder mittels Texteintrag noch mittels Bezugzahl in Fig. 2 genannt. So sehr ich das Schaltbild auch absuche, ich finde einfach nichts.
Lässt sich daraus denn nicht auf irgendwas schließen?
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Reference comments
6 hrs peer agreement (net): +1
Reference: hook
Reference information: is the term you need - it is engineering slang for something prepared in advance - to which you can connect your software more easily. Here it is about software/data features built into the device to help the calibration.
The translation workplace 
