My SURF week-1 work...
To measure the transimpedence of the Broadband photodiode (D1002969-v8), using a New focus photodiode (1611) as reference. The amplitude modulated Jenne Laser (1.2mW) was used.
The steps involved in getting the transimpedence are as follows:
1) Frequency sweep range: 1MHz to 200 MHz.
2) Number of Points sampled in the range: 201
3) Type of sweep: Logarithmic
The Plots of transimpedence obtained are attached (results.pdf) . The results obtained for BBPD is consistent with the ones obtained before, but the same method and code gives a different transimpedence for 1611.
The transimpedence of NF 1611 was obtained to be around 4-5 V/A which is very much off-track compared to the one given in the datasheet (elog: 2906).
The transimpedence of Broadband photodiode (D1002969-v8) was around 1200 - 1300 V/A for most of the range, but the value started falling as the frequency approached 100 MHz. This result is consistent with DCC document: T1100467-v2.