English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We present a thorough theoretical analysis and experimental study of the shotand electronic noise spectra of a balanced optical detector based on anoperational amplifier (OA) connected in a transimpedance scheme. We identifyand quantify the primary parameters responsible for the limitations of thecircuit, in particular the bandwidth and shot-to-electronic noise clearance. Wefind that the shot noise spectrum can be made consistent with the second orderButterworth filter, while the electronic noise grows linearly with the secondpower of the frequency. Good agreement between the theory and experiment isobserved, however the capacitances of the operational amplifier input and thephotodiodes appear significantly higher than those specified in manufacturers'datasheets. This observation is confirmed by independent tests.

Noise spectra in balanced optical detectors based on transimpedance amplifiers