Characterization of high-speed.pdf (1.72 MB)
Characterization of high-speed balanced photodetectors
journal contribution
posted on 2023-06-09, 03:52 authored by Paul Struszewski, Mark Bieler, David Humphreys, Hualong Bao, Marco Peccianti, Alessia PasquaziWe report the characterization of a balanced ultrafast photodetector. For this purpose, we use a recently developed time-domain laser-based vector network analyzer (VNA) to determine the common-mode rejection ratio (CMRR) of the device under test. This includes the frequency-domain response above the single-mode frequency of the coaxial connector. Although the balanced photodetector has a nominal bandwidth of 43 GHz, it generates voltage pulses with frequency components up to 180 GHz. We obtain a CMRR of better than 30 dB up to 70 GHz and better than 20 dB up to 110 GHz. The laser-based measurements are compared with the measurements using a digital sampling oscilloscope and with the frequency-domain measurements using a conventional VNA. We obtain good agreement between the three techniques with the laser-based method providing the largest measurement bandwidth, although it also constitutes the most complicated characterization setup.
Funding
UK Quantum Technology Hub for Sensors and Metrology; G1511; EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCIL; EP/M013294/1
History
Publication status
- Published
File Version
- Accepted version
Journal
IEEE Transactions on Instrumentation and MeasurementISSN
0018-9456Publisher
Institute of Electrical and Electronics EngineersExternal DOI
Issue
6Volume
66Page range
1613-1620Department affiliated with
- Physics and Astronomy Publications
Research groups affiliated with
- Atomic, Molecular and Optical Physics Research Group Publications
- Sussex Centre for Quantum Technologies Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2016-11-03First Open Access (FOA) Date
2017-03-30First Compliant Deposit (FCD) Date
2016-11-03Usage metrics
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