Thats a unique idea.You should consider the following idea to enhance your idea so that it would impact uniquely:  report the characterization of a balanced ultrafast photodetector. For this purpose,  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.  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.  obtain good agreement beten the three techniques with the laser-based method providing the largest measurement bandwidth, although it also constitutes the most complicated characterization setup.
['Paul Struszewski', 'Mark Bieler', 'David A. Humphreys', 'Hualong Bao', 'Marco Peccianti', 'Alessia Pasquazi']
I am writing a research paper on a idea Characterization of High-Speed Balanced Photodetectors
[{"from": "human", "value": "I am writing a research paper on a idea Characterization of High-Speed Balanced Photodetectors"}, {"from": "gpt", "value": "Thats a unique idea.You should consider the following idea to enhance your idea so that it would impact uniquely:  report the characterization of a balanced ultrafast photodetector. For this purpose,  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.  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.  obtain good agreement beten the three techniques with the laser-based method providing the largest measurement bandwidth, although it also constitutes the most complicated characterization setup."}]