MUMBAI, India, Dec. 13 -- Intellectual Property India has published a patent application (202511084776 A) filed by Indian Institute Of Technology, Mandi, Himachal Pradesh, on Sept. 7. for 'system and method of characterization of high-speed data converters using asynchronous optical sampling.'
Inventor(s) include Dr. Srikanth Sugavanam; Dr. Hitesh Shrimali; and Abhishek Kharyal.
The application for the patent was published on Dec. 12, under issue no. 50/2025.
According to the abstract released by the Intellectual Property India: "Embodiments disclose a system and method for characterizing high-speed analog-to-digital converters (ADCs) using asynchronous optical sampling. The system (10) comprises a mode-locked laser source (101) that generates ultrashort optical pulses, which are fed into a Mach-Zehnder optical modulator (102). The electrical output of the ADC under test (103) modulates the intensity of the optical pulses via the RF input port (104) of the modulator. The modulated optical signal is converted into an electrical signal by a photodetector (106), which is sampled by a low-bandwidth data acquisition module (107). A signal processing and computing module (108) reconstructs the ADC output waveform based on the periodicity of the laser source (101). The system allows asynchronous, channel-wise sampling of the ADC outputs using an electronic switch (105), thereby enabling high-resolution performance evaluation of ADCs beyond 100 GHz bandwidth with low hardware cost and high immunity to timing jitter."
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