MUMBAI, India, July 24 -- Intellectual Property India has published a patent application (202541063730 A) filed by Indian Institute Of Technology Madras Iit Madras on July 03, 2025, for Silicon Photonics-Based Quantum Random Number (qrn) Generation System And Method For Generating Qrns.
Inventors include Bijoy Krishna Das; Ankan Gayen; Shamsul Hassan; Nagarajan Nallusamy; Pawan Kumar Pandit; Kumar Piyush; Kavimani A; Sarad Subhra Bhakat; and Arnab Goswami.
The application for the patent was published on July 17, 2026, under issue no. 29/2026.
Abstract: The present disclosure discloses a silicon photonics-based quantum random number (QRN) generation system (100) and a method for generating QRNs. The system (100) comprises a source unit (102) configured to generate an input optical signal and a silicon photonics chip (104) comprising a programmable photonic integrated circuit (PPIC) (106) configured to receive the input optical signal. The PPIC (106) comprises an optical splitter (106A), at least one programmable power splitter (106B) configured to adjust optical power distribution for balanced homodyne detection to suppress classical noise and enhance quantum noise, and a balanced homodyne detector (BHD) (106C) configured to perform differential detection for generating quantum noise signals. An output processing circuitry (OPC) (108) comprising a transimpedance amplifier (108A), an analog-to-digital converter (108B), and a field programmable gate array unit (108C), receives the quantum noise signals from the BHD (106C) and generates the QRNs. [Figure 1]
Disclaimer: Curated by HT Syndication.
