Kumar, PawanSaravi, SinaPertsch, ThomasSetzpfandt, FrankSukhorukov, Andrey A.2025-06-292025-06-299781728104690http://www.scopus.com/inward/record.url?scp=85074635885&partnerID=8YFLogxKhttps://hdl.handle.net/1885/733765405Quantum spectroscopy based on nonlinear interferometers attracts increasing attention due to its unique practical advantages [1]. By tailoring spontaneous parametric down conversion (SPDC) for generation of frequency-correlated photons and their nonlocal quantum interference, it becomes possible to perform sensing and imaging across broad spectral ranges through simple detection of paired photons in the visible [2,3]. It was recently demonstrated that nonlinear integrated waveguides can improve the performance of quantum spectroscopy [4]. However, while fabrication of integrated circuits with multiple waveguides is well established, their applications for quantum spectroscopy remain largely undeveloped.enPublisher Copyright: © 2019 IEEE.201910.1109/CLEOE-EQEC.2019.887161085074635885