Noise characterization of mid-infrared supercontinuum generated through gain-switched pumping

Activity: Talks and presentationsConference presentations


Optical coherence tomography systems would greatly benefit from stable mid-infrared supercontinuum sources, which can allow deeper sample penetration compared to near-infrared sources, making them highly desirable for nondestructive testing applications. Here we firstly present the development of a flexible and fully-fiberized pump consisting of a gain-switched 1950 nm semiconductor laser amplified to an average power of 1.3 W, at 1 MHz repetition rate with 11 ps pulse duration. We utilize this pump to initiate nonlinear soliton dynamics in ZBLAN fiber, subsequently generating a broad supercontinuum extending beyond 4 μm. Spectrally-resolved pulse-to-pulse energy variations are recorded for various pumping configurations in order to quantify and optimize spectral broadening and stability, which are essential factors to maximizing speed and signal-to-noise ratio in the intended application.
Period27 Jan 20243 Feb 2024
Event titleSPIE Photonics West LASE 2024
Event typeConference
LocationSan Francisco, United States, CaliforniaShow on map