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Freiburg 2024 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 6: Solid State Quantum Optics I

Q 6.8: Vortrag

Montag, 11. März 2024, 12:45–13:00, HS 3118

Direct measurement of coherent light proportion from a laser source without spectral filtering — •Xi Jie Yeo1, Eva Ernst1, Alvin Leow1, Lijiong Shen1, Jaesuk Hwang1, Christian Kurtsiefer1,2, and Peng Kian Tan11Centre for Quantum Technologies, Singapore, Singapore — 2National University of Singapore, Singapore, Singapore

We present a method to measure the fraction of coherent light emitted by a practical laser source, using interferometric photon correlations; correlations between photoevents detected at the output ports of an asymmetric Mach-Zehnder interferometer. Using this technique, we characterize the fraction of coherent light emitted by a laser diode transiting across its lasing threshold.

Keywords: photon correlations; interferometry; coherence; photon statistics; lasing threshold

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