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Updated: May 29, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
Published on: May 30, 2014
Unifying intensity noise and second-order coherence properties of amplified spontaneous emission sources
Martin Blazek1, Sébastien Hartmann, Andreas Molitor
1Institute of Applied Physics, Technische Universität Darmstadt, Darmstadt, Germany. martin.blazek@physik.tu‐darmstadt.de
Abstract:
We present joint investigations of relative intensity noise (RIN) and second-order coherence properties of amplified spontaneous emission (ASE) generated by a superluminescent diode. We introduce a generalized intensity noise description for ASE sources that contains the shot noise contribution but also accounts for first- and second-order coherence properties reflecting the process of light generation. We find excellent agreement between pump-current-dependent RIN values and this new description, with the perspective of particular interesting consequences for the realization of low-noise broadband emitters.
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