SAMOP 2023 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 10: Photonics I

Q 10.6: Vortrag

Montag, 6. März 2023, 18:30–18:45, E001

Jitter comparison of gain-switched diodes — •Simon Angstenberger, Tobias Steinle, and Harald Giessen — 4th Physics Institute and Research Center SCoPE, University of Stuttgart, Germany

Gain-switched diodes are a cost-efficient and widely used approach to seed flexible amplifier chains. However, the timing jitter of the gain-switching process limits the implementation in applications with critical timing on the tens of picosecond scale. We compare different diode concepts, namely a Fabry-Perot (FP) laser diode and a distributed feedback (DFB) laser diode. We find that the timing jitter for the FP diode is significantly lower, when driven with the same electronic driver. Furthermore, we investigate the influence of optical feedback by means of a fiber Bragg grating (FBG) on the jitter performance. Eventually, a comparison is made of the obtained values to a fiber laser for reference.