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Dynamic Intermode Beat Frequency Control of an Optical Frequency Comb Single Section Quantum Dot Laser by Dual-Cavity Optical Self-Injection

Stutz, Sebastian and Auth, Dominik and Weber, Christoph and Drzewietzki, Lukas and Nikiforov, Oleg and Rosales, Ricardo and Walther, Thomas and Lester, Luke F. and Breuer, Stefan (2019):
Dynamic Intermode Beat Frequency Control of an Optical Frequency Comb Single Section Quantum Dot Laser by Dual-Cavity Optical Self-Injection.
In: IEEE Photonics Journal, 11, (5), IEEE, ISSN 1943-0647,
DOI: 10.25534/tuprints-00009677,
Secondary publishing via sponsored Golden Open Access, [Article]

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Item Type: Article
Origin: Secondary publishing via sponsored Golden Open Access
Title: Dynamic Intermode Beat Frequency Control of an Optical Frequency Comb Single Section Quantum Dot Laser by Dual-Cavity Optical Self-Injection
Language: English
Abstract:

Dynamic frequency tuning of the 40.67 GHz intermode beat frequency of a 1255 nm emitting 1 mm long monolithic self mode-locked single section optical frequency comb InAs/InGaAs quantum dot laser across 70 MHz is experimentally demonstrated by fine-delay dual-cavity controlled all optical self-injection. Fiber-based macroscopic optical delay lengths are 9.4 m (round-trip time of 62.7 ns) and 16.5 m (round-trip time of 110.1 ns), the maximum studied microscopic delay tuning times are 40 ps and the optical self-injection strengths are below 0.02%. For selected delay times, the lowest intermode beat frequency line width amounts to 2 kHz indicating an improvement of carrier phase coherence by a factor of 700 as compared to the free-running laser. We validate these experimental results by a simple and universal stochastic time-domain model which is applied for the first time to model a self mode-locked quantum dot laser subject to optical self-injection. Modeling results are in good quantitative agreement.

Journal or Publication Title: IEEE Photonics Journal
Journal volume: 11
Number: 5
Publisher: IEEE
Classification DDC: 500 Naturwissenschaften und Mathematik > 530 Physik
Divisions: 05 Department of Physics > Institute of Applied Physics > Semiconductor Optics Group
Date Deposited: 11 Dec 2019 12:40
Last Modified: 11 Dec 2019 12:41
DOI: 10.25534/tuprints-00009677
Related URLs:
URN: urn:nbn:de:tuda-tuprints-96776
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/9677
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