The effect of relaxation oscillations in integrated optical comb demultiplexers based on injection locking

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Date
2019-09-18
Authors
Shortiss, Kevin
Dernaika, Mohamad
Shayesteh, Maryam
Peters, Frank H.
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Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Published Version
10.1109/JQE.2019.2942053
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Abstract
Narrowly spaced optical combs are being considered for use in future wavelength division multiplexing optical networks. Optical injection locking has been demonstrated as an effective method of demultiplexing these narrow optical combs, and recent research has shown monolithically integrable designs can achieve side mode suppression ratios of greater than 35 dB. We present an experimental and theoretical study on how the side mode suppression ratio of these demultiplexers varies with the injected comb frequency spacing, the detuning between the slave laser and the comb, and optical injection strength. We show that the performance of these demultiplexers depends strongly on the difference between the relaxation oscillation frequency and the frequency spacing of the injected comb.
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Keywords
Optical attenuators , Optical transmitters , Semiconductor lasers , Optical pumping , Optical modulation , Measurement by laser beam , Integrated optics , Optical demultiplexing , Injection-locked oscillator , Optical comb
Citation
Shortiss, K., Dernaika, M., Shayesteh, M. and Peters, F. H. (2019) 'The effect of relaxation oscillations in integrated optical comb demultiplexers based on injection locking', IEEE Journal of Quantum Electronics. doi: 10.1109/JQE.2019.2942053
Link to publisher’s version
https://ieeexplore.ieee.org/document/8844062
URI
https://hdl.handle.net/10468/8791
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Physics - Journal Articles
Tyndall National Institute - Journal Articles
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© 2019, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.