Research Data Leeds Repository

Citation

Kundu, Iman and Wang, Feihu and Qi, Xiaoqiong and Nong, Hanond and Dean, Paul and Freeman, Joshua R. and Valavanis, Alexander and Agnew, Gary and Grier, Andrew and Taimre, Thomas and Li, Lianhe and Indjin, Dragan and Mangeney, Juliette and Tignon, Jérôme and Dhillon, Sukhdeep S. and Rakić, Aleksandar D. and Cunningham, John and Linfield, Edmund and Davies, A. Giles (2018) Dataset associated with 'Ultrafast switch-on dynamics of frequency tuneable semiconductor lasers'. University of Leeds. [Dataset] https://doi.org/10.5518/163

Dataset description

This dataset contains experimental data presented in the paper titled 'Ultrafast switch-on dynamics of frequency tuneable semiconductor lasers'. Single-mode frequency-tuneable semiconductor lasers based on monolithic integration of multiple cavity sections are important components, widely used in optical communications, photonic integrated circuits, and other optical technologies. To date, investigations of the ultrafast switching processes in such lasers, essential to reduce frequency cross-talk, have been restricted to the observation of intensity switching over nanosecond-timescales. Here, we report coherent measurements of the ultrafast switch-on dynamics, mode competition and frequency selection in a monolithic frequency-tuneable laser using coherent time-domain sampling of the laser emission. This approach allows us to observe hopping between lasing modes on picosecond-timescales and the temporal evolution of transient multi-mode emission into steady-state single mode emission. The underlying physics is explained through a full multi-mode, temperature dependent carrier and photon transport model. Our results show that the fundamental limit on the timescales of frequency-switching between competing modes varies with the underlying Vernier alignment of the laser cavity.

Subjects:	H000 - Engineering > H600 - Electronic & electrical engineering
Divisions:	Faculty of Engineering and Physical Sciences > School of Electronic and Electrical Engineering
Related resources:	Location Type https://eprints.whiterose.ac.uk/132584/ Publication https://doi.org/10.1038/s41467-018-05601-x Publication
License:	Creative Commons Attribution 4.0 International (CC BY 4.0)
Date deposited:	20 Jul 2018 12:31
URI:	https://archive.researchdata.leeds.ac.uk/id/eprint/395
Additional details Additional details Creators or authors: Creators ORCID Other ID Email Primary affiliation Primary affiliation ID Primary affiliation ID type Secondary affiliation Secondary affiliation ID Secondary affiliation ID type Kundu, Iman https://orcid.org/0000-0002-3564-1903 University of Leeds https://ror.org/024mrxd33 ror Wang, Feihu https://orcid.org/0000-0001-6801-8440 Université Paris Sciences et Lettres https://ror.org/013cjyk83 ror Qi, Xiaoqiong https://orcid.org/0000-0003-3354-535X University of Queensland https://ror.org/00rqy9422 ror Nong, Hanond Université Paris Sciences et Lettres https://ror.org/013cjyk83 ror Dean, Paul https://orcid.org/0000-0003-3257-620X University of Leeds https://ror.org/024mrxd33 ror Freeman, Joshua R. https://orcid.org/0000-0002-5493-6352 University of Leeds https://ror.org/024mrxd33 ror Valavanis, Alexander https://orcid.org/0000-0001-5565-0463 University of Leeds https://ror.org/024mrxd33 ror Agnew, Gary https://orcid.org/0000-0002-2498-824X University of Queensland https://ror.org/00rqy9422 ror Grier, Andrew https://orcid.org/0000-0003-1044-3166 University of Leeds https://ror.org/024mrxd33 ror Taimre, Thomas https://orcid.org/0000-0003-4470-7668 University of Queensland https://ror.org/00rqy9422 ror Li, Lianhe https://orcid.org/0000-0003-4998-7259 University of Leeds https://ror.org/024mrxd33 ror Indjin, Dragan https://orcid.org/0000-0002-9121-9846 University of Leeds https://ror.org/024mrxd33 ror Mangeney, Juliette https://orcid.org/0000-0002-4354-4257 Université Paris Sciences et Lettres https://ror.org/013cjyk83 ror Tignon, Jérôme https://orcid.org/0000-0002-7599-9889 Université Paris Sciences et Lettres https://ror.org/013cjyk83 ror Dhillon, Sukhdeep S. https://orcid.org/0000-0002-5487-9570 Université Paris Sciences et Lettres https://ror.org/013cjyk83 ror Rakić, Aleksandar D. https://orcid.org/0000-0002-4615-2240 University of Queensland https://ror.org/00rqy9422 ror Cunningham, John https://orcid.org/0000-0002-1805-9743 University of Leeds https://ror.org/024mrxd33 ror Linfield, Edmund https://orcid.org/0000-0001-6912-0535 University of Leeds https://ror.org/024mrxd33 ror Davies, A. Giles https://orcid.org/0000-0002-1987-4846 University of Leeds https://ror.org/024mrxd33 ror Type of data: Dataset Research funders: EU - European Union, EU - European Union, EU - European Union, Royal Society, Royal Society, Royal Society, EPSRC, EPSRC Grant numbers: CGA-BM1205-1, CGA-BM1205-2, GA 665158, WM110032, 2012/R2, WM150029, EP/J017671/1, EP/P021859/1 Publication date: 2018 Resource language: English Metadata language: English Publisher: University of Leeds Contact email: I.Kundu@Leeds.ac.uk Last Modified: 03 Sep 2024 07:42

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Documentation

readme [3kB] readme [3kB] readme [3kB] Security: Anyone File name: readme.txt Content type: Documentation Mime-Type: text/plain License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 3kB

Data

Figure 1a [289kB] Figure 1a [289kB] Figure 1a [289kB] Security: Anyone File name: Fig_1a.xlsx Content type: Data Description: Experimentally recorded spectra. Laser cavity was driven at 0.75A and the tuning cavity current was varied (at 5K). Side mode suppression ratio at two discrete emission frequencies for tuning current amplitudes of 0A and 1.97A are also included. Mime-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 289kB

Figure 1b [9kB] Figure 1b [9kB] Figure 1b [9kB] Security: Anyone File name: Fig_1b.xlsx Content type: Data Description: Side mode suppression ratio and output power of modes at 2.825THz and 2.765THz (processed from experimentally recorded spectra) as a function of tuning current amplitudes. Mime-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 9kB

Figure 1c [53kB] Figure 1c [53kB] Figure 1c [53kB] Security: Anyone File name: Fig_1c.xlsx Content type: Data Description: Simulation of the steady-state emission spectrum of the coupled-cavity laser for different current amplitudes supplied to the tuning section, calculated using a transfer matrix model. Mime-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 53kB

Figure 3a [799kB] Figure 3a [799kB] Figure 3a [799kB] Security: Anyone File name: Fig_3a.xlsx Content type: Data Description: Experimentally recorded electric field emitted from the output facet of the tuning cavity, measured as a function of time, when the lasing cavity is driven using quasi-direct current pulses of amplitude 0.65 A and the tuning cavity is switched off. Mime-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 799kB

Figure 3b [1MB] Figure 3b [1MB] Figure 3b [1MB] Security: Anyone File name: Fig_3b.xlsx Content type: Data Description: Temporal dynamic variation of the emission spectra (processed from experimentally recorded time-domain electric field) using a moving time window of width 150ps. Mime-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 1MB

Figure 3c [400kB] Figure 3c [400kB] Figure 3c [400kB] Security: Anyone File name: Fig_3c.xlsx Content type: Data Description: Processed spectra obtained from fast Fourier transform of the time-domain electric field using a time window of width ~460ps beginning at t=400ps and 1700ps. Mime-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 400kB

Figure 4a [19kB] Figure 4a [19kB] Figure 4a [19kB] Security: Anyone File name: Fig_4a.xlsx Content type: Data Description: Experimentally recorded distribution of power amongst lasing modes at 2.795, 2.825 and 2.855THz, as a function of cavity round-trips. Mime-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 19kB

Figure 4b [1MB] Figure 4b [1MB] Figure 4b [1MB] Security: Anyone File name: Fig_4b.xlsx Content type: Data Description: Data from simulation of changes in distribution of power amongst lasing modes at 2.795, 2.825 and 2.855THz, as a function of cavity round-trips. Mime-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 1MB

Figure 5a [5MB] Figure 5a [5MB] Figure 5a [5MB] Security: Anyone File name: Fig_5a.xlsx Content type: Data Description: Experimentally recorded electric field emitted from the output facet of the tuning cavity when the lasing cavity is driven using quasi-direct current pulses of amplitude 0.65 A and at different currents at the tuning cavity. Mime-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 5MB

Figure 5b [9kB] Figure 5b [9kB] Figure 5b [9kB] Security: Anyone File name: Fig_5b.xlsx Content type: Data Description: Data from simulation of comb alignment at frequencies 2.765THz and 2.825THz, as a function of current pulse amplitudes at the tuning cavity. Mime-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 9kB

Figure 5c [10kB] Figure 5c [10kB] Figure 5c [10kB] Security: Anyone File name: Fig_5c.xlsx Content type: Data Description: Experimentally measured switch-on delay and simulated laser stabilisation time, as a function of current pulse amplitudes at the tuning cavity. Mime-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 10kB

Image file corresponding to Figure 1 [396kB] Image file corresponding to Figure 1 [396kB] Image file corresponding to Figure 1 [396kB] Security: Anyone File name: 1.png Content type: Data Mime-Type: image/png License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 396kB

Image file corresponding to Figure 2 [104kB] Image file corresponding to Figure 2 [104kB] Image file corresponding to Figure 2 [104kB] Security: Anyone File name: 2.png Content type: Data Mime-Type: image/png License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 104kB

Image file corresponding to Figure 3 [592kB] Image file corresponding to Figure 3 [592kB] Image file corresponding to Figure 3 [592kB] Security: Anyone File name: 3.png Content type: Data Mime-Type: image/png License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 592kB

Image file corresponding to Figure 4 [223kB] Image file corresponding to Figure 4 [223kB] Image file corresponding to Figure 4 [223kB] Security: Anyone File name: 4.png Content type: Data Mime-Type: image/png License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 223kB

Image file corresponding to Figure 5 [366kB] Image file corresponding to Figure 5 [366kB] Image file corresponding to Figure 5 [366kB] Security: Anyone File name: 5.png Content type: Data Mime-Type: image/png License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 366kB