Research Data Leeds Repository

Dataset associated with 'Ultrafast switch-on dynamics of frequency tuneable semiconductor lasers'

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 T 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 http://eprints.whiterose.ac.uk/132584/ Publication
License:	Creative Commons Attribution 4.0 International (CC BY 4.0)
Date deposited:	20 Jul 2018 12:31
URI:	http://archive.researchdata.leeds.ac.uk/id/eprint/395
Additional details Additional details Creators: 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 Wang, Feihu Qi, Xiaoqiong Nong, Hanond Dean, Paul https://orcid.org/0000-0003-3257-620X Freeman, Joshua R https://orcid.org/0000-0002-5493-6352 Valavanis, Alexander https://orcid.org/0000-0001-5565-0463 Agnew, Gary Grier, Andrew T https://orcid.org/0000-0003-1044-3166 Taimre, Thomas Li, Lianhe Indjin, Dragan Mangeney, Juliette Tignon, Jérôme Dhillon, Sukhdeep S Rakić, Aleksandar D Cunningham, John https://orcid.org/0000-0002-1805-9743 Linfield, Edmund https://orcid.org/0000-0001-6912-0535 Davies, A Giles https://orcid.org/0000-0002-1987-4846 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 Publisher: University of Leeds Contact Email Address: I.Kundu@Leeds.ac.uk Last Modified: 20 Jul 2018 22:45

Files

Documentation

readme [3kB] readme [3kB] readme [3kB] Visible to: 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] Visible to: 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] Visible to: 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] Visible to: 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] Visible to: 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] Visible to: 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] Visible to: 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] Visible to: 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] Visible to: 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] Visible to: 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] Visible to: 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] Visible to: 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] Visible to: 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] Visible to: 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] Visible to: 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] Visible to: 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] Visible to: 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