---
res:
  bibo_abstract:
  - <jats:p>Laterally coupled vertical-cavity surface-emitting lasers (VCSELs) can
    exhibit additional resonances at high modulation frequencies that can substantially
    increase the laser’s modulation bandwidth. State-of-the-art laterally coupled
    devices require non-standard manufacturing technology and precise tuning of the
    currents supplied to each cavity separately to form optical supermodes suitable
    for such resonances. Here, we report on a novel switching phenomenon in laterally
    coupled VCSEL structures having only a single common electric contact and manufactured
    in a standard oxide-confined VCSEL geometry. At lower currents, they can be operated
    in a weakly coupled (WCR) regime and, at higher currents, in an injection-locked
    (IL) regime, enabling fundamentally different spectral and dynamic features. In
    the WCR, both optical supermodes lase and a narrow tunable plasma-assisted peak
    at their beating frequency is observed for each of the apertures, with a current-dependent
    frequency tuning and anti-phase intensity oscillations in each of the cavities.
    In contrast, in the IL regimes, only one (anti-symmetric) supermode lases. This
    adds a broader resonance to the modulation response while the intensity oscillations
    in both cavities are in-phase. Only the IL regime can result in increased modulation
    bandwidth of the system. Measurements of the pulse responses and continuous modulation
    up to 70 GHz for both operational regimes are presented and compared with simulations
    of our distributed rate equation model whose parameters are extracted from full-wave
    electromagnetic simulations of the device, including the temperature distribution
    in the device. Excellent agreement is found and enables comprehensive understanding
    of the dynamics of supermodes in oxide-confined coupled cavity VCSELs.</jats:p>@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: M.
      foaf_name: Lindemann, M.
      foaf_surname: Lindemann
  - foaf_Person:
      foaf_givenName: M.
      foaf_name: D’Alessandro, M.
      foaf_surname: D’Alessandro
  - foaf_Person:
      foaf_givenName: N.
      foaf_name: Ledentsov, N.
      foaf_surname: Ledentsov
  - foaf_Person:
      foaf_givenName: O. Y.
      foaf_name: Makarov, O. Y.
      foaf_surname: Makarov
  - foaf_Person:
      foaf_givenName: N. N.
      foaf_name: Ledentsov, N. N.
      foaf_surname: Ledentsov
  - foaf_Person:
      foaf_givenName: A.
      foaf_name: Tibaldi, A.
      foaf_surname: Tibaldi
  - foaf_Person:
      foaf_givenName: Nils Christopher
      foaf_name: Gerhardt, Nils Christopher
      foaf_surname: Gerhardt
      foaf_workInfoHomepage: http://www.librecat.org/personId=115298
    orcid: 0009-0002-5538-231X
  - foaf_Person:
      foaf_givenName: M. R.
      foaf_name: Hofmann, M. R.
      foaf_surname: Hofmann
  bibo_doi: 10.1063/5.0275622
  bibo_issue: '5'
  bibo_volume: 138
  dct_date: 2025^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/0021-8979
  - http://id.crossref.org/issn/1089-7550
  dct_language: eng
  dct_publisher: AIP Publishing@
  dct_title: Laterally coupled vertical-cavity surface-emitting lasers with                    tunable
    resonance width and frequency@
...