---
res:
  bibo_abstract:
  - <jats:p>We investigated the spectral properties of squeezed light generated via
    parametric down-conversion in the high-gain regime, considering both unapodized
    and apodized dispersion-engineered waveguides. The gain-dependent evolution of
    these states is examined starting from the low-gain regime, which includes both
    highly correlated and nearly uncorrelated cases. For the unapodized configuration,
    our simulated results show a monotonic increase in spectral purity with gain,
    whereas for some of the apodized configuration, they exhibit a nonmonotonic dependence,
    initially decreasing and then recovering at higher gain. By combining Schmidt-mode
    analysis with a group-velocity-based interpretation, we explain why different
    dispersion conditions exhibit distinct gain-dependent behavior, specifically that
    rapid purification occurs when the pump group velocity lies between those of the
    signal and idler. Our study shows that the evolution of spectral purity is governed
    primarily by the underlying dispersion of the waveguide. These results demonstrate
    that dispersion engineering and parametric gain can be jointly exploited to tailor
    the spectral-mode structure of squeezed-light sources, enabling their optimization
    for a broad range of quantum applications.</jats:p>@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Jatin
      foaf_name: Kumar, Jatin
      foaf_surname: Kumar
  - foaf_Person:
      foaf_givenName: Aleksa
      foaf_name: Krstić, Aleksa
      foaf_surname: Krstić
  - foaf_Person:
      foaf_givenName: Sina
      foaf_name: Saravi, Sina
      foaf_surname: Saravi
  - foaf_Person:
      foaf_givenName: Frank
      foaf_name: Setzpfandt, Frank
      foaf_surname: Setzpfandt
  bibo_doi: 10.1103/2hth-yy33
  bibo_issue: '2'
  bibo_volume: 114
  dct_date: 2026^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/2469-9926
  - http://id.crossref.org/issn/2469-9934
  dct_language: eng
  dct_publisher: American Physical Society (APS)@
  dct_title: Toward spectral engineering of squeezed light in high-gain parametric
    down-conversion@
...