---
res:
  bibo_abstract:
  - <jats:p>Stable and bright single photon sources are key components for future
    quantum applications. A simple fabrication method is an important requirement
    for such sources. Here, we present a single photon source based on diced ridge
    waveguides in titanium indiffused LiNbO<jats:sub>3</jats:sub>. These waveguides
    can be easily fabricated by combining planar titanium in-diffusion without lithographic
    patterning and easy-to-handle precision dicing. Such devices have the potential
    to generate high single photon rates because ridge structures are typically less
    prone to the photorefractive effect. We achieve waveguide propagation losses &lt;0.4dBcm
    and a SHG conversion efficiency of about 81%Wcm<jats:sup>2</jats:sup>. Harnessing
    a type-0 SPDC process to generate 1550 nm photons, we obtain a SPDC brightness
    of 3⋅10<jats:sup>5</jats:sup>1s⋅mW⋅nm, with a heralding efficiency of <jats:italic>η</jats:italic><jats:sub>h</jats:sub>=45%
    (<jats:italic>η</jats:italic><jats:sub>h,wg</jats:sub>=77.5% for the waveguide
    itself excluded setup losses) and a heralded second-order correlation function
    of <jats:italic>g</jats:italic><jats:sub>h</jats:sub><jats:sup>2</jats:sup>(0)&lt;0.003
    at low pump powers.</jats:p>@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Christian
      foaf_name: Kießler, Christian
      foaf_surname: Kießler
      foaf_workInfoHomepage: http://www.librecat.org/personId=44252
  - foaf_Person:
      foaf_givenName: Michelle
      foaf_name: Kirsch, Michelle
      foaf_surname: Kirsch
      foaf_workInfoHomepage: http://www.librecat.org/personId=69553
  - foaf_Person:
      foaf_givenName: Sebastian
      foaf_name: Lengeling, Sebastian
      foaf_surname: Lengeling
      foaf_workInfoHomepage: http://www.librecat.org/personId=44373
  - foaf_Person:
      foaf_givenName: Harald
      foaf_name: Herrmann, Harald
      foaf_surname: Herrmann
      foaf_workInfoHomepage: http://www.librecat.org/personId=216
  - foaf_Person:
      foaf_givenName: Christine
      foaf_name: Silberhorn, Christine
      foaf_surname: Silberhorn
      foaf_workInfoHomepage: http://www.librecat.org/personId=26263
  bibo_doi: 10.1364/optcon.557439
  bibo_issue: '3'
  bibo_volume: 4
  dct_date: 2025^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/2770-0208
  dct_language: eng
  dct_publisher: Optica Publishing Group@
  dct_title: SPDC single-photon source in Ti-indiffused diced ridge LiNbO<sub>3</sub>
    waveguides@
...