{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["649(8096)"],"submitter":["Chen HJ"],"pubmed_abstract":["Over the past decades, remarkable progress has been made in reducing the loss of photonic integrated circuits (PICs) within the telecom band<sup>1-4</sup>, facilitating on-chip applications spanning low-noise optical<sup>5</sup> and microwave synthesis<sup>6</sup>, to lidar<sup>7</sup> and photonic artificial intelligence engines<sup>8</sup>. However, several obstacles arise from the marked increase in material absorption and scattering losses at shorter wavelengths<sup>9,10</sup>, which prominently elevate power requirements and limit performance in the visible and near-visible spectrum. Here we present an ultralow-loss PIC platform based on germano-silicate-the material underlying the extraordinary performance of optical fibre-but realized by a fully CMOS-foundry-compatible process. These PICs achieve resonator Q factors surpassing 180 million from violet to telecom wavelengths. They also attain a 10-dB higher quality factor without thermal treatment in the telecom band, expanding opportunities for heterogeneous integration with active components<sup>11</sup>. Other features of this platform include readily engineered waveguide dispersion, acoustic mode confinement and large-mode-area-induced thermal stability-each demonstrated by soliton microcomb generation, stimulated Brillouin lasing and low-frequency-noise self-injection locking, respectively. The success of these germano-silicate PICs can ultimately enable fibre-like loss onto a chip, leading to an additional 20-dB improvement in waveguide loss over the current highest performance photonic platforms. Moreover, the performance abilities demonstrated here bridge ultralow-loss PIC technology to optical clocks<sup>12</sup>, precision navigation systems<sup>13</sup> and quantum sensors<sup>14</sup>."],"journal":["Nature"],"pagination":["338-344"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12779554"],"repository":["biostudies-literature"],"pubmed_title":["Towards fibre-like loss for photonic integration from violet to near-infrared."],"pmcid":["PMC12779554"],"pubmed_authors":["Gates J","Bouwmeester D","Vahala K","Liu P","Ge J","Blauvelt H","Ji QX","Chen HJ","Lehan P","Colburn K","Liu JY","Holmes C","Hou H","Yan H","Yuan Z"],"additional_accession":[]},"is_claimable":false,"name":"Towards fibre-like loss for photonic integration from violet to near-infrared.","description":"Over the past decades, remarkable progress has been made in reducing the loss of photonic integrated circuits (PICs) within the telecom band<sup>1-4</sup>, facilitating on-chip applications spanning low-noise optical<sup>5</sup> and microwave synthesis<sup>6</sup>, to lidar<sup>7</sup> and photonic artificial intelligence engines<sup>8</sup>. However, several obstacles arise from the marked increase in material absorption and scattering losses at shorter wavelengths<sup>9,10</sup>, which prominently elevate power requirements and limit performance in the visible and near-visible spectrum. Here we present an ultralow-loss PIC platform based on germano-silicate-the material underlying the extraordinary performance of optical fibre-but realized by a fully CMOS-foundry-compatible process. These PICs achieve resonator Q factors surpassing 180 million from violet to telecom wavelengths. They also attain a 10-dB higher quality factor without thermal treatment in the telecom band, expanding opportunities for heterogeneous integration with active components<sup>11</sup>. Other features of this platform include readily engineered waveguide dispersion, acoustic mode confinement and large-mode-area-induced thermal stability-each demonstrated by soliton microcomb generation, stimulated Brillouin lasing and low-frequency-noise self-injection locking, respectively. The success of these germano-silicate PICs can ultimately enable fibre-like loss onto a chip, leading to an additional 20-dB improvement in waveguide loss over the current highest performance photonic platforms. Moreover, the performance abilities demonstrated here bridge ultralow-loss PIC technology to optical clocks<sup>12</sup>, precision navigation systems<sup>13</sup> and quantum sensors<sup>14</sup>.","dates":{"release":"2026-01-01T00:00:00Z","publication":"2026 Jan","modification":"2026-06-14T06:13:36.571Z","creation":"2026-06-14T03:17:03.868Z"},"accession":"S-EPMC12779554","cross_references":{"pubmed":["41501200"],"doi":["10.1038/s41586-025-09889-w"]}}