Ultrahigh-Q integrated flame-hydrolysis-deposited germano-silicate resonators on silicon
Hao-Jing Chen, Kellan Colburn, Hanfei Hou, Hongrui Yan, Avani Ranka, Jin-Yu Liu, Lue Wu, Bruno Moog, Oleksandr Buchnev, Stefano Fornetti, Christopher Holmes, James Gates, Dirk Bouwmeester, Henry Blauvelt, Kerry Vahala · 2026
Read Ultrahigh-Q integrated flame-hydrolysis-deposited germano-silicate resonators on silicon by Hao-Jing Chen, Kellan Colburn, Hanfei Hou, Hongrui Yan, Avani Ranka, Jin-Yu Liu, Lue Wu, Bruno Moog, Oleksandr Buchnev, Stefano Fornetti, Christopher Holmes, James Gates, Dirk Bouwmeester, Henry Blauvelt, Kerry Vahala (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13234339.txt.
Description
Hao-Jing Chen and a large team reported in 2026 on chip-scale optical resonators made with a process borrowed from fibre manufacturing. Optical fibres lose very little light, yet integrated photonic chips have not matched that performance. The authors used flame hydrolysis deposition, a mass production method for fibres, on silicon wafers. Their films mixed germanium oxide into silica glass.
High germanium content let the films harden fully at moderate heat. A furnace reflow step could repair damage from etching and sharply raise optical quality. Combined with deep ultraviolet patterning, the films formed resonators with quality factors up to 566 million at a near-infrared wavelength. Strong performance stretched from violet light to the telecommunications band. The approach points toward scalable chips with fibre-level light loss.
Catalog record
| CREATOR | Hao-Jing Chen, Kellan Colburn, Hanfei Hou, Hongrui Yan, Avani Ranka, Jin-Yu Liu, Lue Wu, Bruno Moog, Oleksandr Buchnev, Stefano Fornetti, Christopher Holmes, James Gates, Dirk Bouwmeester, Henry Blauvelt, Kerry Vahala |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 27 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |