Dispersion Tailoring and Four-Wave Mixing in Silica Microspheres with Germanosilicate Coating

Optical whispering gallery mode microresonators with controllable parameters in the telecommunication range are demanded for diverse applications. Controlling group velocity dispersion (GVD) in microresonators is an important problem, as near-zero GVD in a broad wavelength range could contribute to...

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Autores principales:	Maria P. Marisova, Alexey V. Andrianov, Gerd Leuchs, Elena A. Anashkina
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	whispering gallery mode microresonator microsphere with coating silica microsphere four-wave mixing dispersion tailoring Applied optics. Photonics TA1501-1820
Acceso en línea:	https://doaj.org/article/d3a542e937c14da48e98953c1db7412d
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spelling	oai:doaj.org-article:d3a542e937c14da48e98953c1db7412d2021-11-25T18:43:05ZDispersion Tailoring and Four-Wave Mixing in Silica Microspheres with Germanosilicate Coating10.3390/photonics81104732304-6732https://doaj.org/article/d3a542e937c14da48e98953c1db7412d2021-10-01T00:00:00Zhttps://www.mdpi.com/2304-6732/8/11/473https://doaj.org/toc/2304-6732Optical whispering gallery mode microresonators with controllable parameters in the telecommunication range are demanded for diverse applications. Controlling group velocity dispersion (GVD) in microresonators is an important problem, as near-zero GVD in a broad wavelength range could contribute to the development of new microresonator-based light sources. We demonstrated theoretically near-zero dispersion tailoring in the SCL-band in combination with free-spectral range (FSR) optimization for FSR = 200 GHz and 300 GHz in silica glass microspheres with micron-scale germanosilicate coating. As an illustration of a possible application of such a GVD, we also performed a theoretical study of degenerate four-wave mixing (FWM) processes in the proposed microresonators for pumping in the SCL-band. We found that in some cases the generation of two or even three pairs of waves–satellites in a FWM process is possible in principle due to the specific GVD features. We also determined optimal microresonator configurations for achieving gradual change in the satellite frequency shift for the pump wavelengths in the SCL-, S-, CL-, C-, and L-bands. The maximum obtained FWM satellite tunability span was ~78 THz for a pump wavelength change of ~30 nm, which greatly exceeds the results for a regular silica microsphere without coating.Maria P. MarisovaAlexey V. AndrianovGerd LeuchsElena A. AnashkinaMDPI AGarticlewhispering gallery mode microresonatormicrosphere with coatingsilica microspherefour-wave mixingdispersion tailoringApplied optics. PhotonicsTA1501-1820ENPhotonics, Vol 8, Iss 473, p 473 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	whispering gallery mode microresonator microsphere with coating silica microsphere four-wave mixing dispersion tailoring Applied optics. Photonics TA1501-1820
spellingShingle	whispering gallery mode microresonator microsphere with coating silica microsphere four-wave mixing dispersion tailoring Applied optics. Photonics TA1501-1820 Maria P. Marisova Alexey V. Andrianov Gerd Leuchs Elena A. Anashkina Dispersion Tailoring and Four-Wave Mixing in Silica Microspheres with Germanosilicate Coating
description	Optical whispering gallery mode microresonators with controllable parameters in the telecommunication range are demanded for diverse applications. Controlling group velocity dispersion (GVD) in microresonators is an important problem, as near-zero GVD in a broad wavelength range could contribute to the development of new microresonator-based light sources. We demonstrated theoretically near-zero dispersion tailoring in the SCL-band in combination with free-spectral range (FSR) optimization for FSR = 200 GHz and 300 GHz in silica glass microspheres with micron-scale germanosilicate coating. As an illustration of a possible application of such a GVD, we also performed a theoretical study of degenerate four-wave mixing (FWM) processes in the proposed microresonators for pumping in the SCL-band. We found that in some cases the generation of two or even three pairs of waves–satellites in a FWM process is possible in principle due to the specific GVD features. We also determined optimal microresonator configurations for achieving gradual change in the satellite frequency shift for the pump wavelengths in the SCL-, S-, CL-, C-, and L-bands. The maximum obtained FWM satellite tunability span was ~78 THz for a pump wavelength change of ~30 nm, which greatly exceeds the results for a regular silica microsphere without coating.
format	article
author	Maria P. Marisova Alexey V. Andrianov Gerd Leuchs Elena A. Anashkina
author_facet	Maria P. Marisova Alexey V. Andrianov Gerd Leuchs Elena A. Anashkina
author_sort	Maria P. Marisova
title	Dispersion Tailoring and Four-Wave Mixing in Silica Microspheres with Germanosilicate Coating
title_short	Dispersion Tailoring and Four-Wave Mixing in Silica Microspheres with Germanosilicate Coating
title_full	Dispersion Tailoring and Four-Wave Mixing in Silica Microspheres with Germanosilicate Coating
title_fullStr	Dispersion Tailoring and Four-Wave Mixing in Silica Microspheres with Germanosilicate Coating
title_full_unstemmed	Dispersion Tailoring and Four-Wave Mixing in Silica Microspheres with Germanosilicate Coating
title_sort	dispersion tailoring and four-wave mixing in silica microspheres with germanosilicate coating
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d3a542e937c14da48e98953c1db7412d
work_keys_str_mv	AT mariapmarisova dispersiontailoringandfourwavemixinginsilicamicrosphereswithgermanosilicatecoating AT alexeyvandrianov dispersiontailoringandfourwavemixinginsilicamicrosphereswithgermanosilicatecoating AT gerdleuchs dispersiontailoringandfourwavemixinginsilicamicrosphereswithgermanosilicatecoating AT elenaaanashkina dispersiontailoringandfourwavemixinginsilicamicrosphereswithgermanosilicatecoating
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Dispersion Tailoring and Four-Wave Mixing in Silica Microspheres with Germanosilicate Coating

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