Germanium-on-silicon Vernier-effect photonic microcavities for the mid-infrared.
Opt Lett
; 41(3): 610-3, 2016 Feb 01.
Article
em En
| MEDLINE
| ID: mdl-26907436
ABSTRACT
We present Vernier-effect photonic microcavities based on a germanium-on-silicon technology platform, operating around the mid-infrared wavelength of 3.8 µm. Cascaded racetrack resonators have been designed to operate in the second regime of the Vernier effect, and typical Vernier comb-like spectra have been successfully demonstrated with insertion losses of â¼5 dB, maximum extinction ratios of â¼23 dB, and loaded quality factors higher than 5000. Furthermore, an add-drop racetrack resonator designed for a Vernier device has been characterized, exhibiting average insertion losses of 1 dB, extinction ratios of up to 18 dB, and a quality factor of â¼1700.
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MEDLINE
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En
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Opt Lett
Ano de publicação:
2016
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Article