A robust and tunable add-drop filter using whispering gallery mode microtoroid resonator

Faraz Monifi, Jacob Friedlein, Şahin Kaya Özdemir, Lan Yang

Research output: Contribution to journalArticle

80 Citations (Scopus)

Abstract

We fabricated and theoretically investigated an add-drop filter (ADF) using an on-chip whispering gallery mode (WGM) microtoroid resonator with ultrahigh-quality factor (Q) side coupled to two taper fibers, forming the bus and drop waveguides. The new device design incorporates silica side walls close to the microresonators which not only enable placing the coupling fibers on the same plane with respect to the microtoroid resonator but also provides mechanical stability, leading to an ADF with high drop efficiency and improved robustness to environmental perturbations. We show that this new device can be thermally tuned to drop desired wavelengths from the bus without significantly affecting the drop efficiency, which is around 57%.

Original languageEnglish (US)
Article number6280580
Pages (from-to)3306-3315
Number of pages10
JournalJournal of Lightwave Technology
Volume30
Issue number21
DOIs
StatePublished - Oct 29 2012

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whispering gallery modes
resonators
filters
fibers
tapering
Q factors
chips
silicon dioxide
waveguides
perturbation
wavelengths

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

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A robust and tunable add-drop filter using whispering gallery mode microtoroid resonator. / Monifi, Faraz; Friedlein, Jacob; Özdemir, Şahin Kaya; Yang, Lan.

In: Journal of Lightwave Technology, Vol. 30, No. 21, 6280580, 29.10.2012, p. 3306-3315.

Research output: Contribution to journalArticle

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