Journal ArticleDOI
Narrowband tunable photonic notch filter.
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TLDR
This work proposes a technique for realization of a high-contrast, tunable, low-insertion-loss notch filter using polarization selectivity of whispering-gallery-mode resonators and shows that the filter can potentially have tunable bandwidth without significant rejection modification.Abstract:
We propose a technique for realization of a high-contrast, tunable, low-insertion-loss notch filter using polarization selectivity of whispering-gallery-mode resonators. We demonstrate a 10 MHz filter with 5.5 dB insertion loss and 45.5 dB of in-band rejection. The measured rejection value is limited by the finite (3 kHz) linewidth of our laser. We show that the filter can potentially have tunable bandwidth without significant rejection modification.read more
Citations
More filters
Journal ArticleDOI
Low-power, chip-based stimulated Brillouin scattering microwave photonic filter with ultrahigh selectivity
David Marpaung,Blair Morrison,Mattia Pagani,Ravi Pant,Duk-Yong Choi,Barry Luther-Davies,Steve Madden,Benjamin J. Eggleton +7 more
TL;DR: In this paper, a chip-based MWP bandstop filter with ultrahigh suppression, high resolution in the megahertz range, and 0-30 GHz frequency tuning is presented. But the performance is limited by trade-offs between key parameters such as tuning range, resolution, and suppression.
Journal ArticleDOI
Si3N4 ring resonator-based microwave photonic notch filter with an ultrahigh peak rejection
David Marpaung,Blair Morrison,Ravi Pant,Chris G. H. Roeloffzen,Arne Leinse,Marcel Hoekman,Rene Gerrit Heideman,Benjamin J. Eggleton +7 more
TL;DR: An MWP notch filter with an ultra-high peak rejection > 60 dB, a tunable high resolution bandwidth of 247-840 MHz, and notch frequency tuning of 2-8 GHz is achieved, which is a record combined peak rejection and resolution for an integrated MWP filter.
Journal ArticleDOI
Frequency agile microwave photonic notch filter with anomalously high stopband rejection
TL;DR: A novel class microwave photonic notch filter with a very narrow isolation bandwidth, an ultrahigh stopband rejection, a wide frequency tuning, and flexible bandwidth reconfigurability is reported.
Journal ArticleDOI
Synthetic-lattice enabled all-optical devices based on orbital angular momentum of light.
Xi-Wang Luo,Xingxiang Zhou,Jin-Shi Xu,Chuan-Feng Li,Guang-Can Guo,Chuanwei Zhang,Zheng-Wei Zhou +6 more
TL;DR: The design route utilizing synthetic photonic lattices may significantly reduce the requirement for numerous optical elements and their fine tuning in conventional design, paving the way for realistic all-optical photonic devices with novel functionalities.
Journal ArticleDOI
Controling the coupling properties of active ultrahigh-Q WGM microcavities from undercoupling to selective amplification.
Alphonse Rasoloniaina,Vincent Huet,Thi Kim Ngân Nguyên,E. Le Cren,Michel Mortier,L. Michely,Yannick Dumeige,Patrice Feron +7 more
TL;DR: It is shown that an optical gain provided by erbium ions can compensate for residual losses and it is possible to control the coupling regime of an ultrahigh Q-factor three port microresonator from undercoupling to spectral selective amplification by changing the pumping rate.
References
More filters
Journal ArticleDOI
Ideality in a fiber-taper-coupled microresonator system for application to cavity quantum electrodynamics.
TL;DR: To verify this level of coupling, a technique is introduced that can both measure ideality over a range of coupling strengths and provide a practical diagnostic of parasitic coupling within the fiber-taper-waveguide junction.
Journal ArticleDOI
Critical coupling and its control in optical waveguide-ring resonator systems
TL;DR: In this paper, the coupling of optical waveguides to ring resonators holds the promise of a new generation of switches (modulators) which employ orders of magnitude smaller switching (modulation) voltages (or control intensities).
Journal ArticleDOI
Optical resonators with whispering-gallery modes-part II: applications
TL;DR: In this article, the authors review photonic applications of dielectric whispering-gallery mode (WGM) resonators and trace the growth of the technology from experiments with levitating droplets of aerosols to ultrahigh-Q solid state crystalline and integrated on-chip microresonators.
Journal ArticleDOI
Discrete-time optical Processing of microwave signals
TL;DR: In this paper, the fundamental principles and recent advances in the field of photonic filtering of microwave signals using discrete-time incoherent processing are presented and a comprehensive review of the fundamentals, applications, and current state of the art is provided.
ReportDOI
1/F Frequency Noise Effects on Self-Heterodyne Linewidth Measurements for Coherent Communications
TL;DR: In this article, the autorcorrelation function and power spectrum of the self-heterodyne photocurrent were developed in terms of an arbitrary frequency noise. And the effect of 1/f frequency noise on the detection performance was analyzed and the results were applied to the problem of laser diode-linewidth measurement.