Packaged and robust microcavity device based on a microcylinder-taper coupling system

We propose and realize a packaged structure for the microcylinder–taper coupling system by only gluing a glass tube and two glass plates together. Our package method avoids embedding the coupling system into the polymer, thus leaving the whispering gallery mode evanescent fields available for environmental sensing. The excitation of localized high-order axial modes in the cylindrical resonator fabricated by using a fusion splicer is demonstrated and a quality factor (Q) up to 1.4×107 is obtained. The Q maintenance and stable spectrum are realized by sealing the packaged device in a clean box. Moreover, the robustness of the packaged structure is also tested, demonstrating its remarkable antivibration ability. The portability and robustness of the device make it attractive in practical applications such as sensors, lasers, and especially some applied areas in strong vibration environments.

[1]  K. Vahala,et al.  Observation of strong coupling between one atom and a monolithic microresonator , 2006, Nature.

[2]  Michal Lipson,et al.  Athermal silicon microring resonators with titanium oxide cladding. , 2013, Optics express.

[3]  Zheng-Fu Han,et al.  Packaged silica microsphere-taper coupling system for robust thermal sensing application. , 2011, Optics express.

[4]  M. Wu,et al.  MEMS-actuated microdisk resonators with variable power coupling ratios , 2005, IEEE Photonics Technology Letters.

[5]  Anbo Wang,et al.  Temperature compensation of optical microresonators using a surface layer with negative thermo-optic coefficient. , 2007, Optics letters.

[6]  Mi Li,et al.  Mode characteristics of metal-coated microcavity , 2014 .

[7]  Tao Wei,et al.  Optical microresonator based on hollow sphere with porous wall for chemical sensing. , 2012, Optics letters.

[8]  Keyi Wang,et al.  Simulation and optimization of multilayer-coated microsphere in temperature and refractive index sensing , 2015 .

[9]  C. Poulton,et al.  Photoinduced axial quantization in chalcogenide microfiber resonators , 2013 .

[10]  V S Ilchenko,et al.  Frequency tuning of the whispering-gallery modes of silica microspheres for cavity quantum electrodynamics and spectroscopy. , 2001, Optics letters.

[11]  J. Knight,et al.  Phase-matched excitation of whispering-gallery-mode resonances by a fiber taper. , 1997, Optics letters.

[12]  Zheng-Fu Han,et al.  Fabrication of high-Q polydimethylsiloxane optical microspheres for thermal sensing , 2009 .

[13]  G. S. Murugan,et al.  Whispering gallery mode spectra of channel waveguide coupled microspheres. , 2008, Optics express.

[14]  K. Vahala,et al.  Ultralow-threshold Raman laser using a spherical dielectric microcavity , 2002, Nature.

[15]  Vien Van,et al.  Ultracompact SOI Microring Add–Drop Filter With Wide Bandwidth and Wide FSR , 2009, IEEE Photonics Technology Letters.

[16]  Steven H. Huang,et al.  Titanium Dioxide Whispering Gallery Microcavities , 2014 .

[17]  James S Wilkinson,et al.  Chalcogenide glass microsphere laser. , 2010, Optics express.

[18]  K. Vahala.  Optical microcavities : Photonic technologies , 2003 .

[19]  Lan Yang,et al.  Compensation of thermal refraction effect in high-Q toroidal microresonator by polydimethylsiloxane coating , 2008 .

[20]  Pier J. A. Sazio,et al.  Ultra-smooth microcylindrical resonators fabricated from the silicon optical fiber platform , 2011 .

[21]  K. Vahala.  Optical microcavities , 2003, Nature.

[22]  James S Wilkinson,et al.  Selective excitation of whispering gallery modes in a novel bottle microresonator. , 2009, Optics express.

[23]  M. Sumetsky,et al.  Mode localization and the Q-factor of a cylindrical microresonator. , 2010, Optics letters.

[24]  Ian M. White,et al.  Refractometric sensors based on microsphere resonators , 2005 .

[25]  M. Sumetsky,et al.  Radius variation of optical fibers with angstrom accuracy. , 2010, Optics letters.

[26]  Lan Yang,et al.  Encapsulation of a Fiber Taper Coupled Microtoroid Resonator in a Polymer Matrix , 2013, IEEE Photonics Technology Letters.

[27]  M. Andrés,et al.  Interrogation of whispering-gallery modes resonances in cylindrical microcavities by backreflection detection. , 2009, Optics letters.

[28]  Keyi Wang,et al.  Packaged microsphere-taper coupling system with a high Q factor. , 2015, Applied optics.

[29]  L. Maleki,et al.  Pigtailing the high-Q microsphere cavity: a simple fiber coupler for optical whispering-gallery modes. , 1999, Optics letters.