OSA's Digital Library

Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 15 — Jul. 18, 2011
  • pp: 14217–14222

Optically tunable microfiber-knot resonator

Zhe Chen, Vincent K. S. Hsiao, Xiaoqing Li, Zhen Li, Jianhui Yu, and Jun Zhang  »View Author Affiliations


Optics Express, Vol. 19, Issue 15, pp. 14217-14222 (2011)
http://dx.doi.org/10.1364/OE.19.014217


View Full Text Article

Enhanced HTML    Acrobat PDF (972 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

This paper demonstrates light-induced tuning of the optical spectrum by a microfiber-knot resonator overlaid with a photoresponsive liquid crystal (LC) mixture containing photosensitive diluents (non-mesogenic azobenzene molecules), a chiral dopant and a nematic LC. The high-quality resonator is made by drawing a single mode fiber to a micro-size diameter and causing the microfiber to self-twist into a knot. A thin layer of a photosensitive mixture was placed on the overlap (knot) area and gentle heating was used to obtain a uniform thin film which coated the fiber’s surface. Upon irradiation with UV light, noticeable changes to the peak resonance wavelengths were observed which we associate with a local change in the refractive index (RI) in the fiber’s tapering area. Repeatable and reversible spectral shifting (0.15 nm) of the resonance wavelength is demonstrated by irradiation with 50 mW/cm2 UV light.

© 2011 OSA

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(230.1150) Optical devices : All-optical devices
(230.3720) Optical devices : Liquid-crystal devices

ToC Category:
Optical Devices

History
Original Manuscript: May 11, 2011
Revised Manuscript: June 18, 2011
Manuscript Accepted: June 22, 2011
Published: July 11, 2011

Citation
Zhe Chen, Vincent K. S. Hsiao, Xiaoqing Li, Zhen Li, Jianhui Yu, and Jun Zhang, "Optically tunable microfiber-knot resonator," Opt. Express 19, 14217-14222 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-15-14217


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. M. Sumetsky, Y. Dulashko, J. M. Fini, A. Hale, and D. J. DiGiovanni, “The microfiber loop resonator: theory, experiment, and application,” J. Lightwave Technol. 24(1), 242–250 (2006). [CrossRef]
  2. X. S. Jiang, L. M. Tong, G. Vienne, X. Guo, A. Tsao, Q. Yang, and D. Yang, “Demonstration of optical microfiber knot resonators,” Appl. Phys. Lett. 88(22), 223501 (2006). [CrossRef]
  3. M. Sumetsky, “Optical fiber microcoil resonators,” Opt. Express 12(10), 2303–2316 (2004). [CrossRef] [PubMed]
  4. F. Xu, P. Horak, and G. Brambilla, “Conical and biconical ultra-high-Q optical-fiber nanowire microcoil resonator,” Appl. Opt. 46(4), 570–573 (2007). [CrossRef] [PubMed]
  5. X. S. Jiang, Y. Chen, G. Vienne, and L. M. Tong, “All-fiber add-drop filters based on microfiber knot resonators,” Opt. Lett. 32(12), 1710–1712 (2007). [CrossRef] [PubMed]
  6. X. S. Jiang, Q. Yang, G. Vienne, Y. H. Li, L. M. Tong, J. Zhang, and L. Hu, “Demonstration of microfiber knot laser,” Appl. Phys. Lett. 89(14), 143513 (2006). [CrossRef]
  7. X. S. Jiang, Q. H. Song, L. Xu, J. Fu, and L. M. Tong, “Microfiber knot dye laser based on the evanescent-wave-coupled gain,” Appl. Phys. Lett. 90(23), 233501 (2007). [CrossRef]
  8. Y. H. Li, G. Vienne, X. Jiang, X. Pan, X. Liu, P. Gu, and L. Tong, “Modeling rare-earth doped microfiber ring lasers,” Opt. Express 14(16), 7073–7086 (2006). [CrossRef] [PubMed]
  9. G. Vienne, Y. H. Li, L. M. Tong, and P. Grelu, “Observation of a nonlinear microfiber resonator,” Opt. Lett. 33(13), 1500–1502 (2008). [CrossRef] [PubMed]
  10. X. Guo and L. M. Tong, “Supported microfiber loops for optical sensing,” Opt. Express 16(19), 14429–14434 (2008). [CrossRef] [PubMed]
  11. F. Xu, P. Horak, and G. Brambilla, “Optical microfiber coil resonator refractometric sensor,” Opt. Express 15(12), 7888–7893 (2007). [CrossRef] [PubMed]
  12. Y. Wu, X. Zeng, C. L. Hou, J. Bai, and G. G. Yang, “A tunable all-fiber filter based on microfiber loop resonator,” Appl. Phys. Lett. 92(19), 191112 (2008). [CrossRef]
  13. X. Guo, Y. H. Li, X. S. Jiang, and L. M. Tong, “Demonstration of critical coupling in microfiber loops wrapped around a copper rod,” Appl. Phys. Lett. 91(7), 073512 (2007). [CrossRef]
  14. D. J. J. Hu, P. Shum, C. Lu, X. Sun, G. B. Ren, X. Yu, and G. H. Wang, “Design and analysis of thermally tunable liquid crystal filled hybrid photonic crystal fiber coupler,” Opt. Commun. 282(12), 2343–2347 (2009). [CrossRef]
  15. Y. H. Huang, Y. Zhou, C. Doyle, and S. T. Wu, “Tuning the photonic band gap in cholesteric liquid crystals by temperature-dependent dopant solubility,” Opt. Express 14(3), 1236–1242 (2006). [CrossRef] [PubMed]
  16. L. Song, W. K. Lee, and X. S. Wang, “AC electric field assisted photo-induced high efficiency orientational diffractive grating in nematic liquid crystals,” Opt. Express 14(6), 2197–2202 (2006). [CrossRef] [PubMed]
  17. A. Fratalocchi, R. Asquini, and G. Assanto, “Integrated electro-optic switch in liquid crystals,” Opt. Express 13(1), 32–37 (2005). [CrossRef] [PubMed]
  18. H. T. Dai, Y. J. Liu, X. W. Sun, and D. Luo, “A negative-positive tunable liquid-crystal microlens array by printing,” Opt. Express 17(6), 4317–4323 (2009). [CrossRef] [PubMed]
  19. V. Y. Zyryanov, S. A. Myslivets, V. A. Gunyakov, A. M. Parshin, V. G. Arkhipkin, V. F. Shabanov, and W. Lee, “Magnetic-field tunable defect modes in a photonic-crystal/liquid-crystal cell,” Opt. Express 18(2), 1283–1288 (2010). [CrossRef] [PubMed]
  20. F. L. Zhang, L. Kang, Q. Zhao, J. Zhou, X. P. Zhao, and D. Lippens, “Magnetically tunable left handed metamaterials by liquid crystal orientation,” Opt. Express 17(6), 4360–4366 (2009). [CrossRef] [PubMed]
  21. P. V. Shibaev, R. L. Sanford, D. Chiappetta, V. Milner, A. Genack, and A. Bobrovsky, “Light controllable tuning and switching of lasing in chiral liquid crystals,” Opt. Express 13(7), 2358–2363 (2005). [CrossRef] [PubMed]
  22. U. A. Hrozhyk, S. V. Serak, N. V. Tabiryan, and T. J. Bunning, “Photoinduced isotropic state of cholesteric liquid crystals: novel dynamic photonic materials,” Adv. Mater. (Deerfield Beach Fla.) 19(20), 3244–3247 (2007). [CrossRef]
  23. U. A. Hrozhyk, S. V. Serak, N. V. Tabiryan, and T. J. Bunning, “Optical tuning of the reflection of cholesterics doped with azobenzene liquid crystals,” Adv. Funct. Mater. 17(11), 1735–1742 (2007). [CrossRef]
  24. V. K. S. Hsiao and C. Y. Ko, “Light-controllable photoresponsive liquid-crystal photonic crystal fiber,” Opt. Express 16(17), 12670–12676 (2008). [PubMed]
  25. V. K. S. Hsiao, Z. Li, Z. Chen, P. C. Peng, and J. Y. Tang, “Optically controllable side-polished fiber attenuator with photoresponsive liquid crystal overlay,” Opt. Express 17(22), 19988–19995 (2009). [CrossRef] [PubMed]
  26. L. Tong and M. Sumetsky, Subwavelength and Nanometer Diameter Optical Fiber (Springer-Verlag GmbH 2009).
  27. T.-J. Wang, C.-H. Chu, and C.-Y. Lin, “Electro-optically tunable microring resonators on lithium niobate,” Opt. Lett. 32(19), 2777–2779 (2007). [CrossRef] [PubMed]
  28. B. Maune, R. Lawson, C. Gunn, A. Scherer, and L. Dalton, “Electrically tunable ring resonators incorporating nematic liquid crystals as cladding layers,” Appl. Phys. Lett. 83(23), 4689–4691 (2003). [CrossRef]
  29. S.-T. Wu, C.-S. Hsu, and K.-F. Shyu, “High birefringence and wide nematic range bis-tolane liquid crystals,” Appl. Phys. Lett. 74(3), 344–346 (1999). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

Figures

Fig. 1 Fig. 2 Fig. 3
 
Fig. 4 Fig. 5
 

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited