Reconfigurable optical multiplexer based on liquid crystals for polymer optical fiber networks
10.2478/s11772-006-0042-9 Cite this article as: Lallana, P.C., Vázquez, C., Pena, J.M.S. et al. Opto-Electron. Rev. (2006) 14: 311. doi:10.2478/s11772-006-0042-9 Abstract
In this work, different novel 3×1 multiplexer structures for being used in polymer optical fiber networks are proposed. Designs are compact, scalable, and of low consumption, capable of operating in a large wavelength range simultaneously 660, 850, and 1300 nm, due to the use of nematic liquid crystal cells. Light that comes from each input port is handled independently and eight operation modes are possible.
Control electronics has been made using a programmable integrated circuit. Electronic system makes available the managing of the optical stage using a computer. An additional four optical sensors have been included for allowing the optical status checking.
Finally, a polarization independent multiplexer has been implemented and tested. Insertion losses less than 4 dB and isolation better than 23 dB have been measured. In addition, 30-ms and 15-ms setup and rise times have been obtained. The proposed multiplexer can be used in any polymer optical fiber network, even in perfluorinated graded index one, and it can be specially useful in optical sensor networks, or in coarse wavelength division multiplexing networks.
Keywords multiplexer liquid crystals polymer optical fiber coarse wavelength division multiplexing References
M. Yonemura, A. Kawasaki, S. Kato, M. Kagami, and Y. Inui, “Polymer waveguide module for visible wavelength division multiplexing plastic optical fiber communication”,
, 2206–2208 (2005).
Y. Zhang, H. Ma, T. Zhang, Z. Wang, D. Wang, R. Zheng, H. Yang, and H. Ming, “Study of coarse wavelength division multiplexing using polymer optical fiber transmission window”, Proc. SPIE
, 835–839 (2005).
T. Kibler, S. Poerl, G. Böck, H.P. Huber, and E. Zeeb, “Optical data buses for automotive applications,”
J. Lightwave Technol.
, 2184–2199 (2004).
S.F. Knowles, B.E. Jones, S. Purdy, and C.M. France, “Multiple microbending optical-fiber sensor for measurements of fuel quantity in aircraft fuel tanks”,
, 320–323 (1998).
C. Vázquez, A.B. Gonzalo, S. Vargas, and J. Montalvo, “Multi-sensor system using plastic optical fibers for intrinsically safe level measurement,”
, 22–32 (2004).
J. Goudeau, G. Widawski, and B. Bareel, “GI-POF for GB Ethernet links,”
th Int. Plastic Optical Fibres Conf.
Y. Koike and T. Ishigure, “High-speed, low-loss polymer optical fibers”,
EEP 25, Workshop on Mechanical Reliability of Polymeric Materials and Plastic Packages of IC Devices. ASME, 19–29 (1998).
C. Marxer and N.F. De Rooij, “Micro-op-mechanical 2×2 switch for single-mode fibers based on plasma-etched silicon mirror and electrostatic actuation”,
J. Lightwave Techn.
, 2–6 (1999).
R.A. Jensen, “Comparing of optical switching technologies for intelligent optical networks”,
LEOS’02, Vol. I, 230–231 (2002).
M.I. Bhuiyan, Y. Haga, and M. Esashi, “Design and characteristics of large displacement optical fiber switch”,
J. Quantum Electronics
, 242–249 (2005).
R.A. Soref, “Low-cross-talk 2×2 optical switch”, Optics Lett.
, 275–277 (1981).
N. Riza and S. Yuan, “Low optical interchannel crosstalk, fast switching speed, polarization independent 2×2 fibre optic switch using ferroelectric liquid crystals”,
, 1341–1342 (1998).
Y. Fujii, “Low-crosstalk 2×2 optical switch composed of twisted nematic liquid crystal cells”,
IEEE Photonics Technology Letters
, 715–718 (1993).
S. Sumriddetchkajorn, N. Riza, and D. Sengupta, “Liquid crystal-based self-aligning 2×2 wavelength routing module”,
, 1521–1528 (2001).
N.A. Riza “High-optical isolation low-loss moderate-switching-speed nematic liquid-crystal optical switch”,
, 1780–1782 (1994).
C. Vázquez, J.M.S. Pena, and A.L. Aranda, “Broadband 1×2 polymer optical fiber switches using nematic liquid crystals”,
, 57–62 (2003).
F. Pain, R. Coquillé, B. Vinouze, N. Wolffer, and P. Gravey, “Comparison of twisted and parallel nematic liquid crystal polarisation controllers. Applications to a 4×4 free space optical switch at 1.5 mm”,
, 199–204 (1997).
A. Riza and S. Yuan, “Reconfigurable wavelength add-drop filtering based on a banyan network topology and ferroelectric liquid crystal fiber-optic switches”,
J. Light Tech. Lett.
, 1575–1584 (1999).
CrossRef ADS Copyright information
© Association of Polish Electrical Engineers 2006