Crosstalk-Enhanced DOS Integrated with Modified Radiation-Type Attenuators

ETRI Journal

关键词: Y-branch;    radiation;    optical crosstalk;    attenuator;    digital optical switch (DOS);    thermo-optic;    Polymer;   

Others  :  1185648
DOI  :  10.4218/etrij.08.0208.0149

【 摘 要 】

This letter presents a crosstalk-enhanced polymer thermo-optic digital optical switch operating at a low power consumption. Modified radiation-type attenuators are integrated in a series with a conventional 12 digital optical switch. A low optical crosstalk of less than -45 dB is attained at a low applied switching power of 60 mW, and an insertion loss of about 1.1 dB is exhibited.

   

【 参考文献 】

• [1]N. Keil et al., "Polymer Waveguide Optical Switch with < -40 dB Polarization Independent Crosstalk," Electron. Lett., vol. 32, no. 7, Mar. 1996, pp. 655-657.
• [2]Y. Hida et al., "Polymer Waveguide Thermooptic Switch with Low Electric Power Consumption at 1.3 μm," IEEE Photon. Technol. Lett., vol. 5, no. 7, July 1993, pp. 782-784.
• [3]H.P. Chan et al., "A Wide-Angle X-Junction Polymeric Thermooptic Digital Switch with Low Crosstalk," IEEE Photon. Technol. Lett., vol. 15, no. 9, Sept. 2003, pp. 1210-1212.
• [4]S.-S. Lee et al., "Polarisation-Insensitive Digital Optical Switch Using an Electro-optic Polymer Rib Waveguide," Electron. Lett., vol. 33, no. 4, Feb. 1997, pp. 314-316.
• [5]U. Siebel et al., "Polymer Digital Optical Switch with an Integrated Attenuator," IEEE Photon. Technol. Lett., vol. 13. no. 9, Sept. 2001, pp. 957-959.
• [6]M.-S. Yang et al., "Very Low Crosstalk 1´2 Digital Optical Switch Integrated with Variable Optical Attenuators," Electron. Lett., vol. 37, no. 9, Apr. 2001, pp. 587-588.
• [7]Y.-O. Noh et al., "Polymer Waveguide Thermo-optic Switches with -70 dB Optical Crosstalk," Optics Communications, vol. 258, no. 1, Feb. 2006, pp. 18-22.
• [8]J.L. Wang et al., "Polymer Deformable Mirror for Optical Auto Focusing," ETRI Journal, vol. 29, no. 6, Dec. 2007, pp. 817-819.
• [9]ChemOptics Inc., http://www.chemoptics. co. kr.