Abstract

Fluorinated polyimide waveguides with low polarization dependent loss (PDL) and thermooptic (TO) switches made from them were demonstrated. The waveguides showed loss of less than 0.3 dB/cm at the wavelength of 1.3 \mum and 0.6 dB/cm at 1.55 \mum for both TE and TM polarizations. The PDL's were less than 0.1 dB/cm. Extinction ratios of Y-branching-type TO switches fabricated from these waveguides were larger than 20 dB when over 160 mW of electric power was applied at 1.3 \mum, and over 150 mW at 1.55 \mum. The switching speed was faster than 8 ms.

[IEEE ]

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Appl. Opt. (3)

J. Lightwave Technol. (5)

J. Kobayashi, T. Matsuura, S. Sasaki, and T. Maruno, "Directional couplers using fluorinated polyimide waveguides," J. Lightwave Technol., vol. 16, pp. 610-614, Apr. 1998.

M. N. J. Diemeer, J. J. Brons, and E. S. Trommel, "Polymeric optical waveguide switch using the thermooptic effect," J. Lightwave Technol., vol. 7, pp. 449-453, 1989.

B. L. Booth, "Low loss channel waveguides in polymers," J. Lightwave Technol., vol. 7, pp. 1445-1453, 1989.

S. Suzuki, M. Yanagisawa, Y. Hibino, and K. Oda, "High-density integrated planar lightwave circuits using SiO2-GeO2 waveguides with a high refractive index difference," J. Lightwave Technol., vol. 12, pp. 790-796, 1994.

N. Takato, K. Jinguji, M. Yasu, H. Toba, and M. Kawachi, "Silica-based single-mode waveguides on silicon and their application to guided-wave optical interferometers," J. Lightwave Technol., vol. 6, pp. 1003-1010, 1988.

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