Title :
Fluorinated polyimide waveguides with low polarization-dependent loss and their applications to thermooptic switches
Author :
Kobayashi, Junya ; Matsuura, Tohru ; Hida, Yasuhiro ; Sasaki, Shigekuni ; Maruno, Tohru
Author_Institution :
NTT Opto-electron. Labs., Tokyo, Japan
fDate :
6/1/1998 12:00:00 AM
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 μm and 0.6 dB/cm at 1.55 μm 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 μm, and over 150 mW at 1.55 μm. The switching speed was faster than 8 ms
Keywords :
integrated optics; optical communication equipment; optical losses; optical polymers; optical switches; optical waveguides; thermo-optical effects; 1.3 mum; 1.55 mum; 150 mW; 160 mW; TE polarizations; TM polarizations; Y-branching-type TO switches; electric power; extinction ratios; fluorinated polyimide waveguides; low polarization dependent loss; low polarization-dependent loss; switching speed; thermooptic switches; Optical devices; Optical films; Optical interferometry; Optical polymers; Optical refraction; Optical switches; Optical variables control; Optical waveguides; Polarization; Polyimides;
Journal_Title :
Lightwave Technology, Journal of
