FLUORINATED POLYIMIDES AND ITS APPLICATION TO OPTICAL WAVEGUIDES

2003 ◽  
Vol 406 (1) ◽  
pp. 39-49 ◽  
Author(s):  
Nobuo Miyadera ◽  
Toshihiro Kuroda ◽  
Tooru Takahashi ◽  
Rei Yamamoto ◽  
Masatoshi Yamaguchi ◽  
...  
Keyword(s):  
Optical Waveguides ◽  
Fluorinated Polyimides

Chloro-Fluorinated Polyimides for Low Loss Optical Waveguides Application

1999 ◽  
Vol 38 (Part 2, No. 11A) ◽  
pp. L1249-L1251 ◽  
Author(s):  
Kwansoo Han ◽  
Dug-Bong Kim ◽  
Woo-Hyuk Jang ◽  
Tae Hyung Rhee
Keyword(s):  
Optical Waveguides ◽  
Low Loss ◽  
Fluorinated Polyimides

Heat-resistant singlemode optical waveguides using fluorinated polyimides

1993 ◽  
Vol 29 (24) ◽  
pp. 2107 ◽  
Author(s):  
T. Matsuura ◽  
S. Ando ◽  
S. Matsui ◽  
S. Sasaki ◽  
F. Yamamoto
Keyword(s):  
Optical Waveguides ◽  
Heat Resistant ◽  
Fluorinated Polyimides

Single-mode optical waveguides fabricated from fluorinated polyimides

1998 ◽  
Vol 37 (6) ◽  
pp. 1032 ◽  
Author(s):  
Junya Kobayashi ◽  
Tohru Matsuura ◽  
Shigekuni Sasaki ◽  
Tohru Maruno
Keyword(s):  
Optical Waveguides ◽  
Single Mode ◽  
Fluorinated Polyimides

Low-loss Polymer Optical Waveguides with High Thermal Stability

2001 ◽  
Vol 708 ◽  
Author(s):  
Jae-Wook Kang ◽  
Jae-Pil Kim ◽  
Won-Young Lee ◽  
Joon-Sung Kim ◽  
Jae-Suk Lee ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Refractive Index ◽  
Optical Waveguides ◽  
High Thermal Stability ◽  
Propagation Loss ◽  
Copolymer Composition ◽  
Infrared Communication ◽  
Arylene Ether ◽  
Fluorinated Polyimides ◽  
Channel Waveguides

ABSTRACTWe synthesized novel cross-linkable fluorinated copoly(arylene ether sulfide)s for optical waveguide applications, which have high thermal stability, high optical transparency in the infrared communication region, and much smaller birefringence than other thermally stable fluorinated polyimides. The refractive index of the material can be easily controlled from 1.515 to 1.587 by changing the copolymer composition in the materials. The birefringence of the cured polymers were 0.0031∼0.0039 at the wavelength of 1.55 μm. This is much lower than those of fluorinated polyimides for optical waveguides. The refractive index of fluorinated poly(arylene ether sulfide) (FPAESI) after being stored at 100 °C for 1000 hr remains almost constant demonstrating the thermal stability. The propagation loss of the channel waveguides fabricated using reactive ion etching was less than 0.4 dB/cm at the wavelength of 1.55 μm.

Low loss, heat-resistant optical waveguides using new fluorinated polyimides

1993 ◽  
Vol 29 (3) ◽  
pp. 269 ◽  
Author(s):  
T. Matsuura ◽  
S. Ando ◽  
S. Sasaki ◽  
F. Yamamoto
Keyword(s):  
Optical Waveguides ◽  
Low Loss ◽  
Heat Resistant ◽  
Fluorinated Polyimides

Heat-resistant flexible-film optical waveguides from fluorinated polyimides

1999 ◽  
Vol 38 (6) ◽  
pp. 966 ◽  
Author(s):  
Tohru Matsuura ◽  
Junya Kobayashi ◽  
Shinji Ando ◽  
Tohru Maruno ◽  
Shigekuni Sasaki ◽  
...  
Keyword(s):  
Optical Waveguides ◽  
Heat Resistant ◽  
Flexible Film ◽  
Fluorinated Polyimides

Polymeric Optical Waveguides using Fluorinated Polyimides

2000 ◽  
Vol 349 (1) ◽  
pp. 71-74 ◽  
Author(s):  
Kwansoo Han ◽  
Kyounghee You ◽  
Enji Kim ◽  
Junghee Kim ◽  
Woo-Hyuk Jang ◽  
...  
Keyword(s):  
Optical Waveguides ◽  
Fluorinated Polyimides

TEM characterization of proton-exchanged LiNbO3 optical waveguides

1986 ◽  
Vol 44 ◽  
pp. 480-481
Author(s):  
W. E. Lee
Keyword(s):  
Refractive Index ◽  
Benzoic Acid ◽  
Optical Waveguides ◽  
Total Internal Reflection ◽  
Index Of Refraction ◽  
Optical Measurements ◽  
Lithium Ions ◽  
Wide Channel ◽  
Tem Characterization

An optical waveguide consists of a several-micron wide channel with a slightly different index of refraction than the host substrate; light can be trapped in the channel by total internal reflection.Optical waveguides can be formed from single-crystal LiNbO3 using the proton exhange technique. In this technique, polished specimens are masked with polycrystal1ine chromium in such a way as to leave 3-13 μm wide channels. These are held in benzoic acid at 249°C for 5 minutes allowing protons to exchange for lithium ions within the channels causing an increase in the refractive index of the channel and creating the waveguide. Unfortunately, optical measurements often reveal a loss in waveguiding ability up to several weeks after exchange.

Intrinsic mode theory of tapered optical waveguides

1985 ◽  
Vol 132 (6) ◽  
pp. 314 ◽  
Author(s):  
J.M. Arnold ◽  
A. Belghoraf ◽  
A. Dendane
Keyword(s):  
Optical Waveguides ◽  
Mode Theory
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