Low loss channel waveguides in polymers

1989 ◽  
Vol 7 (10) ◽  
pp. 1445-1453 ◽  
Author(s):  
B.L. Booth
Keyword(s):  
Low Loss ◽  
Channel Waveguides

Polymer channel waveguides with low loss at 1.3 μm

1991 ◽  
Vol 27 (15) ◽  
pp. 1342 ◽  
Author(s):  
S. Imamura ◽  
R. Yoshimura ◽  
T. Izawa
Keyword(s):  
Low Loss ◽  
Channel Waveguides

scholarly journals Channel Waveguides in Lithium Niobate and Lithium Tantalate

2020 ◽  
Author(s):  
Yi Lu ◽  
Benjamin Johnston ◽  
Peter Dekker ◽  
Michael Withford ◽  
Judith M. Dawes
Keyword(s):  
Liquid Phase ◽  
Lithium Niobate ◽  
Liquid Phase Epitaxy ◽  
Second Harmonic ◽  
Lithium Tantalate ◽  
Nonlinear Frequency ◽  
Low Loss ◽  
Frequency Converters ◽  
Channel Waveguides ◽  
Photonic Waveguides

Low-loss photonic waveguides in lithium niobate offer versatile functionality as nonlinear frequency converters, switches, and modulators for integrated optics. Combining the flexibility of laser processing with liquid phase epitaxy we have fabricated and characterized lithium niobate channel waveguides on lithium niobate and lithium tantalate. We used liquid phase epitaxy with K2O flux on laser-machined lithium niobate and lithium tantalate substrates. The laser-driven rapid-prototyping technique can be programmed to give machined features of various sizes, and liquid phase epitaxy produces high quality single-crystal, lithium niobate channels. The surface roughness of the lithium niobate channels on a lithium tantalate substrate was measured to be 90 nm. The lithium niobate channel waveguides exhibit propagation losses of 0.26 ± 0.04 dB/mm at a wavelength of 633 nm. Second harmonic generation at 980 nm was demonstrated using the channel waveguides, indicating that these waveguides retain their nonlinear optical properties.

scholarly journals Channel Waveguides in Lithium Niobate and Lithium Tantalate

Molecules ◽  
2020 ◽  
Vol 25 (17) ◽  
pp. 3925
Author(s):  
Yi Lu ◽  
Benjamin Johnston ◽  
Peter Dekker ◽  
Michael J. Withford ◽  
Judith M. Dawes
Keyword(s):  
Liquid Phase ◽  
Lithium Niobate ◽  
Liquid Phase Epitaxy ◽  
Second Harmonic ◽  
Lithium Tantalate ◽  
Nonlinear Frequency ◽  
Low Loss ◽  
Frequency Converters ◽  
Channel Waveguides ◽  
Photonic Waveguides

Low-loss photonic waveguides in lithium niobate offer versatile functionality as nonlinear frequency converters, switches, and modulators for integrated optics. Combining the flexibility of laser processing with liquid phase epitaxy we have fabricated and characterized lithium niobate channel waveguides on lithium niobate and lithium tantalate. We used liquid phase epitaxy with K2O flux on laser-machined lithium niobate and lithium tantalate substrates. The laser-driven rapid-prototyping technique can be programmed to give machined features of various sizes, and liquid phase epitaxy produces high quality single-crystal, lithium niobate channels. The surface roughness of the lithium niobate channels on a lithium tantalate substrate was measured to be 90 nm. The lithium niobate channel waveguides exhibit propagation losses of 0.26 ± 0.04 dB/mm at a wavelength of 633 nm. Second harmonic generation at 980 nm was demonstrated using the channel waveguides, indicating that these waveguides retain their nonlinear optical properties.

Low-loss high-silica single-mode channel waveguides

1986 ◽  
Vol 22 (6) ◽  
pp. 321 ◽  
Author(s):  
N. Takato ◽  
M. Yasu ◽  
M. Kawachi
Keyword(s):  
Single Mode ◽  
Low Loss ◽  
Channel Waveguides ◽  
High Silica

Advanced Ti-Implanted Optical Waveguides in LiNbO3

1986 ◽  
Vol 88 ◽  
Author(s):  
Ch. Buchal ◽  
P. R. Ashley ◽  
D. K. Thomas ◽  
B. R. Appleton
Keyword(s):  
Low Temperatures ◽  
Optical Waveguides ◽  
Crystalline State ◽  
Solid Phase ◽  
Equilibrium Phase ◽  
Planar Waveguides ◽  
Solid Phase Epitaxy ◽  
Low Loss ◽  
Versatile Technique ◽  
Channel Waveguides

ABSTRACTLiNbO3 is the best substrate for modulators and switches for integrated optics. Efficient low loss waveguides for light in LiNbO3 are formed by introducing Ti-ions into its lattice, thus increasing locally the ordinary and the extraordinary indices of refraction. We are the first to use the very versatile technique of ion-implantation to administer Ti into LiNbO3. This implantation process offers the possibility to introduce significantly more Ti into a well-defined volume than conventional diffusion techniques. During this process first an amorphous non-equilibrium phase is generated, which has to be kept at low temperatures in order to prevent segregation. Subsequent thermal treatment leads to solid phase epitaxy and restores the desired stable crystalline state. We have used this technique to fabricate excellent planar waveguides, channel waveguides and Mach-Zehnder modulators.

Low-loss Cu+-Na+ ion exchanged optical channel waveguides in glass

2004 ◽  
Vol 40 (20) ◽  
pp. 1265 ◽  
Author(s):  
M. Yin ◽  
R. Oven ◽  
P.A. Davies
Keyword(s):  
Optical Channel ◽  
Low Loss ◽  
Channel Waveguides

Organic channel waveguides with low loss at 1.3 µm

1991 ◽  
Author(s):  
Saburo Imamura ◽  
Ryoko Yoshimura ◽  
Tatsuo Izara
Keyword(s):  
Low Loss ◽  
Channel Waveguides
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