By William Parr Greswell

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Additional resources for Annals of Parisian Typography, Containing an Account of the Earliest Typographical Establishments of Paris; and Notices and Illustrations, of the Most Remarkable Productions of the Parisian Gothic Press: Compiled Principally to Shew Its General Character

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Thus, the light beam diverges as in usual dielectrics for the TM polarization. 3. 7 3 8 (e) (f) Fig. 8. 4a (a is the lattice constant). 7. 7. (e, f) EFC contours of the present structure. , the direction of the group velocity). (a, c, e) for TE polarization, (b, d, f) for TM polarization. 63. 2 Fabrication Process The designed PBS was fabricated on an amorphous-silicon-on-insulator substrate as shown in Fig. 10. Silica buffer layer and α-Si:H layer were prepared successively with the PECVD technology on a silicon wafer (see Tab.

Integrated planar lightwave circuits (PLCs) overcome these disadvantages, and gradually replace the convectional bulk optical components in today’s optical communication systems, especially in dense wavelength-division multiplexing (DWDM) systems. A lot of functional photonic devices can be monolithicly integrated into one chip. The fabrication technology for PLCs is similar to that for the very matured integrated micro-electronic circuits. Thus, it is possible to perform mass production and to build high-quality devices.

11. Spectral responses from different output waveguides, (a) for OW1, (b) for OW2. the ASE source, we can see clearly the splitting of the two polarized beams (see Fig. 10(d) and (e)). The TM component of the output light mainly goes to the output waveguide OW1, while the TE component mainly goes to the output waveguide OW2. 11 shows the wavelength responses of the designed PBS from the two output waveguides (OW1 and OW2). The extinction ratio is ∼15dB in almost the whole spectrum range of the ASE source.

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