Propagation characteristics and loss of metal-clad graded index optical waveguides
โ Scribed by Shou Xian She; Feng Chao Xie
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 270 KB
- Volume
- 103
- Category
- Article
- ISSN
- 0030-4018
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๐ SIMILAR VOLUMES
Using Goell's point-matching method, we obtain the modal characteristic equation for metal-clad waยจeguides with cardioid-shaped cross sections haยจing different aspect ratios. For small aspect ratios, the cardioid is a good representation of a nonsymmetrical distortion of the circular cross section.
## Abstract A lowโloss wideโangle Yโjunction with gradedโindex optical waveguides which can change the optical propagation direction, is proposed. The optical power is divided equally into two branching waveguides with a wide angle. Device performance is examined numerically by the finiteโdifferenc
sion line by almost 2 โ and 0.5แ0.75 cmrns, respectively. Because the SiO layer has a significantly lower dielectric 2 constant than that of GaAs, its inclusion will result in a smaller capacitance per unit length of the CPS slow-wave electrodes. This results in an increase in the phase velocity of