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Modulation is achieved through free-carrier absorption, not interference effects, enabling operation over the entire bandwidth of the waveguide.
In this structure, the frequency bandwidth for which the transmission coefficient is greater than 0.9 covers 84% of the single-mode bandwidth of the waveguide, while for the best geometry reported in the literature this value does not exceed 56%.
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Compared with the previously proposed addressing scheme, the new schemes significantly improve the utilization of the bandwidth of optical waveguides and the scalability of a TDM optical bus.
This architecture has two drawbacks: the bandwidth of address waveguides is wasted and the scalability of the bus is limited due to the unary addressing.
A method to increase the bandwidth of long-period waveguide gratings (LPWGs) is proposed using linearly tapered cladding profile and large coupling constant.
In this paper, we design resonant reflection grating filters employing the second diffracted orders as the leaky modes, then analyze the bandwidth of the reflection peak and the electric field distributions inside the waveguide under resonance.
The simulated fabrication tolerance for the variation of the waveguide width is about 100 nm and the bandwidth is about 65 nm when the extinction ratio is higher than 10 dB.
By engineering the structural parameters of the waveguide, an ultra-flat dispersion profile with a total dispersion variation of 10 (ps/nm/km) over a wide bandwidth of 1615 nm is obtained.
The corrugated waveguides are used to ensure the bandwidth of the transmission systems.
For the calculation of the waveguide loss in a double-metal structure, we make use of a one-dimensional waveguide solver based on a standard transfer-matrix formalism.
The thickness of the waveguide was fixed.
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