Efficient design of optical delay lines based on slotted-ring resonators

Abujnah, N.A. and Letizia, Rosa and Hameed, M.F.O. and Obayya, S.S.A. (2013) Efficient design of optical delay lines based on slotted-ring resonators. IET Optoelectronics, 7 (3). pp. 63-70. ISSN 1751-8768

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In this study, a novel design of coupled-resonator optical waveguide delay line based on slotted ring resonators (SCROW) is proposed and analysed. The coupling efficiency between the resonators, which can be controlled either by changing the slot position inside the cavity or by varying the separation distance between the rings, plays an essential role in controlling both group velocity and delay time of the suggested SCROW. The simulation results are obtained using multi-resolution time domain scheme in conjunction with uniaxial perfectly matched layer boundary conditions. By introducing a slot inside the microring resonator of the suggested structure, a quality factor of about 5 × 103 and high delay time are obtained with small ring size.

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Journal Article
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IET Optoelectronics
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Deposited On:
25 Nov 2013 09:03
Last Modified:
22 Nov 2022 00:28