Correspondence: Narrow band rib waveguide grating resonator filters

Yi‐Yan, A.; Correc, P.; Carru, H.

doi:10.1049/ip-j.1990.0024

Cited by 4 publications

(3 citation statements)

References 14 publications

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“…The reflectivity and the transmission of the FP waveguide structure are evaluated by a transfer matrix method similar to that used to determine the solutions of multisectional DFB structures or DBR waveguide filters [12]- [13]. It consists of dividing the device into a series of axially uniform sections.…”

Section: Fabry-perot Waveguide Interferometermentioning

confidence: 99%

“…Considering the TE polarization the dominant field component could be expressed (separating the and dependence) as a product of two 1-D functions obtained using a slab waveguide solver (12) where is given by a Gauss-Lorentz fitting procedure of the exact field profile (13) This analytical approximation gives us a simple analytical form of the Fourier transforms of the field distribution and therefore is more easy to use in a numerical simulation.…”

Section: Fabry-perot Waveguide Interferometermentioning

confidence: 99%

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Numerical simulation of a silicon-on-insulator waveguide Fabry-Perot interferometer for intensity light modulators at 1.3 μm

Vonsovici

Orobtchouk

Köster

1997

J. Lightwave Technol.

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We present a new silicon-on-insulator (SOI) integrated optics structure to be used as an intensity light modulator at 1.3 m. The device consists of a waveguide Fabry-Perot interferometer. In association with a grating coupler this device could function as a spatial light modulator or a reflective-mode modulator. The Fabry-Perot reflectivity is tuned by free-carrier injection from a forward-biased lateral P + /N 0 /N + diode. Consequently, the reflected back guided-mode has an intensity that is a function of the effective index modulation in the central waveguide of the Fabry-Perot. Our numerical simulation reveals that such a structure could function for current densities not exceeding 500 A/cm 2 , with a cutoff frequency of 100 MHz. This new type of device is compatible with the mature silicon technology and could replace in applications the standard liquidcrystal spatial light modulators or for fiber-to-the-home intensity modulators.

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Section: Fabry-perot Waveguide Interferometermentioning

confidence: 99%

Section: Fabry-perot Waveguide Interferometermentioning

confidence: 99%

Numerical simulation of a silicon-on-insulator waveguide Fabry-Perot interferometer for intensity light modulators at 1.3 μm

Vonsovici

Orobtchouk

Köster

1997

J. Lightwave Technol.

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“…Z These guides are used for a variety of purposes including the construction of filters and distributed feedback lasers [2]. Z These guides are used for a variety of purposes including the construction of filters and distributed feedback lasers [2].…”

Section: Introductionmentioning

confidence: 99%

<title>Exact numerical technique for the analysis of Bragg reflectors in integrated optical filters</title>

Fakhri¹,

Gérard

Bénech³

et al. 1997

SPIE Proceedings

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We present an exact numerical technique for analyzing Bragg reflectors. Bragg reflectors can be used as narrowband distributed feedback (DFB) reflectors that reflect at the center of the grating stopband and transmit at frequencies to either side.These reflectors can be used as highly selective pass-band filters. These reflectors can be also used as highly selective pass-band filters. Our structure that is realized by the LEAME consists of nücrocavities inserted in a waveguide suspended in air. These cavities are air voids placed periodically in a highrefractive index semiconductor material (n = 3.2). Recently Zhang et al.[1] realized a broad-band Bragg reflector by placing a 1-D array of air holes in a dielectric waveguide without taking into account the power loss in their simulation. Power loss due to radiation at abrupt discontinuities limits the performance of these microcavities. Unlike the other analytical methods no physical approximations are made throughout the entire analysis, so it may be used to analyze any periodic dielectric structure regardless of the geometry or strong discontinuities. Our exact technique uses the local normal modes of the structure (both guided and radiation modes) to form a transfer matrix for the whole structure. For this reason our method can be used to evaluate exactly the transmitted, reflected and radiated power. We will present later the result of the numerical simulations for a Bragg reflector with few steps.

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