In-line fibre-optic intensity modulator using electro-optic polymer

Fawcett, G.; Johnstone, Walter; Andonović, Ivan; Bone, Don; Harvey, T.G.; Carter, N.; Ryan, T.G.

doi:10.1049/el:19920626

Cited by 55 publications

(6 citation statements)

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“…6. Now the shift in resonance from TM to TE polarization increase to 50 nm, in very good agreement with experimental reports [11].…”

Section: Characteristics Of Lithium Niobate Slab Devicessupporting

confidence: 91%

“…This prediction has been verified in several experimental studies which used lithium niobate (LiNbO 3 ), zinc selenide (ZnSe) and refractive index oils as planar waveguides in the coupler geometry [2], [11], [12]. Here we analyze both the symmetric slab and asymmetric slab for the LiNbO 3 case.…”

Section: Characteristics Of Lithium Niobate Slab Devicessupporting

confidence: 63%

“…The loss mechanism is found to be expansion of the input fiber mode into unbounded slab modes; only when the ridge mode solution approximates the isolated fiber mode is the transmission large. The accuracy of this model is evident in its prediction of the resonant wavelengths and bandwidths of experimentally tested devices [2], [11] The most important result of this work is the predictive nature of the model for improved device performance. As we have shown, the filter bandwidth may be reduced by increasing the slab index or by increasing the guide separation; the former clearly has a greater effect.…”

Section: Discussionmentioning

confidence: 99%

“…This result is made clearer if we consider the exact parameters of the device reported in [11]. For 1.3 m single mode fiber we have used the following parameters and m The other device parameters are m and m From a coupled-mode theory approach, one would predict a TM resonance at m using these parameters.…”

Section: Characteristics Of Lithium Niobate Slab Devicesmentioning

confidence: 99%

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Calculation of the wavelength filter properties of the fiber-slab waveguide structure using vector mode expansion

Dinleyici

Patterson

1998

J. Lightwave Technol.

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Abstract-A vectorial solution technique is applied to investigate the dispersion characteristics of the ridge modes of a waveguide structure comprising a slab and optical fiber. The power transmission characteristics of the device with respect to wavelength are calculated under various device parameters, such as slab index and fiber-slab separation. We discuss the effects of such parameters on the bandwidth and rejection of the notch filter produced by this structure.Index Terms-Optical coupling, optical fiber couplers, optical fiber devices, optical fiber filter, wavelength division multiplexing.

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“…6. Now the shift in resonance from TM to TE polarization increase to 50 nm, in very good agreement with experimental reports [11].…”

Section: Characteristics Of Lithium Niobate Slab Devicessupporting

confidence: 91%

Section: Characteristics Of Lithium Niobate Slab Devicessupporting

confidence: 63%

Section: Discussionmentioning

confidence: 99%

Section: Characteristics Of Lithium Niobate Slab Devicesmentioning

confidence: 99%

See 2 more Smart Citations

Calculation of the wavelength filter properties of the fiber-slab waveguide structure using vector mode expansion

Dinleyici

Patterson

1998

J. Lightwave Technol.

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“…This property of the coupler has been advantageously employed to realize switches, modulators and tunable filters. [1][2][3][4][5] Numerous techniques for realizing tunable fiber-to-PWG couplers have been demonstrated including employing the electrooptic effect, 1,2) thermooptic effect in the PWG 3) and mechanical sliding of the PWG. 4,5) However, to the best of our knowledge, methods for obtaining the desired resonance depth (i.e., the extinction ratio at resonance wavelength) or the desired resonance sharpness have not been reported yet.…”

Section: Introductionmentioning

confidence: 99%

Mechanically Tunable Fiber-to-Tapered Planar Waveguide Coupler

Kim¹,

Lee²,

Hwangbo³

et al. 2005

Jpn. J. Appl. Phys.

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A fiber-to-tapered planar waveguide (PWG) coupler whose resonance wavelength and depth can be mechanically tuned is proposed and demonstrated. The resonance wavelength is controlled by changing the PWG thickness, while the extinction ratio is controlled by varying the coupling length between the fiber and the PWG. The effect of PWG thickness variation along the fiber direction on the resonance sharpness is also investigated. The fabrication techniques and experimental results are presented in detail, along with a short discussion on the potential applications of the device.

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Novel Slab Model Analysis for Overlayer Deposited Bent Step‐Index Single‐Mode Fiber Half‐Couplers

Haubenreißer

Ecke

Schröter

et al. 1994

Physica Status Solidi (b)

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A Novel Slab Model (NSM) for the modal analysis of Overlayer (OL) deposited Bent Step-Index Single-Mode Fiber (BSSF) half-couplers is presented. In this NSM the BSSF is replaced by a modal equivalent slab waveguide (ESW) structure. It is shown that within the framework of the NSM the modal features of actual OL-BSSF structures can be described more correctly and consistently on the basis ofequivalent OL-ESW structures. A perturbation method is developed to analyze modal properties of such OL-ESW structures analytically. Our modal analysis comprises all hitherto investigated evanescent fiber-optic devices based on OL-BSSF structures. Es wird ein neuartiges Planar-Modell (NSM) zur modalen Analyse von beschichteten (OL) und gekriimmten Stufen-Index-Monomode-Faser(BSSF)-Schliff-Koppler-Halften vorgestellt. In diesemNSM wird die BSSF durch die einer modal aquivalenten planaren Wellenleiter (ESW)-Struktur ersetzt. Im Rahmen dieses NSM wird gezeigt, dal3 die modalen Charakteristika realer OL-BSSF-Strukturen durch die von aquivalenten OL-ESW-Strukturen korrekter und konsistenter beschrieben werden konnen. Es wird eine storungstheoretische Methode entwickelt, um die modalen Eigenschaften solcher OL-ESW-Strukturen analytisch zu analysieren. In dieser modalen Analyse werden alle bisher untersuchten evaneszenten faseroptischen Bauelemente einbezogen, die auf OL-BSSF-Strukturen basieren. I )

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In-line fibre-optic intensity modulator using electro-optic polymer

Cited by 55 publications

References 0 publications

Calculation of the wavelength filter properties of the fiber-slab waveguide structure using vector mode expansion

Calculation of the wavelength filter properties of the fiber-slab waveguide structure using vector mode expansion

Mechanically Tunable Fiber-to-Tapered Planar Waveguide Coupler

Novel Slab Model Analysis for Overlayer Deposited Bent Step‐Index Single‐Mode Fiber Half‐Couplers

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