Proton-exchanged periodically segmentedchannel waveguides in lithium niobate

Nir, D.; Ruschin, S.; Hardy, A.; Brooks, David J.

doi:10.1049/el:19950111

Cited by 6 publications

(2 citation statements)

References 9 publications

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“…Design procedures and software tools for designing ion exchange waveguides have been published [32]. Ion exchange waveguides have been used to make a variety of devices, including an add/drop filter [33], an arrayed-waveguide grating multi/demultiplexer [34] and a periodically segmented waveguide [35]. …”

Section: Ion Exchange and Migrationmentioning

confidence: 99%

Waveguide Fabrication Techniques

Hunsperger

2009

Integrated Optics

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In Chapter 3, the theoretical considerations relevant to various types of waveguides were discussed. In every case, waveguiding depended on the difference in the index of refraction between the waveguiding region and the surrounding media. A great many techniques have been devised for producing that required index difference. Each method has particular advantages and disadvantages, and no single method can be said to be clearly superior. The choice of a specific technique of waveguide fabrication depends on the desired application, and on the facilities available. In this Chapter, various methods of waveguide fabrication are reviewed, and their inherent features are discussed.

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Section: Ion Exchange and Migrationmentioning

confidence: 99%

Waveguide Fabrication Techniques

Hunsperger

2009

Integrated Optics

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“…6 Nir et al showed that under appropriate fabrication conditions the propagation losses are not significantly increased over a similarly confining uniform waveguide. 9 With independently controllable optical confinement in both width (with physical width and segmentation duty cycle) and depth (with segmentation duty cycle), the segmented waveguide with axially varying duty cycle shown in Fig. 1 is a practical method to make tapered waveguides.…”

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confidence: 99%

Adiabatically tapered periodic segmentation of channel waveguides for mode-size transformation and fundamental mode excitation

1996

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We report modeling, fabrication, and characterization of tapered waveguides, using periodically segmented annealed proton exchange in LiNbO(3). For a taper transforming the 1/e full width (intensity) mode size from 6.0 microm x 4.4 microm to 2.0 microm x 1.3 microm, 0.4-dB excess loss was observed. The large, slightly elliptical mode can ease coupling to single-mode fibers and circular free-space beams. The same taper structure was used to excite a highly multimoded (13 modes) waveguide with more than 95% of the power stably launched into the lowest-order mode. This function is useful for nonlinear waveguide devices, such as difference-frequency generators, in which modes at highly disparate wavelengths interact.

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Waveguide Fabrication Techniques

Hunsperger¹

2002

Advanced Texts in Physics

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Proton-exchanged periodically segmentedchannel waveguides in lithium niobate

Cited by 6 publications

References 9 publications

Waveguide Fabrication Techniques

Waveguide Fabrication Techniques

Adiabatically tapered periodic segmentation of channel waveguides for mode-size transformation and fundamental mode excitation

Waveguide Fabrication Techniques

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