Broad-band optical directional couplers and polarization splitters

Hereth, R.; Schiffner, G.

doi:10.1109/50.32360

Cited by 27 publications

(16 citation statements)

References 10 publications

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“…So the only way to minimize the wavelength sensitivity is by a convenient choice of the waveguides and of their distance 18 .…”

Section: /50 Splittersmentioning

confidence: 99%

Wavelength-flattened directional couplers: a geometrical approach

Cherchi¹

2003

Appl. Opt.

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A new approach to design a wavelength-insensitive optical power splitter is presented. First, a coupled-mode theory is cast in operatorial form. This allows us to solve the equivalent of coupled differential equations as simple limits. The operators are then represented on a generalized Poincaré sphere, and the resulting graphical tool is applied to different structures, giving a clear interpretation of previous results in literature as well as hints on how to find improved solutions.

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“…So the only way to minimize the wavelength sensitivity is by a convenient choice of the waveguides and of their distance 18 .…”

Section: /50 Splittersmentioning

confidence: 99%

Wavelength-flattened directional couplers: a geometrical approach

Cherchi¹

2003

Appl. Opt.

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“…The transfer matrix Μ in (1), which describes the behavior of the directional coupler switches, including the coupling in the taper regions, is given by…”

Section: Journal Of Optical Communkattonsmentioning

confidence: 99%

“…It is no more to be justified. However, the switching behavior of these devices, which are inherently wavelength sensitive [1][2][3]5], relys on mode interference. If the wavelength variation of the laser is comparable to the sensitivity of the directional couplers, the expected performance cannot be always guaranteed.…”

Section: Introductionmentioning

confidence: 99%

Effect of the Transition Region on Wavelength Sensitivity of Directional Coupler Switches

Hwang¹,

Lee²

1998

Journal of Optical Communications

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The effect of the coupling in the input and output transition regions is considered in this analysis. Based on the numerical results, some salient features of the dispersively induced crosstalk of directional coupler switches are demonstrated and discussed in detail. More extensive studies are given to evaluate the effect of the coupler parameters on wavelenght sensitivity of directional coupler switches and to establish useful guidelines for design of the switches.

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“…Multicore optical fiber technology is also a powerful way for achieving novel optical components such as broadband directional couplers [3], narrow-band fiber filters [4], variable fiber attenuators [5], two-dimensional bending sensors [6], fiber lasers and amplifiers [7,8], and dispersion compensators [9]. For these applications, due to the rigid core/cladding physical structure, the fiber geometry is static, i.e., relative core-to-core movement is not possible.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of multiple parallel suspended-core optical fibers by sheet-stacking

Shi

Feng

White

et al. 2014

Optical Fiber Technology

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We demonstrate the fabrication of a novel type of optical fibers with multiple parallel airsuspended cores by the sheet-stacking method. Using this technique we have constructed optical fibers with up to 10 parallel micron-size suspended cores. No extra scattering loss from the fabrication process was observed in a fabricated dual air-suspended core fiber. The sheetstacking method opens the way towards using a wide range of optical glasses for manufacturing multiple parallel suspended-core specialty optical fibers with novel optical functionalities such as dispersion tunability. Fusion splicing has also been successfully used to connect such a multiple core fiber with a conventional silica fiber.

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Broad-band optical directional couplers and polarization splitters

Cited by 27 publications

References 10 publications

Wavelength-flattened directional couplers: a geometrical approach

Wavelength-flattened directional couplers: a geometrical approach

Effect of the Transition Region on Wavelength Sensitivity of Directional Coupler Switches

Fabrication of multiple parallel suspended-core optical fibers by sheet-stacking

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