Broadband loss-less optical thin-film depolarizing devices

Ailloud, Quentin; Zerrad, Myriam; Amra, Claude

doi:10.1364/oe.26.013264

Cited by 4 publications

(2 citation statements)

References 33 publications

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“…In this paper, we implement the Luneburg lens as a ring-based multilayer structure. Different applications have been introduced based on the interference effect in multilayer structures [29][30][31][32]. However, the interference effect diminishes considerably as the thickness of the layers become much smaller than the wavelength of the light.…”

Section: Multilayered Luneburg Lensmentioning

confidence: 99%

Coupling silica waveguides to photonic crystal waveguides through a multilayered Luneburg lens

Badri

Gilarlue

2019

J. Opt. Soc. Am. B

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We present a detailed analysis of a coupler based on the Luneburg lens to couple a silica waveguide to a photonic crystal waveguide. The dependence of coupling efficiency on the lens's truncation, cut position of the photonic crystal structure, coupler tip width, and misalignment are investigated with two-dimensional finite element method. We implement the lens with a concentric ring-based multilayer structure. We also present a method to replace layers with very narrow widths by layers of predetermined minimum widths in the structure of the lens. The coupling loss of the designed 2.7 µm-long coupler, connecting a 2.79 µm-wide silica waveguide to a photonic crystal structure with a rod-type square lattice, is lower than 0.49 dB in the C-band. The average coupling loss in the entire S, C, L, and U bands of optical communications is 0.70 dB.

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Section: Multilayered Luneburg Lensmentioning

confidence: 99%

Coupling silica waveguides to photonic crystal waveguides through a multilayered Luneburg lens

Badri

Gilarlue

2019

J. Opt. Soc. Am. B

View full text Add to dashboard Cite

show abstract

“…The analysis of the depolarization degree is generally based on the Mueller matrix [ 4 , 5 , 6 , 7 , 8 , 9 , 10 ] and coherence matrix [ 11 , 12 , 13 ]. However, the theoretical analysis method is quite complex in the case of a depolarizer with multiple structures [ 14 , 15 ]. A common type of quaternion spatial pseudo-depolarizer (dual Babinet compensator depolarizer) was analyzed in Ref.…”

Section: Introductionmentioning

confidence: 99%