Integrated-optic polarisation convertor on (001)-InP substrate

Schlak, M.; Nolting, H.-P.; Albrecht, P.; Döldissen, W.; Franke, D.; Niggebrugge, U.; Schmitt, Felix

doi:10.1049/el:19860602

Cited by 23 publications

(2 citation statements)

References 4 publications

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“…25) A polyimide half-wave plate is inserted into a groove fabricated in the waveguide as the π=4-rad reciprocal polarization rotator. 8,9) As a waveguide-type device, a reciprocal polarization rotator can be realized through an electro-optic effect, 26) using a rib waveguide with a periodically asymmetric cross-section, 27) or by operating in a hybrid supermode. 28) Because the Cotton-Mouton effect 5,6) is not necessarily required for the reciprocal polarization rotator, the complicated control of the direction of the magnetization is no longer burdensome.…”

Section: Introductionmentioning

confidence: 99%

Design of polarization rotators in TE–TM mode conversion optical isolator with Ce:YIG guiding layer

Okada

Tamura

Kobayashi

et al. 2015

Jpn. J. Appl. Phys.

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An optical isolator with a (CeY) 3 Fe 5 O 12 guiding layer employing TE-TM mode conversion was investigated. The optical isolator consisted of a nonreciprocal polarization rotator and a reciprocal polarization rotator. The reciprocal polarization rotator was realized by inserting a polyimide halfwave plate into a groove in the magnetooptic waveguide. Propagation distances required for the nonreciprocal polarization rotator were calculated at a wavelength of 1.55 µm. Diffraction loss due to the insertion of the half-wave plate was also calculated. The reciprocal polarization rotator integrated with a spot-size converter was proposed for suppressing the diffraction loss. By introducing the spot-size converter for an input facet and an output facet of the half-wave plate, a calculated total insertion loss was reduced to 0.22 dB.

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Section: Introductionmentioning

confidence: 99%

Design of polarization rotators in TE–TM mode conversion optical isolator with Ce:YIG guiding layer

Okada

Tamura

Kobayashi

et al. 2015

Jpn. J. Appl. Phys.

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“…Electro-optic polarization converters have been fabricated by LiNbO 3 and InP waveguides. 1,2 However, passive operation is preferable for some system applications. Recently passive polarization converters have been fabricated by using a periodically tilted rib waveguide 3 and an asymmetric periodic load.…”

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confidence: 99%

Wavelength insensitive passive polarization converter fabricated by poled polymer waveguides

Shin

Hwang

et al. 1995

Applied Physics Letters

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A passive TE to TM polarization mode converter is fabricated by using poled polymer waveguides. The optic axis of the poling induced waveguide is slowly rotated 90° by using a slowly varying structure of poling electrodes. Thus the polarization conversion is achieved as the guided mode propagates through the waveguide. TE to TM mode conversion is observed with a polarization extinction ratio higher than 30 dB, and the excess loss is less than 1 dB. The polarization conversion is relatively insensitive to wavelength since the device contains no periodic structures. These devices are easier to fabricate than others containing periodic structures.

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