Compact polarization rotator based on slotted optical waveguide with buffer layer using surface plasmon polariton

Kim, Hong-Seung; Lee, Tae-Kyeong; Oh, Geum-Yoon; Lee, Byeong-Hyeon; Kim, Doo-Gun; Choi, Young‐Wan

doi:10.1117/12.2005135

Cited by 3 publications

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“…Besides, in the directly coupled devices, the propagating modes can be made to be drastically different, so that a high birefringence, and thus, a further reduced device length are obtained. There are recent advances in hybrid plasmon‐based polarization rotators , however, the device that offers an ultrashort device length at a reasonably low insertion loss is still out of reach. The best device so far achieved rotation at a device length of 3.2 μm and an insertion loss of ∼1.38 dB .…”

Section: Introductionmentioning

confidence: 99%

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Ultracompact Si slot waveguide‐based polarization rotators

Tran

Kim

2015

Micro & Optical Tech Letters

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A novel silicon asymmetric tilted slot waveguide‐based polarization rotator is presented. A large birefringence in the silicon slot waveguide facilitated a compact polarization rotator of subwavelength scale. A 1287 nm long TM to TE and TE to TM polarization rotator was achieved with an extinction ratio of 10 dB and an insertion loss of less than 5 dB at an operating wavelength of 1500 nm. Further performance improvement is possible for polarization rotator designed to work on TM to TE (or TE to TM) conversion: a 711 nm long TM to TE polarization rotator with 9.25 dB extinction ratio and 2.2dB insertion loss was also numerically demonstrated. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:779–785, 2015

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Section: Introductionmentioning

confidence: 99%

“…In , a TM to TE polarization rotator was designed at 3 μm long and 11 dB extinction ratio, but with very high insertion loss of 10 dB. In , loss compensator is required, in , nonlinear material is needed, and the device length is relatively long (∼6 μm). In , very short conversion length was achieved.…”

Section: Introductionmentioning

confidence: 99%