Multistage polymeric lens structure in silica-waveguides for photonic functional circuits

Atsushi Tate, Takanori Suzuki, Hiroyuki Tsuda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A waveguide lens composed of multistage polymer-filled thin grooves in a silica planar lightwave circuit (PLC) is proposed and the low-loss structure is designed. Both an imaging optical system and a Fourier-Transform optical system can be configured in a PLC by use of a waveguide lens. It makes a PLC functional and its design flexible. Moreover, a focal length of a lens is tunable with large thermo-optic effect of the polymer. A concatenated lens is formed to attain a desirable focal length with low-loss. The thickness of each lens and the spacing are about 10-50 μm. The simulation showed that the radiation loss of the light propagate through 20-stage grooves filled with a polymer was only 0.868 dB when the refractive index of the polymer was 1.57, the groove width was 30 μm, and the spacing between adjacent grooves was 15 μm. For example, the single lens structure that the center thickness is 30 μm, the diameter is 300 μm, and the refractive index of the polymer was 1.57, have a focal length of 4600 μm. The focal length of 450 μm can be obtained with 20-stage concatenated lens structure. The larger numerical aperture can be realized with a polymer of higher refractive index. We have applied the concatenated lens structure to various photonic circuits including optical couplers, a variable optical attenuator.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsJ.G. Grote, T. Kaino, F. Kajzar
Pages328-335
Number of pages8
Volume5724
DOIs
Publication statusPublished - 2005
EventOrganic Photonic Materials and Devices VII - San Jose, CA, United States
Duration: 2005 Jan 242005 Jan 26

Other

OtherOrganic Photonic Materials and Devices VII
CountryUnited States
CitySan Jose, CA
Period05/1/2405/1/26

Fingerprint

Photonics
Lenses
Waveguides
Silica
lenses
photonics
silicon dioxide
waveguides
Networks (circuits)
grooves
polymers
Polymers
Refractive index
refractivity
Optical systems
spacing
Filled polymers
attenuators
numerical aperture
couplers

Keywords

  • Multistage lens
  • Optical attenuator
  • Optical coupler
  • PLC
  • Polymer
  • Silica waveguide

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Tate, A., Suzuki, T., & Tsuda, H. (2005). Multistage polymeric lens structure in silica-waveguides for photonic functional circuits. In J. G. Grote, T. Kaino, & F. Kajzar (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 5724, pp. 328-335). [52] https://doi.org/10.1117/12.589980

Multistage polymeric lens structure in silica-waveguides for photonic functional circuits. / Tate, Atsushi; Suzuki, Takanori; Tsuda, Hiroyuki.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / J.G. Grote; T. Kaino; F. Kajzar. Vol. 5724 2005. p. 328-335 52.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Tate, A, Suzuki, T & Tsuda, H 2005, Multistage polymeric lens structure in silica-waveguides for photonic functional circuits. in JG Grote, T Kaino & F Kajzar (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 5724, 52, pp. 328-335, Organic Photonic Materials and Devices VII, San Jose, CA, United States, 05/1/24. https://doi.org/10.1117/12.589980
Tate A, Suzuki T, Tsuda H. Multistage polymeric lens structure in silica-waveguides for photonic functional circuits. In Grote JG, Kaino T, Kajzar F, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 5724. 2005. p. 328-335. 52 https://doi.org/10.1117/12.589980
Tate, Atsushi ; Suzuki, Takanori ; Tsuda, Hiroyuki. / Multistage polymeric lens structure in silica-waveguides for photonic functional circuits. Proceedings of SPIE - The International Society for Optical Engineering. editor / J.G. Grote ; T. Kaino ; F. Kajzar. Vol. 5724 2005. pp. 328-335
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