Planar 1 × 2 optical prism deflector switch fabricated on a silica waveguide

Mariko Ishida, Atsushi Tate, Kenichi Masuda, Takanori Suzuki, Hiroyuki Tsuda

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

Abstract

We propose a 1 × 2 optical prism deflector switch which consists of two parabolic waveguide mirrors, multiple-stage micro prisms filled with polymer, and input/output waveguides. This type of switch has high extinction ratio characteristics compared with the interference-type switch. The number of prisms is 20 or 30, and the vertex angle of the prism is about 0.1 rad. The prisms are so thin that the coupling loss can be reduced. The waveguide mirror is formed by depositing Ag on the side wall of the deep trench in a slab waveguide. The light from the input waveguide reflects at the parabolic mirror to be the parallel light, propagates through the prisms and reflects at the other parabolic mirror to converge on the output waveguide. The prisms have thermo-optic (TO) coefficient of-1.3 × 10-4/K while the slab waveguide has that of -6.7 × 10-6/K. Therefore, by raising the temperature around prisms, the light is deflected through the prisms and the switch is brought into the cross state. On the other hand, without rise in temperature, the light goes straight. The distance between adjacent outputs waveguides is 30μm, corresponding to the change in the temperature of 30 K. The size of devise is 4.4 mm × 8.0 mm with 20 prisms and 3.3mm × 6.5mm with 30 prisms, respectively. With 20 prisms at a wavelength of 1555 nm, a minimum insertion loss of 0.65 was measured in bar state.

Original languageEnglish
Title of host publicationProgress in Biomedical Optics and Imaging - Proceedings of SPIE
EditorsY. Sidorin, C.A. Wachter
Pages334-341
Number of pages8
Volume5728
DOIs
Publication statusPublished - 2005
EventIntegrated Optics: Devices, Materials, and Technologies IX - San Jose, CA, United States
Duration: 2005 Jan 242005 Jan 26

Other

OtherIntegrated Optics: Devices, Materials, and Technologies IX
CountryUnited States
CitySan Jose, CA
Period05/1/2405/1/26

Fingerprint

Prisms
Waveguides
Silica
Switches
Mirrors
Insertion losses
Temperature
Optics
Wavelength

Keywords

  • Optical switch
  • Prism
  • Waveguide

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Ishida, M., Tate, A., Masuda, K., Suzuki, T., & Tsuda, H. (2005). Planar 1 × 2 optical prism deflector switch fabricated on a silica waveguide. In Y. Sidorin, & C. A. Wachter (Eds.), Progress in Biomedical Optics and Imaging - Proceedings of SPIE (Vol. 5728, pp. 334-341). [48] https://doi.org/10.1117/12.590022

Planar 1 × 2 optical prism deflector switch fabricated on a silica waveguide. / Ishida, Mariko; Tate, Atsushi; Masuda, Kenichi; Suzuki, Takanori; Tsuda, Hiroyuki.

Progress in Biomedical Optics and Imaging - Proceedings of SPIE. ed. / Y. Sidorin; C.A. Wachter. Vol. 5728 2005. p. 334-341 48.

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

Ishida, M, Tate, A, Masuda, K, Suzuki, T & Tsuda, H 2005, Planar 1 × 2 optical prism deflector switch fabricated on a silica waveguide. in Y Sidorin & CA Wachter (eds), Progress in Biomedical Optics and Imaging - Proceedings of SPIE. vol. 5728, 48, pp. 334-341, Integrated Optics: Devices, Materials, and Technologies IX, San Jose, CA, United States, 05/1/24. https://doi.org/10.1117/12.590022
Ishida M, Tate A, Masuda K, Suzuki T, Tsuda H. Planar 1 × 2 optical prism deflector switch fabricated on a silica waveguide. In Sidorin Y, Wachter CA, editors, Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 5728. 2005. p. 334-341. 48 https://doi.org/10.1117/12.590022
Ishida, Mariko ; Tate, Atsushi ; Masuda, Kenichi ; Suzuki, Takanori ; Tsuda, Hiroyuki. / Planar 1 × 2 optical prism deflector switch fabricated on a silica waveguide. Progress in Biomedical Optics and Imaging - Proceedings of SPIE. editor / Y. Sidorin ; C.A. Wachter. Vol. 5728 2005. pp. 334-341
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AB - We propose a 1 × 2 optical prism deflector switch which consists of two parabolic waveguide mirrors, multiple-stage micro prisms filled with polymer, and input/output waveguides. This type of switch has high extinction ratio characteristics compared with the interference-type switch. The number of prisms is 20 or 30, and the vertex angle of the prism is about 0.1 rad. The prisms are so thin that the coupling loss can be reduced. The waveguide mirror is formed by depositing Ag on the side wall of the deep trench in a slab waveguide. The light from the input waveguide reflects at the parabolic mirror to be the parallel light, propagates through the prisms and reflects at the other parabolic mirror to converge on the output waveguide. The prisms have thermo-optic (TO) coefficient of-1.3 × 10-4/K while the slab waveguide has that of -6.7 × 10-6/K. Therefore, by raising the temperature around prisms, the light is deflected through the prisms and the switch is brought into the cross state. On the other hand, without rise in temperature, the light goes straight. The distance between adjacent outputs waveguides is 30μm, corresponding to the change in the temperature of 30 K. The size of devise is 4.4 mm × 8.0 mm with 20 prisms and 3.3mm × 6.5mm with 30 prisms, respectively. With 20 prisms at a wavelength of 1555 nm, a minimum insertion loss of 0.65 was measured in bar state.

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