Integrated optical cross strip interferometer

Manfred Lohmeyer, Remco Stoffer, Ludger Wilkens, Horst Dötsch

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

A thick, bimodal segment of specific length and height between two single mode sections of a planar waveguide can serve as an integrated optical interferometer. It is realized by etching a wide strip form a guiding film. A vertically guided, laterally unguided beam of light is then made to traverse the strip perpendicularly. For a wide range of materials the structure can be dimensioned such that it shows the proper behavior of an interferometer: depending on the phase gain of the two modes in the thick region, the guided light interferes either almost completely destructively at the transition to the output segment, i.e. the power is radiated away into the substrate and cover regions, or constructively, i.e. most of the power passes the device. We believe that for certain applications structures of this kind can be a simple substitute for instruments like Mach-Zehnder interferometers or directional couplers. This is illustrated by two numerically simulated examples: A polarizer constructed from silicon based waveguides, which offers 30 dB polarization discrimination and 0.1 dB insertion loss with a total length of only 10 micrometers, and a proposal for an integrated magneto optic isolator experiment, where the freedom in the lateral direction can be exploited for a proper tuning of the device.
Original languageEnglish
Title of host publicationIntegrated Optics Devices V
EditorsGiancarlo C. Righini, Seppo Honkanen
Place of PublicationBellingham, WA
PublisherSPIE
Pages230-241
ISBN (Print)0-8134-3955-X
DOIs
Publication statusPublished - 20 Jan 2001
EventSPIE Symposium on Integrated Optics 2001 - San Jose, United States
Duration: 20 Jan 200126 Jan 2001

Publication series

NameProceedings of SPIE
PublisherSPIE
Volume4277

Conference

ConferenceSPIE Symposium on Integrated Optics 2001
CountryUnited States
CitySan Jose
Period20/01/0126/01/01

Fingerprint

strip
interferometers
waveguides
isolators
directional couplers
magneto-optics
Mach-Zehnder interferometers
polarizers
insertion loss
couplers
discrimination
proposals
micrometers
tuning
etching
substitutes
output
silicon
polarization

Keywords

  • METIS-200500
  • EWI-13970
  • IR-65083
  • polarizer device
  • magnetooptic isolator
  • waveguide interferometer
  • Integrated Optics

Cite this

Lohmeyer, M., Stoffer, R., Wilkens, L., & Dötsch, H. (2001). Integrated optical cross strip interferometer. In G. C. Righini, & S. Honkanen (Eds.), Integrated Optics Devices V (pp. 230-241). (Proceedings of SPIE; Vol. 4277). Bellingham, WA: SPIE. https://doi.org/10.1117/12.426799
Lohmeyer, Manfred ; Stoffer, Remco ; Wilkens, Ludger ; Dötsch, Horst. / Integrated optical cross strip interferometer. Integrated Optics Devices V. editor / Giancarlo C. Righini ; Seppo Honkanen. Bellingham, WA : SPIE, 2001. pp. 230-241 (Proceedings of SPIE).
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title = "Integrated optical cross strip interferometer",
abstract = "A thick, bimodal segment of specific length and height between two single mode sections of a planar waveguide can serve as an integrated optical interferometer. It is realized by etching a wide strip form a guiding film. A vertically guided, laterally unguided beam of light is then made to traverse the strip perpendicularly. For a wide range of materials the structure can be dimensioned such that it shows the proper behavior of an interferometer: depending on the phase gain of the two modes in the thick region, the guided light interferes either almost completely destructively at the transition to the output segment, i.e. the power is radiated away into the substrate and cover regions, or constructively, i.e. most of the power passes the device. We believe that for certain applications structures of this kind can be a simple substitute for instruments like Mach-Zehnder interferometers or directional couplers. This is illustrated by two numerically simulated examples: A polarizer constructed from silicon based waveguides, which offers 30 dB polarization discrimination and 0.1 dB insertion loss with a total length of only 10 micrometers, and a proposal for an integrated magneto optic isolator experiment, where the freedom in the lateral direction can be exploited for a proper tuning of the device.",
keywords = "METIS-200500, EWI-13970, IR-65083, polarizer device, magnetooptic isolator, waveguide interferometer, Integrated Optics",
author = "Manfred Lohmeyer and Remco Stoffer and Ludger Wilkens and Horst D{\"o}tsch",
year = "2001",
month = "1",
day = "20",
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Lohmeyer, M, Stoffer, R, Wilkens, L & Dötsch, H 2001, Integrated optical cross strip interferometer. in GC Righini & S Honkanen (eds), Integrated Optics Devices V. Proceedings of SPIE, vol. 4277, SPIE, Bellingham, WA, pp. 230-241, SPIE Symposium on Integrated Optics 2001, San Jose, United States, 20/01/01. https://doi.org/10.1117/12.426799

Integrated optical cross strip interferometer. / Lohmeyer, Manfred; Stoffer, Remco; Wilkens, Ludger; Dötsch, Horst.

Integrated Optics Devices V. ed. / Giancarlo C. Righini; Seppo Honkanen. Bellingham, WA : SPIE, 2001. p. 230-241 (Proceedings of SPIE; Vol. 4277).

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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N2 - A thick, bimodal segment of specific length and height between two single mode sections of a planar waveguide can serve as an integrated optical interferometer. It is realized by etching a wide strip form a guiding film. A vertically guided, laterally unguided beam of light is then made to traverse the strip perpendicularly. For a wide range of materials the structure can be dimensioned such that it shows the proper behavior of an interferometer: depending on the phase gain of the two modes in the thick region, the guided light interferes either almost completely destructively at the transition to the output segment, i.e. the power is radiated away into the substrate and cover regions, or constructively, i.e. most of the power passes the device. We believe that for certain applications structures of this kind can be a simple substitute for instruments like Mach-Zehnder interferometers or directional couplers. This is illustrated by two numerically simulated examples: A polarizer constructed from silicon based waveguides, which offers 30 dB polarization discrimination and 0.1 dB insertion loss with a total length of only 10 micrometers, and a proposal for an integrated magneto optic isolator experiment, where the freedom in the lateral direction can be exploited for a proper tuning of the device.

AB - A thick, bimodal segment of specific length and height between two single mode sections of a planar waveguide can serve as an integrated optical interferometer. It is realized by etching a wide strip form a guiding film. A vertically guided, laterally unguided beam of light is then made to traverse the strip perpendicularly. For a wide range of materials the structure can be dimensioned such that it shows the proper behavior of an interferometer: depending on the phase gain of the two modes in the thick region, the guided light interferes either almost completely destructively at the transition to the output segment, i.e. the power is radiated away into the substrate and cover regions, or constructively, i.e. most of the power passes the device. We believe that for certain applications structures of this kind can be a simple substitute for instruments like Mach-Zehnder interferometers or directional couplers. This is illustrated by two numerically simulated examples: A polarizer constructed from silicon based waveguides, which offers 30 dB polarization discrimination and 0.1 dB insertion loss with a total length of only 10 micrometers, and a proposal for an integrated magneto optic isolator experiment, where the freedom in the lateral direction can be exploited for a proper tuning of the device.

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A2 - Honkanen, Seppo

PB - SPIE

CY - Bellingham, WA

ER -

Lohmeyer M, Stoffer R, Wilkens L, Dötsch H. Integrated optical cross strip interferometer. In Righini GC, Honkanen S, editors, Integrated Optics Devices V. Bellingham, WA: SPIE. 2001. p. 230-241. (Proceedings of SPIE). https://doi.org/10.1117/12.426799