Recent advances on multiple channel unequally spaced optical phased array for ultrafast LADAR

Shizhuo Yin, Jae Hun Kim, Jimmy Yao, Paul Ruffin, Eugene Edwards, Christina Brantley, Claire Luo

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

    2 Citations (Scopus)

    Abstract

    In this paper, we experimentally verify that previously proposed idea of unequally spaced optical phased array can greatly reduce grating-lobes. As the verification purpose of our previous numerical design, a laser beam is passed through unequally-spaced slits, whose spacings are the same as the previous design. Interference patterns formed after both 4- and 8-channel slits clearly show that the grating-lobes can be greatly minimized. To realize the beam steering possible, optical waveguides array, which has unequally spaced design at the output ends is fabricated. The phase of each beam can be varied using fibers array wound around PZT tubes before each beam is coupled into the waveguides array. Interference patterns formed after the outputs of both 4- and 8-channel waveguides array show that the gratinglobes can be greatly reduced using unequally spaced optical phased array technique.

    Original languageEnglish (US)
    Title of host publicationPhotonic Fiber and Crystal Devices
    Subtitle of host publicationAdvances in Materials and Innovations in Device Applications II
    DOIs
    StatePublished - Nov 12 2008
    EventPhotonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications II - San Diego, CA, United States
    Duration: Aug 12 2008Aug 14 2008

    Publication series

    NameProceedings of SPIE - The International Society for Optical Engineering
    Volume7056
    ISSN (Print)0277-786X

    Other

    OtherPhotonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications II
    CountryUnited States
    CitySan Diego, CA
    Period8/12/088/14/08

    Fingerprint

    Phased Array
    phased arrays
    Waveguides
    lobes
    Gratings
    slits
    Waveguide
    Interference
    Optical waveguides
    gratings
    waveguides
    Beam Steering
    interference
    Laser beams
    beam steering
    Optical Waveguides
    output
    Output
    Laser Beam
    optical waveguides

    All Science Journal Classification (ASJC) codes

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Computer Science Applications
    • Applied Mathematics
    • Electrical and Electronic Engineering

    Cite this

    Yin, S., Kim, J. H., Yao, J., Ruffin, P., Edwards, E., Brantley, C., & Luo, C. (2008). Recent advances on multiple channel unequally spaced optical phased array for ultrafast LADAR. In Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications II [705619] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7056). https://doi.org/10.1117/12.794036
    Yin, Shizhuo ; Kim, Jae Hun ; Yao, Jimmy ; Ruffin, Paul ; Edwards, Eugene ; Brantley, Christina ; Luo, Claire. / Recent advances on multiple channel unequally spaced optical phased array for ultrafast LADAR. Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications II. 2008. (Proceedings of SPIE - The International Society for Optical Engineering).
    @inproceedings{38111f152ae049a2a3577bd220084619,
    title = "Recent advances on multiple channel unequally spaced optical phased array for ultrafast LADAR",
    abstract = "In this paper, we experimentally verify that previously proposed idea of unequally spaced optical phased array can greatly reduce grating-lobes. As the verification purpose of our previous numerical design, a laser beam is passed through unequally-spaced slits, whose spacings are the same as the previous design. Interference patterns formed after both 4- and 8-channel slits clearly show that the grating-lobes can be greatly minimized. To realize the beam steering possible, optical waveguides array, which has unequally spaced design at the output ends is fabricated. The phase of each beam can be varied using fibers array wound around PZT tubes before each beam is coupled into the waveguides array. Interference patterns formed after the outputs of both 4- and 8-channel waveguides array show that the gratinglobes can be greatly reduced using unequally spaced optical phased array technique.",
    author = "Shizhuo Yin and Kim, {Jae Hun} and Jimmy Yao and Paul Ruffin and Eugene Edwards and Christina Brantley and Claire Luo",
    year = "2008",
    month = "11",
    day = "12",
    doi = "10.1117/12.794036",
    language = "English (US)",
    isbn = "9780819472762",
    series = "Proceedings of SPIE - The International Society for Optical Engineering",
    booktitle = "Photonic Fiber and Crystal Devices",

    }

    Yin, S, Kim, JH, Yao, J, Ruffin, P, Edwards, E, Brantley, C & Luo, C 2008, Recent advances on multiple channel unequally spaced optical phased array for ultrafast LADAR. in Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications II., 705619, Proceedings of SPIE - The International Society for Optical Engineering, vol. 7056, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications II, San Diego, CA, United States, 8/12/08. https://doi.org/10.1117/12.794036

    Recent advances on multiple channel unequally spaced optical phased array for ultrafast LADAR. / Yin, Shizhuo; Kim, Jae Hun; Yao, Jimmy; Ruffin, Paul; Edwards, Eugene; Brantley, Christina; Luo, Claire.

    Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications II. 2008. 705619 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7056).

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

    TY - GEN

    T1 - Recent advances on multiple channel unequally spaced optical phased array for ultrafast LADAR

    AU - Yin, Shizhuo

    AU - Kim, Jae Hun

    AU - Yao, Jimmy

    AU - Ruffin, Paul

    AU - Edwards, Eugene

    AU - Brantley, Christina

    AU - Luo, Claire

    PY - 2008/11/12

    Y1 - 2008/11/12

    N2 - In this paper, we experimentally verify that previously proposed idea of unequally spaced optical phased array can greatly reduce grating-lobes. As the verification purpose of our previous numerical design, a laser beam is passed through unequally-spaced slits, whose spacings are the same as the previous design. Interference patterns formed after both 4- and 8-channel slits clearly show that the grating-lobes can be greatly minimized. To realize the beam steering possible, optical waveguides array, which has unequally spaced design at the output ends is fabricated. The phase of each beam can be varied using fibers array wound around PZT tubes before each beam is coupled into the waveguides array. Interference patterns formed after the outputs of both 4- and 8-channel waveguides array show that the gratinglobes can be greatly reduced using unequally spaced optical phased array technique.

    AB - In this paper, we experimentally verify that previously proposed idea of unequally spaced optical phased array can greatly reduce grating-lobes. As the verification purpose of our previous numerical design, a laser beam is passed through unequally-spaced slits, whose spacings are the same as the previous design. Interference patterns formed after both 4- and 8-channel slits clearly show that the grating-lobes can be greatly minimized. To realize the beam steering possible, optical waveguides array, which has unequally spaced design at the output ends is fabricated. The phase of each beam can be varied using fibers array wound around PZT tubes before each beam is coupled into the waveguides array. Interference patterns formed after the outputs of both 4- and 8-channel waveguides array show that the gratinglobes can be greatly reduced using unequally spaced optical phased array technique.

    UR - http://www.scopus.com/inward/record.url?scp=55549083862&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=55549083862&partnerID=8YFLogxK

    U2 - 10.1117/12.794036

    DO - 10.1117/12.794036

    M3 - Conference contribution

    AN - SCOPUS:55549083862

    SN - 9780819472762

    T3 - Proceedings of SPIE - The International Society for Optical Engineering

    BT - Photonic Fiber and Crystal Devices

    ER -

    Yin S, Kim JH, Yao J, Ruffin P, Edwards E, Brantley C et al. Recent advances on multiple channel unequally spaced optical phased array for ultrafast LADAR. In Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications II. 2008. 705619. (Proceedings of SPIE - The International Society for Optical Engineering). https://doi.org/10.1117/12.794036