Observation of the photoscattering effect from supercontinuum-generating germanosilicate fiber

Haohua Tu, Daniel L. Marks, Stephen A. Boppart

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

Abstract

We observe a photosensitivity apparently different from that associated with fiber grating inscription in a supercontinuum-generating germanosilicate fiber. Transmission of intense femtosecond ∼800 nm pulses in the heavily Ge-doped fiber progressively produces a waveguide at the entrance of the fiber. The waveguide behaves as a multi-millimeter long fiber bandpass filter which scatters away light with wavelength shorter or longer than 850 nm. This photosensitivity is therefore termed as the photoscattering effect. A model incorporating color center formation is proposed to explain the underlying mechanism. A 5-photon absorption process likely serves as the common origin of this effect and the ∼800 nm photosensitivity producing low-loss waveguides in bulk silica glass and Type I-IR fiber Bragg gratings in side written optical fibers.

Original languageEnglish (US)
Title of host publicationNonlinear Frequency Generation and Conversion
Subtitle of host publicationMaterials, Devices, and Applications VII
DOIs
StatePublished - Jun 13 2008
EventNonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII - San Jose, CA, United States
Duration: Jan 22 2008Jan 24 2008

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6875
ISSN (Print)0277-786X

Other

OtherNonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII
CountryUnited States
CitySan Jose, CA
Period1/22/081/24/08

Fingerprint

Photosensitivity
fibers
Fibers
photosensitivity
waveguides
Waveguides
Electric losses
Color centers
Fiber Bragg gratings
Fused silica
Bandpass filters
silica glass
Optical fibers
color centers
bandpass filters
entrances
Photons
Bragg gratings
optical fibers
Wavelength

Keywords

  • Nonlinear optics
  • Optical fiber
  • Photosensitivity
  • Supercontinuum generation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Tu, H., Marks, D. L., & Boppart, S. A. (2008). Observation of the photoscattering effect from supercontinuum-generating germanosilicate fiber. In Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII [68750Z] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6875). https://doi.org/10.1117/12.763000

Observation of the photoscattering effect from supercontinuum-generating germanosilicate fiber. / Tu, Haohua; Marks, Daniel L.; Boppart, Stephen A.

Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII. 2008. 68750Z (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6875).

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

Tu, H, Marks, DL & Boppart, SA 2008, Observation of the photoscattering effect from supercontinuum-generating germanosilicate fiber. in Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII., 68750Z, Proceedings of SPIE - The International Society for Optical Engineering, vol. 6875, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII, San Jose, CA, United States, 1/22/08. https://doi.org/10.1117/12.763000
Tu H, Marks DL, Boppart SA. Observation of the photoscattering effect from supercontinuum-generating germanosilicate fiber. In Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII. 2008. 68750Z. (Proceedings of SPIE - The International Society for Optical Engineering). https://doi.org/10.1117/12.763000
Tu, Haohua ; Marks, Daniel L. ; Boppart, Stephen A. / Observation of the photoscattering effect from supercontinuum-generating germanosilicate fiber. Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII. 2008. (Proceedings of SPIE - The International Society for Optical Engineering).
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