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All-Fiber Nanosecond Gating for Time-Resolved Spectral Analysis
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences. Royal Inst Technol, Dept Appl Phys, S-10691 Stockholm, Sweden..
Acreo Swedish ICT AB, Dept Fiber Photon, S-16440 Stockholm, Sweden..
Royal Inst Technol, Dept Appl Phys, S-10691 Stockholm, Sweden.;Acreo Swedish ICT AB, Dept Fiber Photon, S-16440 Stockholm, Sweden..
Royal Inst Technol, Dept Appl Phys, S-10691 Stockholm, Sweden..
2016 (English)In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 28, no 8, 829-832 p.Article in journal (Refereed) PublishedText
Abstract [en]

We demonstrate the addition of time gating to a standard optical spectrum analyzer (OSA) operating in the spectral region similar to 1.06 mu m. This is accomplished by opening for 7 ns the optical input to the OSA with an electrically driven poled fiber in a Sagnac loop. The sequential interrogation with nanosecond resolution of the reflection from three fiber Bragg gratings along a piece of fiber allows distinguishing the spectral peaks created with a minimum separation of 85 cm. The passive extinction ratio of this device is >40 dB and returns to >40 dB from >23 dB on a 35-ns time scale directly after time gating.

Place, publisher, year, edition, pages
2016. Vol. 28, no 8, 829-832 p.
Keyword [en]
Electrooptic modulation, spectral analysis, optical fiber devices
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:uu:diva-286621DOI: 10.1109/LPT.2015.2513739ISI: 000372637700002OAI: oai:DiVA.org:uu-286621DiVA: diva2:924182
Funder
Knut and Alice Wallenberg FoundationEU, FP7, Seventh Framework Programme, FP7-288786Carl Tryggers foundation
Available from: 2016-04-28 Created: 2016-04-21 Last updated: 2016-09-02Bibliographically approved

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