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All-Fiber Nanosecond Gating for Time-Resolved Spectral Analysis
KTH, School of Engineering Sciences (SCI), Applied Physics, Laser Physics. Uppsala University, Sweden.ORCID iD: 0000-0003-3933-4406
KTH, School of Engineering Sciences (SCI), Applied Physics, Laser Physics. Acreo Swedish ICT AB, Dept Fiber Photon, Stockholm, Sweden.
KTH, School of Engineering Sciences (SCI), Applied Physics, Laser Physics.ORCID iD: 0000-0001-7688-1367
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) Published
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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
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Other Physics Topics
Identifiers
URN: urn:nbn:se:kth:diva-185339DOI: 10.1109/LPT.2015.2513739ISI: 000372637700002Scopus ID: 2-s2.0-84963593144OAI: oai:DiVA.org:kth-185339DiVA: diva2:921744
Funder
Swedish Research CouncilKnut and Alice Wallenberg FoundationEU, FP7, Seventh Framework Programme, FP7-288786Carl Tryggers foundation
Note

QC 20160421

Available from: 2016-04-21 Created: 2016-04-18 Last updated: 2016-04-21Bibliographically approved

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Citation style
  • apa
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  • de-DE
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Output format
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