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All-Fiber Nanosecond Gating for Time-Resolved Spectral Analysis
RISE, Swedish ICT, Acreo.
2016 (English)In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 28, no 8, p. 829-832, article id 7381625Article in journal (Refereed) Published
Abstract [en]

We demonstrate the addition of time gating to a standard optical spectrum analyzer (OSA) operating in the spectral region ∼ 1.06 μm. 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, p. 829-832, article id 7381625
Keywords [en]
Electrooptic modulation, Optical fiber devices, Spectral analysis, Fiber Bragg gratings, Optical fibers, Spectrum analysis, Spectrum analyzers, Electro-optic modulation, Extinction ratios, Nanosecond gating, Nanosecond resolution, Optical spectrum analyzer, Spectral region, Time-resolved spectral analysis, Fibers
National Category
Computer and Information Sciences
Identifiers
URN: urn:nbn:se:ri:diva-32588DOI: 10.1109/LPT.2015.2513739Scopus ID: 2-s2.0-84963593144OAI: oai:DiVA.org:ri-32588DiVA, id: diva2:1155339
Note

Funding details: Carl Tryggers Stiftelse för Vetenskaplig Forskning

Available from: 2017-11-07 Created: 2017-11-07 Last updated: 2018-01-13Bibliographically approved

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