A simple all-optical label detection and swapping technique incorporating a fiber Bragg grating filter

This letter proposes and demonstrates a simple all-optical label detection and swapping technique incorporating a fiber Bragg grating (FBG) filter and a double sideband subcarrier multiplexed (DSB-SCM) signal. The optical datagram consisting of a baseband 2.488-Gb/s data payload and a subcarrier mul...

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Bibliographic Details
Published in:IEEE photonics technology letters 2001-06, Vol.13 (6), p.635-637
Main Authors: Hyuek Jae Lee, Yoo, S.J.B., Tsui, V.K., Fong, S.K.H.
Format: Article
Language:English
Subjects:
Baseband
Bragg gratings
Circuits
Fiber gratings
Fibers
Labels
Law
Modulation
Multiplexing
Multiprotocol label switching
Optical devices
Optical fiber filters
Optical filters
Optical modulation
Payloads
Subcarriers
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Summary:This letter proposes and demonstrates a simple all-optical label detection and swapping technique incorporating a fiber Bragg grating (FBG) filter and a double sideband subcarrier multiplexed (DSB-SCM) signal. The optical datagram consisting of a baseband 2.488-Gb/s data payload and a subcarrier multiplexed 622-Mb/s label are optically processed to separate the two components, and then a new label content is encoded by subsequent optical modulation. The optically separated original label is detected by a square law detector without involving any high-frequency subcarrier circuitry. Bit-error-rate measurements confirm a successful and low-penalty label swapping technique, which maintains optical transparency for the data payload.
ISSN:1041-1135
1941-0174
DOI:10.1109/68.924052