Flexible Polymeric Tunable Lasers for WDM Passive Optical Networks

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Flexible polymer waveguide with a Bragg reflection grating is incorporated to form an external cavity laser with a wide tuning range, and it is evaluated as a tunable light source for wavelength division multiplexing optical communication systems. The highly elastic property of polymer materials makes them suitable for producing a tunable Bragg reflector controlled by an imposed strain. The flexible tunable Bragg reflector is installed on a compact moving stage 6 connected to a piezoelectric motor. By applying a total strain of 60680 mu epsilon (6.07%), wavelength tuning of 82 nm is achieved with a side-mode suppression ratio of 43 dB and a linewidth less than 0.1 nm. The tunable laser controlled by a microactuator exhibits long-term stability with a wavelength fluctuation of less than 0.1 nm. In the optical transmission experiment, various wavelengths are used to transmit the 2.5 Gb/s signal over 50 km, excellent performance was observed with a power penalty of 1 dB compared to the DFB laser.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2013-03
Language
English
Article Type
Article
Keywords

DFB LASER; GRATINGS

Citation

JOURNAL OF LIGHTWAVE TECHNOLOGY, v.31, no.6, pp.982 - 987

ISSN
0733-8724
DOI
10.1109/JLT.2013.2241016
URI
http://hdl.handle.net/10203/174530
Appears in Collection
EE-Journal Papers(저널논문)
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