Flexible Polymeric Tunable Lasers for WDM Passive Optical Networks

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 mak...

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Bibliographic Details
Published in:Journal of lightwave technology 2013-03, Vol.31 (6), p.982-987
Main Authors: KIM, Kyung-Jo, OH, Min-Cheol, MOON, Sang-Rok, LEE, Chang-Hee
Format: Article
Language:English
Subjects:
Applied sciences
Bragg gratings
Bragg reflectors
Circuit properties
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
flexible polymer devices
Gratings
Information, signal and communications theory
Integrated optics. Optical fibers and wave guides
Laser tuning
Multiplexing
Optical and optoelectronic circuits
Optical fiber communications
Optical telecommunications
Optical waveguides
polymer waveguides
Polymers
Signal and communications theory
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
tunable lasers
Waveguide lasers
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Summary: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 με (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.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2013.2241016