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Title: Generation of continuous wavelength-tunable optical short pulses with two Fabry–Pérot laser diodes in an external injection-seeding scheme
Authors: Wang, D 
Fang, X
Jin, W 
Issue Date: 1-Apr-2005
Source: Journal of the Optical Society of America B : optical physics, 1 Apr. 2005, v. 22, no. 4, p. 917-921
Abstract: We have developed an external-injection seeding system to generate continuous wavelength-tunable optical short pulses with a side-mode suppression ratio of more than 28 dB over a wavelength-tuning range of 21.2 nm. The system consists of two Fabry–Pérot laser diodes, one of which is gain switched and another that is dc biased; two tunable optical filters; an erbium-doped optical-fiber amplifier; and a circulator. The system is simple, easy to operate, and robust and may be used in wavelength-division-multiplexed optical-communication systems and in time-division multiplexing of spectroscopic gas sensors.
Keywords: Chemical sensors
Fiber lasers
Optical communiction
Optical filters
Semiconductor lasers
Time division multiplexing
Waveguide circulators
Wavelength division multiplexing
Publisher: Optical Society of America
Journal: Journal of the Optical Society of America B : optical physics 
ISSN: 0740-3224
EISSN: 1520-8540
DOI: 10.1364/JOSAB.22.000917
Rights: © 2005 Optical Society of America. This paper was published in Journal of the Optical Society of America B and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-22-4-917. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
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