Generation of widely tunable picosecond pulses with large SMSR by externally injecting a gain-switched dual laser source

The authors demonstrate a procedure of generating picosecond optical pulses that are tunable over a wide wavelength range (65 nm) and have very high spectral purity side-mode suppression ratio [(SMSR)>60 dB]. The large tuning range is obtained by employing external injection into a gain-switched...

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Bibliographic Details
Published in:IEEE photonics technology letters 2004-10, Vol.16 (10), p.2344-2346
Main Authors: Clarke, A.M., Anandarajah, P.M., Barry, L.P.
Format: Article
Language:English
Subjects:
Fabry-Perot
Fiber lasers
Frequency
Laser tuning
Lasers
Noise levels
Optical fiber communication
Optical pulse generation
Optical pulses
Optical tuning
Picosecond pulses
Semiconductor lasers
Spectra
Tunable circuits and devices
Tuning
Wavelength division multiplexing
Wavelengths
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Summary:The authors demonstrate a procedure of generating picosecond optical pulses that are tunable over a wide wavelength range (65 nm) and have very high spectral purity side-mode suppression ratio [(SMSR)>60 dB]. The large tuning range is obtained by employing external injection into a gain-switched source containing two Fabry-Pe/spl acute/rot lasers. The use of a widely tunable Bragg grating at the output improves the SMSR such that it exceeds 60 dB over the entire tuning range.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2004.834523