Generation of widely tunable picosecond pulses with large SMSR by externally injecting a gain-switched dual laser source
Clarke, Aisling M. and Anandarajah, Prince M. and Barry, Liam P. (2004) Generation of widely tunable picosecond pulses with large SMSR by externally injecting a gain-switched dual laser source. IEEE Photonics Technology Letters, 16 (10). pp. 2344-2346. ISSN 1041-1135
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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.
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