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Single grating period quantum cascade laser array with broad wavelength tuning range
Journal article   Peer reviewed

Single grating period quantum cascade laser array with broad wavelength tuning range

K. Kennedy, D. G. Revin, J. P. Commin, A. B. Krysa, M. P. Semtsiv, M. Chashnikova, W. T. Masselink, J. W. Cockburn and R. A. Hogg
Electronics letters, Vol.44(22), pp.1306-U28
2008
DOI: https://doi.org/10.1049/el:20082362

Abstract

Engineering Engineering, Electrical & Electronic Science & Technology Technology
A distributed feedback quantum cascade laser array emitting at lambda similar to 10 mm is reported. Utilising a ridge width dependence on emission wavelength, the array of laser ridges exhibited a tuning range in excess of 230 nm over the temperature range of 140 to 380 K. Singlemode operation with sidemode suppression ratios of >= 25 dB and a combined tuning coefficient of -0.1 cm(-1) K-1 are demonstrated.

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