A novel two-section tunable discrete mode Fabry-PÉrot laser exhibiting nanosecond wavelength switching
Phelan, Richard and Guo, Wei Hua and Lu, Qiaoyin and Byrne, Diarmuid and Roycroft, Brendan and Lambkin, Paul and Corbett, Brian and Smyth, Frank and Barry, Liam P. and Kelly, Brian and O'Gorman, J. and Donegan, John Francis (2008) A novel two-section tunable discrete mode Fabry-PÉrot laser exhibiting nanosecond wavelength switching. IEEE Journal of Quantum Electronics, 44 (4). pp. 331-337. ISSN 0018-9197
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A novel widely tunable laser diode is proposed and demonstrated. Mode selection occurs by etching perturbing slots into the laser ridge. A two-section device is realized with different slot patterns in each section allowing Vernier tuning. The laser operates at 1.3 mum and achieves a maximum output power of 10 mW. A discontinuous tuning range of 30 nm was achieved with a side mode suppression greater than 30 dB. Wavelength switching times of approximately 1.5 ns between a number of wavelength channels separated by 7 nm have been demonstrated.
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