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160-GHz 1.55- \mu{\rm m} Colliding-Pulse Mode-Locked AlGaInAs/InP Laser With High Power and Low Divergence Angle

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5 Author(s)
Lianping Hou ; Sch. of Eng., Univ. of Glasgow, Glasgow, UK ; Haji, M. ; Akbar, J. ; Bryce, A.C.
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A monolithic ~1.55-μm colliding-pulse mode-locked AlGaInAs/InP laser with a three-quantum-well active layer incorporating a passive far-held reduction layer has been demonstrated. The device emits pulses at 162 GHz, with a pulsewidth of 0.98 ps, a pulse energy of 0.13 pJ, and a time-bandwidth product of 0.52, while demonstrating a low divergence angle (12.7° × 26.3°) with a twofold improvement in butt coupling efficiency to a flat cleaved single-mode fiber, compared to the conventional mode-locked lasers.

Published in:

Photonics Technology Letters, IEEE  (Volume:24 ,  Issue: 12 )