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Updated: Jul 3, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
Published on: May 30, 2014
Short pulse generation using a passively mode locked single InGaAsP/InP quantum well laser
K Merghem1, A Akrout, A Martinez
1CNRS, Laboratory for Photonics and Nanostructures, Route de Nozay, 91460 Marcoussis, France. kamel.merghem@lpn.cnrs.fr
Abstract:
We report on subpicosecond pulse generation using passively mode locked lasers (MLL) based on a low optical confinement single InGaAsP/InP quantum well active layer grown in one epitaxial step. Systematic investigation of the performances of two-section MLLs emitting at 1.54 microm evidenced pulse width of 860 fs at 21.31 GHz repetition rate, peak power of approximately 500 mW and a time-bandwith product of 0.57. A 30 kHz linewidth of the photodetected radio-frequency electrical spectrum is further demonstrated at 21 GHz which is, to our knowledge, the lowest value ever reported for a quantum well device.
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