Publication

Distributed feedback gain-coupled lasers based on InGaAs quantum-wire arrays

François Morier-Genoud, Denis Martin
1997
Journal Articles

Abstract

Fabrication and characterization of a current-injected InGaAs-GaAs quantum-wire gain-coupled distributed feedback (DFB) laser operating at 77 K at a wavelength of 923 nm are presented, Threshold current densities in broad area lasers were measured to be as low as 160 A/cm(2), The side-mode suppression ratio at twice threshold is 35 dB. A 4-mu m rib waveguide device has a threshold of 14 mA, The patterning process for the second-order DFB grating fabricated with deep UV holography and wet-chemical etching is described.

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https://infoscience.epfl.ch/entities/publication/891f507d-b639-4209-9a29-8dc1c4e7315b

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François Morier-Genoud, Denis Martin
1997
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/891f507d-b639-4209-9a29-8dc1c4e7315b

About this result

Related concepts (25)

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A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The word laser is an anacronym that originated as an acronym for light amplification by stimulated emission of radiation. The first laser was built in 1960 by Theodore Maiman at Hughes Research Laboratories, based on theoretical work by Charles H. Townes and Arthur Leonard Schawlow. A laser differs from other sources of light in that it emits light that is coherent.

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Distributed feedback gain-coupled lasers based on InGaAs quantum-wire arrays

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