Novel quasi-phase-matched semiconductor nonlinear crystals to generate light in broad wavelength ranges

Lead Research Organisation: University of Dundee
Department Name: Electronic Engineering and Physics

Abstract

Within this project we plan to carry out theoretical and experimental studies of novel types of first-order quasi-phasematching in semiconductor materials. In addition to fully characterising and optimising these crystals for UV/visible and near/mid-IR wavelength ranges, I also wish to evaluate their applicability towards the realization of compact laser sources for these wavelength ranges. The overall objective of this work is to produce diode-laser-driven, compact UV/visible (370-600nm) and near/mid-IR (1.3 - 35 um) sources having 10's mW output power and broadband tuning over 1000 nm at room temperature.

Publications

10 25 50
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Fedorova K (2010) Broadly Tunable InGaAsP-InP Strained Multiquantum-Well External Cavity Diode Laser in IEEE Photonics Technology Letters

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Lagatsky A (2010) Ultrashort-pulse lasers passively mode locked by quantum-dot-based saturable absorbers in Progress in Quantum Electronics

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Lagatsky AA (2007) Efficient doubling of femtosecond pulses in aperiodically and periodically poled KTP crystals. in Optics express

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Rafailov E (2007) Mode-locked quantum-dot lasers in Nature Photonics

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Rautiainen J (2009) Intracavity generation of 610 nm light by periodically poled near-stoichiometric lithium tantalate in Electronics Letters

 
Description have been develop a new technology for nonlinear waveguided crystals based on semiconductor materials. Such crystals will allow to develop a compact light source in the 2-15 um wavelength range.
Exploitation Route It can used by companies to develop a compact light source in the 2-15 um wavelength range. Particularly, M-squared laser Ltd (Glasgow) have confirmed their interest in this technology.
Sectors Aerospace, Defence and Marine,Chemicals,Digital/Communication/Information Technologies (including Software),Healthcare