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Optica Publishing Group
  • CLEO/Europe and IQEC 2007 Conference Digest
  • (Optica Publishing Group, 2007),
  • paper CE2_2

Microstructured polymer lasers: diode-pumped lasing and extending operation lifetimes

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Abstract

The field of organic semiconductors lasers is developing rapidly, building on the major advances in organic light-emitting diodes. Semiconducting conjugated polymers have many attractive features for lasers, such as the very strong absorption (and hence gain), broad spectra, scope to tune emission across the visible spectrum, and simple processing [1,2]. Indeed solution processing and soft lithography can be used to rapidly form resonant structures with features on the wavelength scale. At present, all organic semiconductor lasers are pumped optically, and as a result the nature of the pump source is a key factor determining the size, cost and complexity of the overall system. Early polymer lasers were pumped by a regenerative amplifier, but steady progress has been made to improve the optical design to allow pumping by much more compact sources, such as a microchip laser [2]. We now report the demonstration of a very compact, all-solid-state polymer laser system comprising of a GaN semiconductor diode laser as the pump source with a novel surface-emitting resonator structure and an innovative energy-transfer gain medium. We also report improved operating lifetimes in micromoulded polymer DFB lasers through simple device encapsulation.

© 2007 IEEE

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