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Shape-memory polymers as flexible resonator substrates for continuously tunable organic DFB lasers

Schauer, S.; Liu, X.; Worgull, M.; Lemmer, U.; Hölscher, H.

Abstract:
We introduce shape-memory polymers (SMP) as substrate material for active optical devices. As an exemplary application we build a tunable organic semiconductor distributed feedback (DFB) laser. Hence, we transfer a second order Bragg grating with a period of 400 nm into SMP foils by hot embossing. The composite organic gain medium Alq3:DCM evaporated on the SMP substrate serves as laser active material. Mechanical stretching of the substrate increases the grating period temporarily and triggering the shape-memory effect afterwards reduces the period on demand. In this way, we can adjust the grating period to achieve a broad continuously tuning of the laser emission wavelength by 30 nm.

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Volltext §
DOI: 10.5445/IR/1000045937
Originalveröffentlichung
DOI: 10.1364/OME.5.000576
Scopus
Zitationen: 9
Web of Science
Zitationen: 8
Zugehörige Institution(en) am KIT Institut für Mikrostrukturtechnik (IMT)
Lichttechnisches Institut (LTI)
Karlsruhe Nano Micro Facility (KNMF)
Publikationstyp Zeitschriftenaufsatz
Jahr 2015
Sprache Englisch
Identifikator ISSN: 2159-3930
urn:nbn:de:swb:90-459378
KITopen-ID: 1000045937
HGF-Programm 43.22.01 (POF III, LK 01)
Erschienen in Optical materials express
Band 5
Heft 3
Seiten 576-584
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Nachgewiesen in Web of Science
Scopus
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