Ultrasharp ministop-band edge for subnanometer tuning resolution
2011 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 98, no 8, 081112- p.Article in journal (Refereed) Published
We propose and demonstrate a method that enables spectral tuning with subnanometer accuracy, and is based on the transmission ministop-band (MSB) in line-defect multimode photonic crystal (PhC) waveguides. The fabricated MSB filter has ultrasharp edges which show a 30 dB drop in transmission in a 4 nm wavelength span. The use of the ultrasharp MSB edge to (optically) determine PhC fabrication accuracy is demonstrated. The wavelength position of the MSB could be tuned by temperature, with a coefficient of 0.1 nm/degrees C. The spectral characteristics of the MSB realized in this work are promising for sensing, tuning, and modulation applications.
Place, publisher, year, edition, pages
2011. Vol. 98, no 8, 081112- p.
CRYSTAL WAVE-GUIDES, PHOTONIC CRYSTALS, STOP-BAND, SLAB, DEVICES, DEPENDENCE, INDEX, LIGHT
Other Engineering and Technologies
IdentifiersURN: urn:nbn:se:kth:diva-31378DOI: 10.1063/1.3559915ISI: 000287764300012ScopusID: 2-s2.0-79952074215OAI: oai:DiVA.org:kth-31378DiVA: diva2:403894
QC 201103152011-03-152011-03-142012-08-31Bibliographically approved