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Low loss InP based photonic crystal waveguides and resonators
KTH, School of Information and Communication Technology (ICT), Microelectronics and Information Technology, IMIT.
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2005 (English)In: Optoelectronic Integrated Circuits VII, SPIE - International Society for Optical Engineering, 2005, 249-256 p.Conference paper, Published paper (Refereed)
Abstract [en]

We report on low-loss light propagation at the communication wavelength of 1.55 μm through straight two-dimensional photonic crystal waveguides patterned into InGaAsP/InP heterostructures. The linear defect waveguides along the ΓK direction of a triangular lattice of air holes were etched deeply into the semiconductor by Cl 2/Ar electron cyclotron resonance reactive ion etching. Efficient waveguiding was observed for both polarization directions, although a photonic band gap exists for only one of the polarization states. Propagation losses, determined by the Fabry-Pérot resonance method, are as low as 0.2 dB/mm and 1.5 dB/mm for waveguides based on seven and three missing rows of holes, respectively. Waveguide resonators with 100 GHz channel spacing and quality factors up to 15,000 have been realized by inserting photonic crystal mirrors into the waveguides. The dispersion of the resonators was measured using a phase shift technique. Values for the group velocity dispersion range from -250 ps/nm to +250 ps/nm at wavelengths around 1.55 μm, which is sufficient to compensate for the dispersion of 15 km standard single-mode fiber. Controlling the device temperature allows to tune the dispersive properties of the devices.

Place, publisher, year, edition, pages
SPIE - International Society for Optical Engineering, 2005. 249-256 p.
Series
Progress in Biomedical Optics and Imaging - Proceedings of SPIE, ISSN 1605-7422 ; 5729
Keyword [en]
Cladding (coating), Crystal resonators, Defects, Electromagnetic dispersion, Energy gap, Indium compounds, Light polarization, Light propagation, Optical communication, Optical fibers, Photons, Semiconducting gallium arsenide, Linear defects, Photonic band gaps, Photonic crystal waveguides, Photonic crystals, Optical waveguides
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-156695DOI: 10.1117/12.590770ISI: 000228896700027Scopus ID: 2-s2.0-21844433485ISBN: 0-8194-5703-5 (print)OAI: oai:DiVA.org:kth-156695DiVA: diva2:768454
Conference
Optoelectronic Integrated Circuits VII, 25 January 2005 through 27 January 2005, San Jose, CA, United States
Note

QC 20141204

Available from: 2014-12-04 Created: 2014-12-02 Last updated: 2014-12-04Bibliographically approved

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CiteExportLink to record
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  • apa
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