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Ultrasharp ministop-band edge for subnanometer tuning resolution

Date

2011

Authors

Shahid, Naeem
Speijcken, N
Naureen, Shagufta
Li, Mingyu
Swillo, Marcin
Anand, S

Journal Title

Journal ISSN

Volume Title

Publisher

American Institute of Physics (AIP)

Abstract

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/°C. The spectral characteristics of the MSB realized in this work are promising for sensing, tuning, and modulation applications.

Description

Keywords

Keywords: A-coefficient; Band edge; Fabrication accuracy; In-line; Multimodes; Spectral characteristics; Spectral tuning; Subnanometers; Wavelength position; Photonic crystals

Citation

URI

http://hdl.handle.net/1885/65055

Collections

ANU Research Publications

Source

Applied Physics Letters

Type

Journal article

Book Title

Entity type

Access Statement

Open Access

License Rights

DOI

10.1063/1.3559915

Restricted until

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