Dual-Frequency Defect-Mode Lasing in Aperiodic Distributed Feedback Cavities

Thomas G. Folland; Subhasish Chakraborty

doi:10.1109/LPT.2016.2561079

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Dual-Frequency Defect-Mode Lasing in Aperiodic Distributed Feedback Cavities

Thomas G. Folland and Subhasish Chakraborty

IEEE photonics technology letters, Vol.28(15), pp.1617-1620

08/01/2016

DOI: 10.1109/LPT.2016.2561079

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Abstract

In this letter, we aim to provide the first in-depth study of a multiband hologram filter response under the influence of gain. We find that these aperiodic distributed feedback (ADFB) gratings, which are essentially computer optimized digital holograms, can be inverse designed to possess multiple defectlike modes analogous to those present in quarter-wave phase shifted gratings. We attribute this phenomenon to the interaction between multiple photonic band gaps in ADFB cavities. Further examination of the ADFB gratings reveal that the defect-mode lasing solutions are insensitive to the variations of the grating feedback strength (kappa). This result in particular, which has important significance to minimize error in fabrication, is confirmed against published experimental data for an ADFB laser.

Engineering

Engineering, Electrical & Electronic

Optics

Physical Sciences

Physics

Physics, Applied

Science & Technology

Technology

Details

Title: Subtitle: Dual-Frequency Defect-Mode Lasing in Aperiodic Distributed Feedback Cavities
Creators: Thomas G. Folland - University of Manchester
Subhasish Chakraborty - University of Manchester
Resource Type: Journal article
Publication Details: IEEE photonics technology letters, Vol.28(15), pp.1617-1620
DOI: 10.1109/LPT.2016.2561079
ISSN: 1041-1135
eISSN: 1941-0174
Publisher: IEEE
Number of pages: 4
Grant note: EP/G064504/1 / EPSRC; UK Research & Innovation (UKRI); Engineering & Physical Sciences Research Council (EPSRC) EP/G03737X/1 / Engineering and Physical Sciences Research Council within the North-West Nanoscience Doctoral Training Centre; UK Research & Innovation (UKRI); Engineering & Physical Sciences Research Council (EPSRC) EP/G064504/1 / Engineering and Physical Sciences Research Council; UK Research & Innovation (UKRI); Engineering & Physical Sciences Research Council (EPSRC)
Language: English
Date published: 08/01/2016
Academic Unit: Physics and Astronomy
Record Identifier: 9984428824502771

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