Quasi PT-symmetric design for single-mode high-power edge-emitting semiconductor lasers

Simple item page
buir.contributor.authorOlyaeefar, Babak
buir.contributor.authorŞeker, Enes
buir.contributor.authorŞengül, Serdar
buir.contributor.authorDadashi, Khalil
buir.contributor.authorDemir, Abdullah
buir.contributor.orcidOlyaeefar, Babak|0000-0002-6919-892X
buir.contributor.orcidŞeker, Enes|0000-0002-8548-6796
buir.contributor.orcidDadashi, Khalil|0000-0001-8603-5527
buir.contributor.orcidDemir, Abdullah|0000-0003-4678-0084
dc.contributor.authorOlyaeefar, Babak
dc.contributor.authorŞeker, Enes
dc.contributor.authorŞengül, Serdar
dc.contributor.authorDadashi, Khalil
dc.contributor.authorTeimourpour, M. H.
dc.contributor.authorEl-Ganainy, R.
dc.contributor.authorDemir, Abdullah
dc.coverage.spatialMunich, Germany
dc.date.accessioned2024-03-15T13:48:41Z
dc.date.available2024-03-15T13:48:41Z
dc.date.issued2023-09-04
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)
dc.descriptionDate of Conference: 26 – 30 June 2023
dc.descriptionConference Name: 2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023
dc.description.abstractLarge-area lasers are utilized for generating higher optical powers. However, enlarged cross-sections for increased current injection lead to the introduction of high-order modes, decreased beam qualities, and limited applicability. Available mode filtering approaches such as adiabatic amplifiers, tapered designs, laterally inhomogeneous structures, and refractive index modulations mostly adversely affect the fundamental mode and require added steps and complexities in the fabrication. As a novel concept in quantum mechanics, PT-symmetric (PTS) designs have found their only experimental validation in optical devices. They have shown capabilities in high-order mode filtering by inducing selective modal losses on the coupled higher-order mode from a pumped main potential to a lossy partner potential. Again, these systems require precise adjustments to avoid affecting the fundamental mode. Here, we introduce the quasi-PTS concept, with reduced operational sensitivity, to selectively force loss on the high-order mode while keeping the fundamental mode intact. This design is based on adjusting the width of the passive partner to support the higher-order mode of the main potential as its first mode. We present experimental evidence for an electrically pumped, large-area edge-emitting laser with high-power emission above 400mW and high beam qualities below 1.2. Beyond prior proof-of-concept investigations, this study provides the first unambiguous demonstration of PTS applicability in designing laser geometries with industrial output power levels and emission characteristics.
dc.description.provenanceMade available in DSpace on 2024-03-15T13:48:41Z (GMT). No. of bitstreams: 1 Quasi_P_T_symmetric_design_for_single_mode_high_power_edge_emitting_semiconductor_lasers.pdf: 2339066 bytes, checksum: aea684cf0f515c371b583b1a8b641733 (MD5) Previous issue date: 2023-09en
dc.identifier.doi10.1109/CLEO/Europe-EQEC57999.2023.10231556
dc.identifier.eisbn9798350345995
dc.identifier.eissn2833-1052
dc.identifier.isbn9798350346008
dc.identifier.issn2639-5452
dc.identifier.urihttps://hdl.handle.net/11693/114821
dc.language.isoEnglish
dc.publisherIEEE - Institute of Electrical and Electronics Engineers
dc.relation.isversionofhttps://dx.doi.org/10.1109/CLEO/Europe-EQEC57999.2023.10231556
dc.source.title2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC 2023)
dc.titleQuasi PT-symmetric design for single-mode high-power edge-emitting semiconductor lasers
dc.typeConference Paper

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Quasi_P_T_symmetric_design_for_single_mode_high_power_edge_emitting_semiconductor_lasers.pdf
Size:
2.23 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
2.01 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Scholarly Publications - UNAM