Coherently Coupled Photonic Crystal Surface Emitting Lasers

Author

Taylor, R.J.E. ; Childs, D.T.D. ; Crombie, A. ; Stevens, B.J. ; Ivanov, P.S. ; Babazadeh, N. ; Groom, K.M. ; Shepherd, L. ; Ternent, G. ; Thoms, S. ; Zhou, Huimin ; Sarma, J. ; Khamas, S. ; Hogg, R.A.

Author_Institution

Dept. of Electron. & Electr. Eng., Univ. of Sheffield, Sheffield, UK

fYear

2014

fDate

7-10 Sept. 2014

Firstpage

213

Lastpage

214

Abstract

In this paper we demonstrate coherently coupled PCSELs. By utilising allsemiconductor PCSELs, realised by MOVPE re-growth [6], we fabricate PCSELs coupled by an electrically driven region (“coupler”), shown schematically in Fig. 2, allowing the electronic control of coherence between emitters. This is made possible due to the small modal refractive index change between coupler and PCSEL in our all-semiconductor device. Both coupled PCSELs have a threshold current of ~65mA and matched emission wavelengths of 986.5nm due to nominally identical photonic crystal structures.

Keywords

MOCVD; light coherence; optical control; optical couplers; optical fabrication; optical pumping; photonic crystals; refractive index; surface emitting lasers; vapour phase epitaxial growth; MOVPE regrowth; coherently coupled PCSEL fabrication; electronic control; nominally identical photonic crystal structures; photonic crystal surface emitting lasers; refractive index change; wavelength 986.5 nm; Couplers; Couplings; Educational institutions; Photonic crystals; Semiconductor laser arrays; Vertical cavity surface emitting lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Semiconductor Laser Conference (ISLC), 2014 International

Conference_Location

Palma de Mallorca

Print_ISBN

978-1-4799-5721-7

Type

conf

DOI

10.1109/ISLC.2014.239

Filename

6987526