title: Lasing and optical gain around 500 nm from optically pumped lasers grown on c-plane GaN substrates.
abstract: Using the variable stripe length method we demonstrated positive net optical gain around 500 nm for an optically pumped laser with InGaN/GaN multiple quantum wells grown on c-plane freestanding GaN substrates. We found that owing to low optical gain, reducing optical losses is crucial to increasing lasing wavelength. We demonstrated lasing at 502 nm by using a 3-mm-long cavity with cleaved facets.
authors.affiliation: Corning Incorporated, Corning, NY 14831, USA. sizovds@corning.com
authors.forename: Dmitry S
authors.initials: DS
authors.lastname: Sizov
authors.forename: Rajaram
authors.initials: R
authors.lastname: Bhat
authors.forename: Jerome
authors.initials: J
authors.lastname: Napierala
authors.forename: Jingqun
authors.initials: J
authors.lastname: Xi
authors.forename: Donald E
authors.initials: DE
authors.lastname: Allen
authors.forename: Chad S
authors.initials: CS
authors.lastname: Gallinat
authors.forename: Chung-En
authors.initials: CE
authors.lastname: Zah