title: Switchable double wavelength generating vertical external cavity surface-emitting laser.
abstract: Switchable, double wavelength generation is demonstrated from a single vertical external cavity surface-emitting laser chip. Power of ~0.5 W for two wavelengths λ≈967 nm and 1,018 nm i.e. within the spectral distance of 51 nm were registered. In the semiconductor heterostructure a single set of nominally identical quantum wells was enclosed in a single, two-mode resonant microcavity. The wavelength switching was induced by the change of the pump power. The increase or decrease of the pump power changes the active region temperature and thus tunes spectrally the gain spectrum to the one of two modes.
authors.forename: Jan
authors.initials: J
authors.lastname: Muszalski
authors.forename: Artur
authors.initials: A
authors.lastname: Broda
authors.forename: Artur
authors.initials: A
authors.lastname: Trajnerowicz
authors.forename: Anna
authors.initials: A
authors.lastname: Wójcik-Jedlińska
authors.forename: Robert P
authors.initials: RP
authors.lastname: Sarzała
authors.forename: Michał
authors.initials: M
authors.lastname: Wasiak
authors.forename: Piotr
authors.initials: P
authors.lastname: Gutowski
authors.forename: Iwona
authors.initials: I
authors.lastname: Sankowska
authors.forename: Justyna
authors.initials: J
authors.lastname: Kubacka-Traczyk
authors.forename: Krystyna
authors.initials: K
authors.lastname: Gołaszewska-Malec