Wavelength‐stabilized ns‐pulsed 2.2 kW diode laser bar with multiple active regions and tunnel junctions

Autor:	Nor Ammouri, Heike Christopher, Jörg Fricke, Arnim Ginolas, Armin Liero, Andre Maaßdorf, Hans Wenzel, Andrea Knigge
Jazyk:	angličtina
Rok vydání:	2023
Předmět:	tunnel diodes semiconductor diodes pulse measurement nanoelectronics semiconductor epitaxial layers quantum well lasers Electrical engineering. Electronics. Nuclear engineering TK1-9971
Zdroj:	Electronics Letters, Vol 59, Iss 1, Pp n/a-n/a (2023)
Druh dokumentu:	article
ISSN:	1350-911X 0013-5194
DOI:	10.1049/ell2.12680
Popis:	Abstract The improvement of the performance of a distributed Bragg reflector laser bar emitting near 905 nm through the use of multiple epitaxially stacked active regions and tunnel junctions is reported. The bar consisting of 48 emitters (each having an aperture of 50 µm) emits an optical power of 2.2 kW in 8 ns long pulses at an injection current of 1.1 kA. This corresponds to an almost threefold increase of the pulse power compared to a bar with lasers having only a single active region. Due to the integrated surface Bragg grating, the bar exhibits a narrow spectral bandwidth of about 0.3 nm and a thermal tuning of only 68 pm/K.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/15aa069cbd184fbc979c19cda819d3c7 Zobrazit plný text záznamu Plný text View record in DOAJ