Accession Number : AD1051287


Title :   Novel High Power Type-I Quantum Well Cascade Diode Lasers


Descriptive Note : Technical Report,01 Jul 2014,30 Jun 2017


Corporate Author : Research Foundation of SUNY Stony Brook United States


Personal Author(s) : Westerfeld, David ; Belenky,Gregory ; Shterengas,Leon


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1051287.pdf


Report Date : 30 Aug 2017


Pagination or Media Count : 47


Abstract : The goal of the proposed efforts was development of the new class of the high power mid-infrared laser emitters operating in spectral region from 2 to 3.5 um. the devices should be operating in continuous wave regime at room temperature. The program included the development of the novel laser heterostructure design comprising cascade pumping of the type-I quantum well. The novel lasers should have reduced threshold currents and improved efficiency and demonstrate multi-fold improvement in output power level in both spatially multi-mode and single-mode beams compared to the state-of-the-art available. The design and fabrication of the single mode widely tunable distributed feedback and external cavity mid-infrared emitters was targeted ate the final stage of the program.


Descriptors :   distributed feedback lasers , quantum wells , quantum cascade lasers , power levels , energy bands , current density , solid state physics , heterojunctions , etching , waveguides , multimode , fabrication , electron beam lithography , efficiency , continuous waves


Subject Categories : Lasers and Masers


Distribution Statement : APPROVED FOR PUBLIC RELEASE