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 :

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