External Cavity Design and Dynamics of High Frequency Modulated, High Power Blue Diode Lasers
Abstract
Underwater applications require a blue laser source that can emit in the range of at least 10 W andcan be high frequency modulated." Since a single blue diode cannot emit light at such high powers,a beam combining multiple diodes is required. However, high qualit"y beam combining requiresexcellent beam quality emission from each diode. The motivation of the proposed work isperforming thorough studies aimed into exploring the path for significant improvement of thebeam quality emitted from a single high power and coupled high power commercial quality bluediodes. The major goals for our proposed work are: (1) thoroughly exploring the behavior of highpower blue diodes (both OSRAM and Nichia) and (2) identifying the mechanisms for beam qualityimprovement from these diodes. In particular we will be exploring: (a) external cavity designs fora single high power blue diode; (b) effects of high frequency and high contrast current modulationon the emissions from a high power blue diode; (c) feasibility to achieve single mode emissionfrom a high power blue diode; (d) effects of the external cavity on combined emission from twohigh power blue diodes; and (e) exploration the feasibility to coherently combine weakly coupledhigh power blue diodes. We will also computationally and analytically study how to accuratelydescribe the dynamics of a high power blue diode subject to the external cavity and high frequencyand high contrast injection current modulation.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jan 23, 2018
- Source ID
- N000141812067
Entities
People
- Y. Braiman
Organizations
- Office of Naval Research
- United States Navy
- University of Tennessee