Electrically injected GeSn lasers on Si operating up to 100 K
Abstract
Monolithic lasers on Si have long been anticipated as an enabler of full photonic integration, and significant progress in GeSn material development shows promise for such laser devices. While there are many reports focused on optically pumped lasers, in this work, we demonstrate electrically injected GeSn lasers on Si. We grew a GeSn/SiGeSn heterostructure diode on a Si substrate in a ridge waveguide laser device and tested it under pulsed conditions, giving consideration to the structure design to enhance the carrier and optical confinement. The peak linewidth of 0.13 nm (0.06 meV) and injection current curves indicated lasing, which was observed up to 100 K with emission peaks at 2300 nm. We recorded a threshold of 598 A / c m 2 at 10 K. The peak power and external quantum efficiency were 2.7 mW/facet and 0.3%, respectively. The results indicate advances for group-IV-based lasers, which could serve as a promising route for laser integration on Si.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Aug 05, 2020
- Source ID
- 10.1364/optica.395687
Entities
People
- Baohua Li
- Greg Sun
- Gregory J. Salamo
- Grey Abernathy
- Huong Q Tran
- Jifeng Liu
- Joe Margetis
- John Tolle
- Joshua M. Grant
- Richard Soref
- Shui-Qing Yu
- Solomon Ojo
- Sylvester Amoah
- Wei Du
- Yiyin Zhou
- Yong-hang Zhang
- Yuanhao Miao
Organizations
- Air Force Office of Scientific Research