Tuning the external optical feedback-sensitivity of a passively mode-locked quantum dot laser
Abstract
The external optical feedback-sensitivity of a two-section, passively mode-locked quantum dot laser operating at elevated temperature is experimentally investigated as a function of absorber bias voltage. Results show that the reverse-bias voltage on the absorber has a direct impact on the damping rate of the free-running relaxation oscillations of the optical signal output, thereby enabling interactive external control over the feedback-response of the device, even under the nearly resonant cavity configuration. The combination of high temperature operation and tunable feedback-sensitivity is highly promising from a technological standpoint, in particular, for applications requiring monolithic integration of multi-component architectures on a single chip in order to accomplish, for instance, the dual-objectives of stable pulse quality and isolation from parasitic reflections.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jul 28, 2014
- Source ID
- 10.1063/1.4891576
Entities
People
- D. Murrell
- F. Grillot
- J. K. Mee
- L. F. Lester
- R. Raghunathan
- V. Kovanis
Organizations
- Air Force Office of Scientific Research
- University of New Mexico
- Virginia Tech