Tuning the external optical feedback-sensitivity of a passively mode-locked quantum dot laser

R. Raghunathan, F. Grillot, J. K. Mee, D. Murrell, V. Kovanis, L. F. Lester

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

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.

Original languageEnglish
Article number041112
JournalApplied Physics Letters
Volume105
Issue number4
DOIs
Publication statusPublished - Jul 28 2014

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Tuning the external optical feedback-sensitivity of a passively mode-locked quantum dot laser'. Together they form a unique fingerprint.

Cite this