Reconfigurable monolithic quantum dot passively mode-locked lasers

Y.-C. Xin; Y. Li; V. Kovanis; L. F. Lester

doi:10.1117/12.767328

5 February 2008 Reconfigurable monolithic quantum dot passively mode-locked lasers

Y.-C. Xin, Y. Li, V. Kovanis, L. F. Lester

Proceedings Volume 6909, Novel In-Plane Semiconductor Lasers VII; 690908 (2008) https://doi.org/10.1117/12.767328
Event: Integrated Optoelectronic Devices 2008, 2008, San Jose, California, United States

Abstract

The dynamical response of a quantum dot photonic integrated circuit formed with a combination of passive and active gain cells is investigated. When these cells are appropriately biased and positioned within the multi-section laser cavity, fundamental frequency and harmonic mode-locking at repetition rates from 7.2 GHz to 115 GHz are found. Carefully engineered multi-section configurations that include a passive waveguide section significantly lower the pulse width up to 34% as well as increase the peak pulsed power by 49% in comparison to conventional two-section configurations that are formed on the identical device under the same average power. In addition an ultra broad operation range with pulse widths below ten picoseconds is obtained with a 3^rd-harmonic mode-locking configuration. The fundamental design principles for using QDs in mode-locked lasers are presented to explain the observed results and to describe why QDs are particularly well-suited for reconfigurable laser devices.

Citation Download Citation

Y.-C. Xin, Y. Li, V. Kovanis, and L. F. Lester "Reconfigurable monolithic quantum dot passively mode-locked lasers", Proc. SPIE 6909, Novel In-Plane Semiconductor Lasers VII, 690908 (5 February 2008); https://doi.org/10.1117/12.767328

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