Abstract

We demonstrate room-temperature slow light that is electrically and optically controllable by using a quantum-dot (QD) semiconductor optical amplifier (SOA) at zero and low bias below the transparency current. The absorption spectrum of the QD SOA exhibits a spectral dip with a corresponding group-index dispersion and group delay owing to coherent population oscillation caused by the interaction of pump and probe laser light near resonance of the first heavy-hole–conduction-state transition. At an optical pump power of 0.3mW inside the single-mode waveguide without current injection, a group-index change of 3.0 with a bandwidth of 2GHz was measured. This group-index change can be controlled by injection of electrical current and by changing the optical pump power.

© 2006 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Slow-to-fast light using absorption to gain switching in quantum-well semiconductor optical amplifier

Piotr Konrad Kondratko and Shun-Lien Chuang
Opt. Express 15(16) 9963-9969 (2007)

Tunable slow light device using quantum dot semiconductor laser

P. C. Peng, C. T. Lin, H. C. Kuo, W. K. Tsai, J. N. Liu, S. Chi, S. C. Wang, G. Lin, H. P. Yang, K. F. Lin, and J. Y. Chi
Opt. Express 14(26) 12880-12886 (2006)

Slow light in semiconductor quantum wells

Pei-Cheng Ku, Forrest Sedgwick, Connie J. Chang-Hasnain, Phedon Palinginis, Tao Li, Hailin Wang, Shu-Wei Chang, and Shun-Lien Chuang
Opt. Lett. 29(19) 2291-2293 (2004)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription