Giant nonlinear gain coefficient of an InAs/AlGaInAs quantum dot laser

L. F. Lester, N. B. Terry, A. J. Moscho, M. L. Fanto, N. A. Naderi, Y. Li, V. Kovanis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

The linewidth enhancement factor (LEF) and nonlinear gain coefficient of an InAs/AlGalnAs quantum dot (QD) laser are measured using an injection locking technique. The nonlinear gain coefficient was found by curve-fitting the measured LEF as a linear function of the output power. The LEF of the InAs/AlGalnAs quantum dot laser was measured to be 1.2 to 8.6 at output powers from 2 to 10.2 mW, leading to a corresponding nonlinear gain coefficient of 1.4 × 10-14 cm3. This value for the nonlinear gain coefficient is three orders of magnitude higher than the typical quantum well nonlinear gain coefficient of 10-17 cm3. Consequently we expect that the dynamics under optical injection and external feedback of this type of quantum dot laser will be dramatically different than in quantum well lasers, suggesting that a careful re-examination of the dynamics of this type of laser is needed.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume6889
DOIs
Publication statusPublished - 2008
Externally publishedYes
EventPhysics and Simulation of Optoelectronic Devices XVI - San Jose, CA, United States
Duration: Jan 21 2008Jan 24 2008

Other

OtherPhysics and Simulation of Optoelectronic Devices XVI
CountryUnited States
CitySan Jose, CA
Period1/21/081/24/08

Fingerprint

Quantum dot lasers
Linewidth
quantum dots
coefficients
lasers
Quantum well lasers
Curve fitting
augmentation
Semiconductor quantum wells
injection locking
output
Feedback
curve fitting
quantum well lasers
Lasers
examination
quantum wells
injection

Keywords

  • Injection locking
  • Linewidth enhancement factor
  • Non-linear gain
  • Quantum-dash
  • Semiconductor laser

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Lester, L. F., Terry, N. B., Moscho, A. J., Fanto, M. L., Naderi, N. A., Li, Y., & Kovanis, V. (2008). Giant nonlinear gain coefficient of an InAs/AlGaInAs quantum dot laser. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 6889). [68890M] https://doi.org/10.1117/12.767766

Giant nonlinear gain coefficient of an InAs/AlGaInAs quantum dot laser. / Lester, L. F.; Terry, N. B.; Moscho, A. J.; Fanto, M. L.; Naderi, N. A.; Li, Y.; Kovanis, V.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6889 2008. 68890M.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Lester, LF, Terry, NB, Moscho, AJ, Fanto, ML, Naderi, NA, Li, Y & Kovanis, V 2008, Giant nonlinear gain coefficient of an InAs/AlGaInAs quantum dot laser. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 6889, 68890M, Physics and Simulation of Optoelectronic Devices XVI, San Jose, CA, United States, 1/21/08. https://doi.org/10.1117/12.767766
Lester LF, Terry NB, Moscho AJ, Fanto ML, Naderi NA, Li Y et al. Giant nonlinear gain coefficient of an InAs/AlGaInAs quantum dot laser. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6889. 2008. 68890M https://doi.org/10.1117/12.767766
Lester, L. F. ; Terry, N. B. ; Moscho, A. J. ; Fanto, M. L. ; Naderi, N. A. ; Li, Y. ; Kovanis, V. / Giant nonlinear gain coefficient of an InAs/AlGaInAs quantum dot laser. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6889 2008.
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