Abstract

In this Letter, a design for a tapered InAs/InGaAs quantum dot semiconductor optical amplifier is proposed and experimentally evaluated. The amplifier’s geometry was optimized in order to reduce gain saturation effects and improve gain efficiency and beam quality. The experimental measurements confirm that the proposed amplifier allows for an elevated optical gain in the saturation regime, whereas a five-fold increase in the coupling efficiency to a standard single mode optical fiber is observed, due to the improvement in the beam quality factor M2 of the emitted beam.

© 2013 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Enhancement of gain recovery rate and cross-gain modulation bandwidth using a two-electrode quantum-dot semiconductor optical amplifier

Yu Yi, Huang Lirong, Xiong Meng, Tian Peng, and Huang Dexiu
J. Opt. Soc. Am. B 27(11) 2211-2217 (2010)

Slow and fast dynamics of gain and phase in a quantum dot semiconductor optical amplifier

T. Vallaitis, C. Koos, R. Bonk, W. Freude, M. Laemmlin, C. Meuer, D. Bimberg, and J. Leuthold
Opt. Express 16(1) 170-178 (2008)

Static gain saturation in quantum dot semiconductor optical amplifiers

Christian Meuer, Jungho Kim, Matthias Laemmlin, Sven Liebich, Amir Capua, Gadi Eisenstein, Alexey R. Kovsh, Sergey S. Mikhrin, Igor L. Krestnikov, and Dieter Bimberg
Opt. Express 16(11) 8269-8279 (2008)

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