Ultrafast dynamics of quantum-dot semiconductor optical amplifiers

van der Poel, Mike; Hvam, Jørn M.
October 2007
Journal of Materials Science: Materials in Electronics;Oct2007 Supplement, Vol. 18, p51
Academic Journal
We report on a series of experiments on the dynamical properties of quantum-dot semiconductor optical amplifiers. We show how the amplifier responds to one or several ultrafast (170 fs) pulses in rapid succession and our results demonstrate applicability and ultimate limitations to application of quantum-dot amplifiers in e.g. amplification of signals in a telecommunications system. We also review experiments on pulse propagation control and show the possibility to slow down or speed up 170 fs pulses in a quantum-dot based device.


Related Articles

  • Current source enables op amp's output to go to ground. Chan, Frank // EDN;8/5/2004, Vol. 49 Issue 16, p84 

    This article discusses the LM324 as a cost-effective choice for an optical amplifier, specially when one needs to apply ground-level inputs. Although its output purportedly includes ground, its poor current-sinking capability limits the applications. One can add an external current-sinking...

  • Transmultiplexing combines, converts 1310 to 1550 nm.  // Laser Focus World;Aug2005, Vol. 41 Issue 8, p11 

    Focuses on the use of nonlinear polarization rotation in a single semiconductor optical amplifier. Purpose on the application of transmultiplexing technique; Means to avoid the bottleneck of optical-electrical-optical conversion; Adjustment of the output polarization filter.

  • Self-seeded reflective semiconductor optical amplifier based optical transmitter for up-stream WDM-PON link. Kang, J.-M.; Kim, T.-Y.; Choi, I.-H.; Lee, S.-H.; Han, S.-K. // IET Optoelectronics;Apr2007, Vol. 1 Issue 2, p77 

    A novel up-stream transmitter for wavelength division multiplexed-passive optical network (WDM-PON) using a self-seeded reflective semiconductor optical amplifier (RSOA) was proposed. The RSOA was self-seeded by an amplified spontaneous emission itself using a fibre Bragg grating without an...

  • Optical clock recovery from 10-Gb/s NRZ signal after propagation on 100 km of DS, NZD or SR installed fiber. Betti, S.; Curti, F.; Duca, E.; Monterosso, S.; Reale, A.; Tosi-Beleffi, G. M. // Microwave & Optical Technology Letters;2/5/2005, Vol. 44 Issue 3, p264 

    An optical clock has been experimentally recovered by an actively mode-locked fiber ring based on a semiconductor optical amplifier (SOA) from a 10-Gb/s NRZ data stream after propagation on 100 km of installed fiber (either DS, or NZD, or SR). The results indicate the flexibility and robustness...

  • A large dynamic-range self-adjusting output-power laser device. Lu, Z. G.; Grover, C. P. // Microwave & Optical Technology Letters;12/20/2004, Vol. 43 Issue 6, p532 

    We investigate a stable semiconductor fiber-ring laser (SFRL) whose output power can be controlled by external light injection. Based on this SFRL, we develop a novel laser for keeping its output power approximately constant when the input power is changed over a dynamic range of 17 dB....

  • Demonstration of an all-optical logic OR gate using gain saturation in an SOA. Hamie, Ali; Sharaiha, Ammar; Guegan, Mikael // Microwave & Optical Technology Letters;10/5/2003, Vol. 39 Issue 1, p39 

    In this paper, the all-optical realization of a logic OR gate using gain saturation in a standard semiconductor optical amplifier (SOA) is successfully experimentally demonstrated. This reported feasibility study shows the all-optical OR function can be easily achieved with an extinction ratio...

  • Optical regeneration using a feedforward semiconductor optical amplifier with chirp-controlled filtering. Conforti, Evandro; Gallep, Cristiano M.; Bordonalli, Aldário C.; Kang, Sung-Mo (Steve) // Microwave & Optical Technology Letters;9/20/2001, Vol. 30 Issue 6, p438 

    Optical pulse regeneration and reshaping using nonlinear optical pulse amplification followed by a chirp-controlled filtering is simulated. The nonlinear amplification and chirp control are obtained by feedforward current injection in a semiconductor optical amplifier. The nonlinear...

  • Monolithically integrated external cavity wavelength tunable laser using beam steering controller. Kim, K. H.; Kwon, O. K.; Kim, J.-H.; Sim, E. D.; Kim, H. S.; Oh, K. R. // Electronics Letters;10/13/2005, Vol. 41 Issue 21, p1173 

    A Littrow-configured grating-coupled external cavity wavelength tunable laser monolithically integrated with a semiconductor optical amplifier, an etched grating, and a beam steering controller (BSC) is demonstrated. Using incidence angle variation induced by current injection into the BSC...

  • Characteristics of nondegenerate four-wave mixing in electroabsorption modulator. Mori, Takashi; Kawaguchi, Hitoshi // Applied Physics Letters;8/9/2004, Vol. 85 Issue 6, p869 

    The characteristics of nondegenerate four-wave mixing (FWM) in an electroabsorption modulator are reported. The input power dependence of FWM intensity agrees well with theoretical results based on third-order nonlinearity over a wide input power range of 16 dB. The detuning characteristics of...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics