Wavelength Switching Speed in Semiconductor Ring Lasers With On-Chip Filtered Optical Feedback

Author

Khoder, Mulham ; Nguimdo, Romain Modeste ; Leijtens, Xaveer ; Bolk, Jeroen ; Danckaert, Jan ; Verschaffelt, G.

Author_Institution

Appl. Phys. Res. Group (APHY), Vrije Univ. Brussel, Brussels, Belgium

Volume

26

Issue

5

fYear

2014

fDate

1-Mar-14

Firstpage

520

Lastpage

523

Abstract

We experimentally and numerically characterize the wavelength switching speed of a tunable semiconductor ring laser using filtered optical feedback. The feedback is realized employing two arrayed-waveguide gratings to split/recombine light into different wavelength channels. The wavelength tuning and switching is controlled by changing the currents injected in semiconductor optical amplifiers in the feedback section. A wavelength switching speed of a few nanoseconds is achieved. We investigate also the effect of the feedback parameters and noise strength on the wavelength switching speed.

Keywords

arrayed waveguide gratings; integrated optoelectronics; laser feedback; laser noise; laser tuning; numerical analysis; optical switches; ring lasers; semiconductor optical amplifiers; arrayed-waveguide gratings; current injection; feedback parameters; noise strength; on-chip filtered optical feedback; semiconductor optical amplifiers; tunable semiconductor ring laser; wavelength channels; wavelength switching speed; wavelength tuning; Delays; Laser feedback; Logic gates; Optical switches; Ring lasers; Semiconductor lasers; Filtered feedback; packet switching; photonic integrated circuits; semiconductor ring lasers; tunable lasers;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2013.2296398

Filename

6693703