Title :
An integrated 4 x 4-channel multiwavelength laser on InP
Author :
den Besten, J.H. ; Broeke, R.G. ; van Geemert, M. ; Binsma, J.J.M. ; Heinrichsdorff, F. ; van Dongen, T. ; Bente, E.A.J.M. ; Leijtens, X.J.M. ; Smit, M.K.
Author_Institution :
Optoelectronic Devices Group Fac. of Electr. Eng., Eindhoven Univ. of Technol., Netherlands
fDate :
3/1/2003 12:00:00 AM
Abstract :
We present a compact 16-channel digitally tunable laser integrated on InP with the possibility to produce groups of four wavelengths at the same time. The cavity contains two arrays of four semiconductor optical amplifiers (SOAs) with two periodical four-channel intracavity phased arrays (PHASARs) with channel spacings of 100 and 400 GHz. By activating two out of the eight SOAs, 16 different wavelengths can be selected. Light was coupled out of the cavity by waveguides placed in the second focal order of the PHASARs. Reflections from the end facets of the wafer are minimized using mode filters and angled output waveguides.
Keywords :
III-V semiconductors; indium compounds; integrated optics; laser cavity resonators; optical focusing; semiconductor laser arrays; semiconductor optical amplifiers; waveguide lasers; InP; PHASARs; angled output waveguides; channel spacings; compact 16-channel digitally tunable laser; end facets; focal order; integrated 4/spl times/4-channel multiwavelength laser; laser cavity; mode filters; periodical four-channel intracavity phased arrays; semiconductor optical amplifiers; wafer; Channel spacing; Indium phosphide; Optical arrays; Optical coupling; Optical waveguides; Phased arrays; Semiconductor laser arrays; Semiconductor optical amplifiers; Semiconductor waveguides; Tunable circuits and devices;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2002.807922
