Authors:	D. Van Thourhout, L. Zhang, W. Yang, B. Miller, N. Sauer, C.R. Doerr
Title:	Compact digitally tunable laser
Format:	International Journal
Publication date:	3/2003
Journal/Conference/Book:	IEEE Photonics Technology Letters
Editor/Publisher:	IEEE,
Volume(Issue):	15(2) p.182-184
DOI:	10.1109/lpt.2002.806863
Citations:	18 (Dimensions.ai - last update: 12/1/2025) 13 (OpenCitations - last update: 3/5/2025) Look up on Google Scholar
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Abstract

We present a new design for a digitally tunable laser
using two waveguide grating routers with different free spectral range. For an -channel device, both the number of required amplifiers and the number of required grating arms scale as the square root of , resulting in a more compact device than previously
demonstrated and better scaleability. Contrary to previously demonstrated devices with a reduced number of amplifiers, all wavelength channels are multiplexed together in one common channel, allowing for a higher output power. Tuning speeds below 10 ns are envisioned. Experimental results are presented.