Uncooled DBR laser directly Modulated at 3.125 gb/s as athermal transmitter for low-cost WDM systems

作者：Yiran Liu, A.R. Davies, J. D. Ingham, Richard V. Penty, I.H. White · 发表于：IEEE Photonics Technology Letters · 年份：2005 · DOI：10.1109/lpt.2005.856367 · 被引用次数：25 · 研究领域：Semiconductor Lasers and Optical Devices、Optical Network Technologies、Photonic and Optical Devices

An uncooled three-section tunable distributed Bragg reflector laser is demonstrated as an athermal transmitter for low-cost uncooled wavelength-division-multiplexing (WDM) systems with tight channel spacing. A /spl plusmn/0.02-nm thermal wavelength drift is achieved under continuous-wave operation up to 70/spl deg/C. Dynamic sidemode suppression ratio of greater than 35 dB is consistently obtained under 3.125-Gb/s direct modulation over a 20/spl deg/C-70/spl deg/C temperature range, with wavelength variation of as low as /spl plusmn/0.2 nm. This indicates that more than an order of magnitude reduction in coarse WDM channel spacing is possible using this source.