Patent 7656914 was granted and assigned to Bookham Technology on February, 2010 by the United States Patent and Trademark Office.
An optical signal is produced from a direct modulation resonant cavity device, such as directly-modulated diode laser having an electrode divided into multiple sections. Each section is driven with an electrical waveform such that a time delay is introduced between sections so as to ensure that the different sections reach their peaks at slightly different times.