Wavelength drift suppression for burst-mode tunable EML transmitter
US11594856B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 2019 |
| Grant date | Feb 28, 2023 |
| Priority date | — |
| Expiry date | Aug 3, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J4/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method (900) includes delivering a first bias current (IGAIN) to an anode of gain-section diode (590a) and delivering a second bias current (IPH) to an anode of a phase-section diode (590b). The method also includes receiving a burst mode signal (514) indicative of a burst-on state or a burst-on state, and sinking a first sink current (ISINK) away from the first bias current when the burst mode signal is indicative of the burst-off state. When the burst mode signal transitions to be indicative of the burst-on state from the burst-off state, the method also includes sinking a second sink current away from the second bias current at the anode of the phase-section diode and ceasing the sinking of the first sink current away from the first bias current at the anode of the gain section diode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.