Frequency setting of a multisection laser diode taking into account thermal effects
US7483453B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2003 |
| Grant date | Jan 27, 2009 |
| Priority date | — |
| Expiry date | Jul 18, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/1209
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A system in which the controller (24) of a multi section diode laser such as a SG-DBR (10) is configured so that the laser can be swept rapidly in a pre-determined frequency direction through a series of frequency points by asserting a pre-calibrated series of sets of control input values to the sections of the diode laser, wherein the frequency points are obtained from cavity modes in a plurality of different supermodes, and the sets of control input values are pre-determined to take account of thermal transients that are known to arise from jumps in the output modes that occur when sweeping through the pre-calibrated series of sets of control input values in the pre-determined frequency direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.