Laser diode generating passive mode and method of creating optical pulse using the same diode
US7720128B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2006 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | May 22, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/1203
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided are a laser diode generating passive mode locking that does not contain non-linear sector of an SA, and a method of creating an optical pulse using the same diode. The laser diode includes a DFB sector serving as a reflector and a gain sector. The gain sector is connected to the DFB sector and includes an as-cleaved facet formed at the end of the gain sector. When a current less than a threshold current is applied to the DFB sector to allow the DFB sector to operate as a reflector, passive mode locking occurs swiftly and therefore a sector of the SA is not required, which makes manufacturing simple. Also, it is possible to effectively extend a frequency variable region compared to using of the SA.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.