Fiber coupled laser source pump with wavelength division multiplexer, isolator, tap filter, and photodetector
US10746933B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2017 |
| Grant date | Aug 18, 2020 |
| Priority date | — |
| Expiry date | Jun 1, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/40
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A pump laser package may include an input fiber to send signal light on a first optical path inside a package, a source to send pump light on a second optical path inside the package, and an output fiber on a third optical path inside the package. The pump laser package may include a WDM filter inside the package to receive the signal light on the first optical path and send the signal light on the third optical path, and receive the pump light on the second optical path and send the pump light on the third optical path. The pump laser package may include an isolator inside the package to transmit the signal light in a first direction, and block the signal light in a second direction, or a photo-diode to receive a portion of the signal light sent on a fourth optical path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.