Abstract
In this work we propose and demonstrate a single mode fiber design that alleviates photo darkening. The fiber design is based on a reduced signal mode to gain material overlap which is found to reduce the induced losses of PD. For the fiber, saturated photo darkening operation is observed after 1500 hours operation with less than 7 % reduction in slope efficiency from 350 W output power in Yb/Al co-doped material. Power scalability up to 5 kW of the RMO fiber design is theoretically predicted.
| Original language | English |
|---|---|
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 7580 |
| Pages (from-to) | 758024 |
| Number of pages | 8 |
| ISSN | 0277-786X |
| DOIs | |
| Publication status | Published - 2010 |
| Externally published | Yes |
| Event | SPIE Photonics West LASE 2010 - San Francisco, United States Duration: 23 Jan 2010 → 28 Jan 2010 |
Conference
| Conference | SPIE Photonics West LASE 2010 |
|---|---|
| Country/Territory | United States |
| City | San Francisco |
| Period | 23/01/2010 → 28/01/2010 |
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