Abstract
This paper reports on the repetition frequency stability of InAs/InP quantum-dash-based mode locked lasers emitting in the 1.55-μm telecom window and of a long-term frequency stabilization schemes. We discuss the main noise sources that affect the frequency stability. In free running operation, quantum-dash-based mode locked lasers demonstrate an initial long-term stability of ∼ 10-7. In order to improve it, we developed different approaches based on electrical feedback and optical feedback loops. The stabilization systems exploit the bias-dependent frequency drift and the optical feedback sensitivity to keep repetition frequency in lock for an extensive period of time with a stability of 1.5 × 10-9.
| Original language | English |
|---|---|
| Article number | 7117353 |
| Pages (from-to) | 46-52 |
| Number of pages | 7 |
| Journal | IEEE Journal on Selected Topics in Quantum Electronics |
| Volume | 21 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1 Nov 2015 |
| Externally published | Yes |
Keywords
- Mode locked semiconductor lasers
- long-term stabilization
- quantum dash lasers