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Phase locking of two fiber lasers with time-delayed coupling.
Micha Nixon1, Moti Fridman, Eitan Ronen
1Weizmann Institute of Science, Department of Physics of Complex Systems, P.O. Box 26, Rehovot 76100, Israel. michan@weizmann.ac.il
Optics Letters
|June 17, 2009
Summary
Stable phase locking in coupled fiber lasers is achieved even with long time delays. This research demonstrates that phase locking remains invariant to extended coupling delay lines up to 4 km.
Area of Science:
- Optics and Photonics
- Laser Physics
- Fiber Optics
Background:
- Phase locking is crucial for enhancing the performance of coupled laser systems.
- Long time delays in coupling can destabilize phase locking in traditional setups.
Purpose of the Study:
- To investigate the feasibility of achieving stable phase locking in coupled fiber lasers with long time delays.
- To demonstrate both isochronal and achronal phase locking under extended delay conditions.
Main Methods:
- Utilizing two coupled fiber laser arrangements.
- Implementing long-time-delayed coupling lines, extending up to 4 km.
- Experimentally verifying the stability and invariance of phase locking.
Main Results:
- Stable isochronal and achronal phase locking were successfully demonstrated.
- Phase locking remained stable with coupling delay lines as long as 4 km.
- The phase locking phenomenon was observed to be invariant to the introduced time delay.
Conclusions:
- Coupled fiber laser systems can maintain stable phase locking despite significant time delays.
- The invariance of phase locking to time delay opens possibilities for novel laser designs and applications.
- This work advances the understanding of dynamics in delayed coupled optical systems.
