Abstract
In this paper, we derive analytical expressions for finite gain, finite bandwidth laser frequency locking systems. The common case of Drever-Hall (FM sideband) locking to a Fabry-Perot cavity is discussed, using a proportional + integral (PI) controller as an example. The effects of nonnegligible loop time-delay on stability are discussed, and an optimal design procedure for a frequency locking system is given.
Original language | English |
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Pages (from-to) | 532-540 |
Number of pages | 9 |
Journal | IEEE Journal of Quantum Electronics |
Volume | 33 |
Issue number | 4 |
DOIs | |
State | Published - Apr 1997 |
Keywords
- Fabry-Perot resonators
- Feedback systems
- Frequency control
- Frequency-locked loop
- Laser stability