Active stabilization of the DFB laser injection-locked to an external fiber-optic ring resonator Vrije Universiteit Brussel
Spectrally pure lasers are the heart of precision high-end scientific and commercial applications. Self-injection locking of a DFB laser through an external feedback is one of the most promising mechanisms for the laser line narrowing. To provide the effect, a part of the optical radiation emitted by the laser is returned back into the laser cavity. This relatively simple technique allows to design cost-effective narrow-band laser sources based ...