Injection-Locked Laser Unit

Our External Cavity Diode Lasers (ECDLs) offer narrow linewidths and excellent stability in a compact package. However, real-world atomic sensors and experiments often require more optical power than can be delivered by a single direct diode. 

Injection locking is a well-established method for generating more optical power, while retaining the performance and narrow linewidth of an ECDL. A seed ECDL is coupled into the optical cavity of a non-AR-coated higher power diode without an external cavity, stimulating emission at the desired frequency. Compared to Tapered Amplifiers (TAs), Injection Locking has better beam quality, lower phase and ntensity noise, and lower risk of equipment damage. However, injection locking requires stable alignments and is often sensitive to environmental perturbation, necessitating additional servos and frequent re-alignment. 

Leveraging our experience building compact and ruggedized laser systems for field use, AOSense has developed an extremely compact integrated injection locking system with excellent passive stability. This system can either be fully self-contained with both the seed and
Injection Locked Amplifier (ILA) or have a fiber input to act as a gain-stage for an existing seed laser.