Distributed feedback (DFB) laser diodes are single-frequency laser sources that can be produced in volume at a low cost. They represent compact and reliable laser technology and are widely used in telecom and sensing applications. They can be...

When imaging the living human eye, even if a person has perfect vision, blur caused by ocular aberrations of the eye limits resolution. This blur rapidly fluctuates due to a number of factors, such as the impact of the heartbeat. Consequently, it is...