The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A frequency comb is phase-locked to a CW laser with an electro-optic-modulator providing 1.6 MHz feedback bandwidth. Residual phase noise is as low as -94 dBc/Hz, and the comb remained locked under mechanical vibration of up to 1.9 g.
We locked a laser to a cavity using an all-digital Pound-Drever-Hall feedback system. By performing the demodulation and feedback controller digitally the low frequency noise performance was improved compared to a conventional analog system.
External redirection of light from one propagation direction of a ring laser back into the opposite direction forces uni-directional operation. We investigated this so-called self-injection locking effect and achieved single-frequency operation.
We report on the effect of external optical feedback on a quantum-dash-based passive mode-locked laser. We demonstrate a RF linewidth narrowing from 5.5 kHz to 800 Hz at a 10 GHz frequency.
The mode-locking beat stability of a monolithic mode-locked quantum-dot laser is improved by an auxiliary mode-comb. A tenfold enhancement of the beating carrier red-shift and a substantial improvement of the RMS timing jitter is achieved.
The impact of optical feedback on the performance of a monolithic InAs/GaAs quantum dot passively mode-locked laser is experimentally investigated. We show that a feedback level greater than -25 dB can be detrimental to mode-locking operation.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.