Investigations of repetition rate stability of a mode-locked quantum dot semiconductor laser in an auxiliary optical fiber cavity
article
We have investigated experimentally the pulse train (mode beating) stability of a monolithic mode-locked multi-section quantum-dot laser with an added passive auxiliary optical fiber cavity. Addition of the weakly coupled (∼ - 24 dB) cavity reduces the current-induced shift dv / dl of the principal peak in the RF spectrum (the effective pulse repetition frequency) by more than an order of magnitude, from -39.5 to - 2.3 kHz/mA. The rms timing jitter of the pulse train is simultaneously reduced from 1.4 to 0.9 ps. © 2009 IEEE.
TNO Identifier
275961
ISSN
00189197
Source
IEEE Journal of Quantum Electronics, 46(2), pp. 150-157.
Collation
8 p.
Pages
150-157