Abstract

Passively mode-locked fibre soliton lasers have become attractive as sources for laboratory and telecommunications applications due to their properties of simplicity, tunability, and subpicosecond operation. However, such lasers tend to suffer from instability in the repetition rate, which for many applications is unacceptable. Recently, though, stable harmonic passive mode-locking was observed in a ring laser configuration.¹ In this paper, we present a detailed experimental study of time jitter in such a laser and demonstrate that a jitter as low as 600 fs can be obtained.

© 1994 IEEE