Abstract
We present a theoretical analysis of the timing jitter in monolithic multisection mode-locked DBR lasers which is shown to agree well with experimental measurements. The analysis uses a traveling-wave equation model with Langevin spontaneous emission noise and includes the important physical effects of gain nonlinearities, self-phase modulation, and the presence of DBR filtering. It is found that spontaneous noise limits low-jitter operation. The impact of frequency detuning on the timing jitter is studied and the effects of laser parameters, such as linewidth enhancement factor and gain section length, are discussed for achieving low-jitter pulses.
| Original language | English |
|---|---|
| Pages (from-to) | 1216-1220 |
| Number of pages | 5 |
| Journal | IEEE Journal of Quantum Electronics |
| Volume | 33 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 1 Jul 1997 |
Funding
Manuscript received November 11, 1996; revised March 3, 1997. This paper was supported by the U.K. Engineering and Physical Sciences Research Council and the European Union. B. Zhu, I. H. White, R. V. Penty, and A. Wonfor are with the Department of Electrical and Electronic Engineering, Bristol University, Bristol BS8 1TR, England, U.K. E. Lach is with Alcatel Telecom Research Division Stuttgart, Alcatel SEL AG Department, D-70435 Stuttgart, Germany. H. D. Summers is with the Department of Physics, University of Wales College of Cardiff, Cardiff CF1 3TH, Wales, U.K. Publisher Item Identifier S 0018-9197(97)04704-0.
Keywords
- Mode-locked semiconductor lasers
- Short pulse generation
- Timing jitter
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering