133 Citations (Scopus)

Abstract

A detailed study of the design issues relevant to long-wavelength monolithic mode-locked lasers is presented. Following a detailed review of the field, we have devised a validated travelling wave model to explore the limits of mode-locking in monolithic laser diodes, not only in terms of pulse duration and repetition rate, but also in terms of stability. It is shown that fast absorber recovery is crucial for short pulse width, that the ratio of gain to absorption saturation is key in accessing ultrashort pulses and that low alpha factors give only modest benefit. Finally, optimized contact layouts are shown to greatly enhance pulse stability and the overall operational success. The design rules show high levels of consistency with published experimental data.

Original languageEnglish
Pages (from-to)1-30
Number of pages30
JournalNew Journal of Physics
Volume6
DOIs
Publication statusPublished - 26 Nov 2004

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Long-wavelength monolithic mode-locked diode lasers. / Williams, K. A.; Thompson, M. G.; White, I. H.

In: New Journal of Physics, Vol. 6, 26.11.2004, p. 1-30.

Research output: Contribution to journalReview article

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AB - A detailed study of the design issues relevant to long-wavelength monolithic mode-locked lasers is presented. Following a detailed review of the field, we have devised a validated travelling wave model to explore the limits of mode-locking in monolithic laser diodes, not only in terms of pulse duration and repetition rate, but also in terms of stability. It is shown that fast absorber recovery is crucial for short pulse width, that the ratio of gain to absorption saturation is key in accessing ultrashort pulses and that low alpha factors give only modest benefit. Finally, optimized contact layouts are shown to greatly enhance pulse stability and the overall operational success. The design rules show high levels of consistency with published experimental data.

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