Negative dispersion mirrors for dispersion control in femtosecond lasers: Chirped dielectric mirrors and multi-cavity Gires-Tournois interferometers

R. Szipöcs, A. Köházi-Kis, S. Lakó, P. Apai, A. P. Kovács, G. DeBell, L. Mott, A. W. Louderback, A. V. Tikhonravov, M. K. Trubetskov

Research output: Contribution to journalArticle

90 Citations (Scopus)

Abstract

Chirped dielectric laser mirrors have been known for years as useful devices for broadband feedback and dispersion control in femtosecond pulse lasers. First we present a novel design technique referred to as frequency domain synthesis of chirped mirrors. These mirrors exhibit high reflectivity and nearly constant group delay over 150 THz supporting generation of sub-5-fs pulses in the visible. Afterwards, multi-cavity thin-film Gires-Tournois interferometers are introduced for the first time as an alternative approach to realize "negative dispersion mirrors". These novel dielectric high reflectors exhibit reflectivities R > 99.97% and a negative group delay dispersion of -50 ± 1 fs2 over a bandwidth of 56 THz. Dispersive properties originate from coupled resonances in multiple λ/2 cavities embedded in the layer structure. The general structure and performance of multicavity Gires-Tournois interferometers are compared to that of chirped dielectic mirrors and their distinct applications are discussed.

Original languageEnglish
Pages (from-to)S51-S57
JournalApplied Physics B: Lasers and Optics
Volume70
Issue numberSUPPL. 1
DOIs
Publication statusPublished - Dec 1 2000

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Negative dispersion mirrors for dispersion control in femtosecond lasers: Chirped dielectric mirrors and multi-cavity Gires-Tournois interferometers'. Together they form a unique fingerprint.

  • Cite this

    Szipöcs, R., Köházi-Kis, A., Lakó, S., Apai, P., Kovács, A. P., DeBell, G., Mott, L., Louderback, A. W., Tikhonravov, A. V., & Trubetskov, M. K. (2000). Negative dispersion mirrors for dispersion control in femtosecond lasers: Chirped dielectric mirrors and multi-cavity Gires-Tournois interferometers. Applied Physics B: Lasers and Optics, 70(SUPPL. 1), S51-S57. https://doi.org/10.1007/s003400000303