Characterization of a carrier-envelope-offset-stabilized blue- And green-diode-pumped Ti:sapphire frequency comb

Pablo Castro-Marín; Toby Mitchell; Jinghua Sun; Derryck T. Reid

doi:10.1364/OL.44.005270

Characterization of a carrier-envelope-offset-stabilized blue- And green-diode-pumped Ti:sapphire frequency comb

Pablo Castro-Marín, Toby Mitchell, Jinghua Sun, Derryck T. Reid^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

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Abstract

Diode-pumping of Ti:sapphire provides a low-cost route to high-quality frequency-comb sources, exploiting the potential of direct diode modulation for wideband control of the carrier-envelope-offset frequency. We present here an f_REP- and f_CEO-locked, directly diode-pumped Ti:sapphire frequency comb, producing 66-fs pulses at 800 nm and employing f -to-2f interferometry and current modulation of a 462-nm blue laser diode to achieve a stabilization bandwidth extending to ∼70 kHz. Characterizations of the f_REP and f_CEO phase noise are compared to relative intensity noise spectra of the pump diodes to provide insights into how the diode design and performance transfer into the comb stability, suggesting a lower contribution to f_REP and f_CEO noise from the blue laser diode than from the green diode.

Original language	English
Pages (from-to)	5270-5273
Number of pages	4
Journal	Optics Letters
Volume	44
Issue number	21
Early online date	27 Sept 2019
DOIs	https://doi.org/10.1364/OL.44.005270
Publication status	Published - 1 Nov 2019

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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AB - Diode-pumping of Ti:sapphire provides a low-cost route to high-quality frequency-comb sources, exploiting the potential of direct diode modulation for wideband control of the carrier-envelope-offset frequency. We present here an fREP- and fCEO-locked, directly diode-pumped Ti:sapphire frequency comb, producing 66-fs pulses at 800 nm and employing f -to-2f interferometry and current modulation of a 462-nm blue laser diode to achieve a stabilization bandwidth extending to ∼70 kHz. Characterizations of the fREP and fCEO phase noise are compared to relative intensity noise spectra of the pump diodes to provide insights into how the diode design and performance transfer into the comb stability, suggesting a lower contribution to fREP and fCEO noise from the blue laser diode than from the green diode.

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Characterization of a carrier-envelope-offset-stabilized blue- And green-diode-pumped Ti:sapphire frequency comb

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