Atomically referenced 1-GHz optical parametric oscillator frequency comb

Richard A. McCracken, Karolis Balskus, Zhaowei Zhang, Derryck Telford Reid

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)
68 Downloads (Pure)


The visible to mid-infrared coverage of femtosecond optical
parametric oscillator (OPO) frequency combs makes them attractive
resources for high-resolution spectroscopy and astrophotonic spectrograph
calibration. Such applications require absolute traceability and wide combtooth
spacing, attributes which until now have remained unavailable from
any single OPO frequency comb. Here, we report a 1-GHz Ti:sapphire
pumped OPO comb whose repetition and offset frequencies are referenced
to Rb-stabilised microwave and laser oscillators respectively. This
technique simultaneously achieves fully stabilized combs from both the
Ti:sapphire laser and the OPO with sub-MHz comb-tooth linewidths, multihour
locking stability and without the need for super-continuum generation.
©2015 Optical Society of America
Original languageEnglish
Pages (from-to)16466-16472
Number of pages7
JournalOptics Express
Issue number12
Publication statusPublished - 12 Jun 2015


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