Statistics – Applications
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007natur.450.1214d&link_type=abstract
Nature, Volume 450, Issue 7173, pp. 1214-1217 (2007).
Statistics
Applications
76
Scientific paper
Optical frequency combs provide equidistant frequency markers in the infrared, visible and ultraviolet, and can be used to link an unknown optical frequency to a radio or microwave frequency reference. Since their inception, frequency combs have triggered substantial advances in optical frequency metrology and precision measurements and in applications such as broadband laser-based gas sensing and molecular fingerprinting. Early work generated frequency combs by intra-cavity phase modulation; subsequently, frequency combs have been generated using the comb-like mode structure of mode-locked lasers, whose repetition rate and carrier envelope phase can be stabilized. Here we report a substantially different approach to comb generation, in which equally spaced frequency markers are produced by the interaction between a continuous-wave pump laser of a known frequency with the modes of a monolithic ultra-high-Q microresonator via the Kerr nonlinearity. The intrinsically broadband nature of parametric gain makes it possible to generate discrete comb modes over a 500-nm-wide span (~70THz) around 1,550nm without relying on any external spectral broadening. Optical-heterodyne-based measurements reveal that cascaded parametric interactions give rise to an optical frequency comb, overcoming passive cavity dispersion. The uniformity of the mode spacing has been verified to within a relative experimental precision of 7.3×10-18. In contrast to femtosecond mode-locked lasers, this work represents a step towards a monolithic optical frequency comb generator, allowing considerable reduction in size, complexity and power consumption. Moreover, the approach can operate at previously unattainable repetition rates, exceeding 100GHz, which are useful in applications where access to individual comb modes is required, such as optical waveform synthesis, high capacity telecommunications or astrophysical spectrometer calibration.
Arcizet Olivier
Del'Haye P.
Holzwarth Ronald
Kippenberg Tobias J.
Schliesser Albert
No associations
LandOfFree
Optical frequency comb generation from a monolithic microresonator does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Optical frequency comb generation from a monolithic microresonator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical frequency comb generation from a monolithic microresonator will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1024813