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Fabrication and Testing of Microfluidic Optomechanical Oscillators

Fabrication and Testing of Microfluidic Optomechanical Oscillators

Published on: May 29, 2014

Octave spanning tunable frequency comb from a microresonator.

P Del'Haye¹, T Herr, E Gavartin

¹Max-Planck-Institut für Quantenoptik, Garching, Germany.

Physical Review Letters

|September 10, 2011

Summary

This summary is machine-generated.

Researchers generated an octave-spanning optical frequency comb using a microresonator. This breakthrough enables broader applications in optical frequency metrology and advanced laser systems.

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Area of Science:

Optics and Photonics
Laser Physics
Quantum Optics

Background:

Optical frequency combs are crucial for high-precision measurements.
Microresonator-based frequency combs offer miniaturization potential.
Generating broadband spectra is essential for advanced applications like self-referencing.

Purpose of the Study:

To demonstrate an octave-spanning optical frequency comb generation in a microresonator.
To investigate the tunability and spectral characteristics of the generated comb.
To assess the feasibility of microresonator combs for self-referencing.

Main Methods:

Utilizing a continuous wave (CW) laser to pump a microresonator.
Characterizing the generated optical frequency comb spectrum from 990 to 2170 nm.
Measuring the linewidth of comb components and analyzing pump laser phase noise.
Demonstrating continuous tunability over a free spectral range.

Main Results:

Successfully generated an octave-spanning optical frequency comb (990-2170 nm) without external broadening.
Achieved continuous tunability of the frequency comb.
Investigated the relationship between comb linewidth and pump laser phase noise.
Confirmed the microresonator's capability for generating broad spectra.

Conclusions:

Microresonator-based frequency combs can achieve octave-spanning spectra.
This development is a significant step towards f-2f self-referencing in microresonator systems.
The results pave the way for compact and versatile optical frequency comb sources.