High-Q optical comb based on a photonic harmonic potential (Conference Presentation)

Sylvain Combrié; Gaëlle Lehoucq; Grégory Moille; Aude Martin; Alfredo De Rossi

doi:10.1117/12.2287858

14 March 2018 High-Q optical comb based on a photonic harmonic potential (Conference Presentation)

Sylvain Combrié, Gaëlle Lehoucq, Grégory Moille, Aude Martin, Alfredo De Rossi

Proceedings Volume 10540, Quantum Sensing and Nano Electronics and Photonics XV; 1054026 (2018) https://doi.org/10.1117/12.2287858
Event: SPIE OPTO, 2018, San Francisco, California, United States

Abstract

Multi-mode optical microcavities have enabled the emergence of compact optical sources such as parametric oscillators and nonlinear combs for quantum information and metrology. Efficient nonlinear interactions take place, owing to a combination of large Q factor, small modal volume and large material index. The control of the frequency spacing of the resonances is also a critical aspect. Here we demonstrate an effective harmonic potential for photons owning to the concept of bichromatic lattice in a photonic crystal structure. Wide gap semiconductor material, i.e. GaInP, is used here to prevent any detrimental non-linear absorption such as two photons. The experimental evidence is given through the statistical analysis of the frequency spacing of high-Q resonances over 68 cavities. For each structure, the complex reflection spectra is measured using Optical Coherent Tomography (OCT) with a resolution of 20 MHz. The dispersion of the resonator is extracted through a polynomial fit. It appears to be small and more importantly crosses zero as the radius of the holes is changed. Moreover, each of these resonators have many modes, typically four, with loaded Q factor in the 10^5 to 7x10^5 range and intrinsic Q factor well above one million. Equi-spaced resonances in a very compact structure should lead to ultra-strong nonlinear interactions, particularly resonantly enhanced Four Wave Mixing and parametric oscillation.

Conference Presentation

Citation Download Citation

Sylvain Combrié, Gaëlle Lehoucq, Grégory Moille, Aude Martin, and Alfredo De Rossi "High-Q optical comb based on a photonic harmonic potential (Conference Presentation)", Proc. SPIE 10540, Quantum Sensing and Nano Electronics and Photonics XV, 1054026 (14 March 2018); https://doi.org/10.1117/12.2287858

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available