Title

Comparison Between Difference-Frequency Generation And Parametric Fluorescence In Quasi-Phase-Matched Lithium Niobate Stripe Waveguides

Abstract

Tuning curves and gain are two relevant parameters for integrated optical parametric oscillators. We show in this paper that they can be determined with a good precision without building a high-finesse cavity by measurement of the optical parametric fluorescence and difference-frequency generation. In the first part of this paper, we compare theoretically the guided optical parametric fluorescence and the guided difference-Frequency generation in the quasi-phase matching configuration. In the second part, we compare experimental results on optical parametric fluorescence in the 1.2-2.2-μm region and optical difference-frequency generation from a 1.55-μm laser diode using a pump wavelength between 775-795 nm in quasi-phase-matched lithium niobate stripe waveguides. This comparison shows that the gain measured by both methods is identical, but, while parametric fluorescence allows us to obtain the quasi-phase-matching curve, the difference-frequency generation gives a simpler and more accurate measurement of the gain. The combination of these two techniques provides therefore a powerful tool for evaluating the different fabrication processes of the nonlinear waveguides, without actually fabricating a parametric oscillator.

Publication Date

1-1-1996

Publication Title

IEEE Journal on Selected Topics in Quantum Electronics

Volume

2

Issue

2

Number of Pages

385-394

Document Type

Review

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/2944.577399

Socpus ID

0030156097 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0030156097

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