Realization of a new concept for visible frequency division: phase locking of harmonic and sum frequencies
- 15 May 1990
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 15 (10), 532-534
- https://doi.org/10.1364/ol.15.000532
Abstract
We explore and demonstrate the feasibility of an optical-frequency-to-radio-frequency division method that is based on visible or near-infrared laser oscillators only. Comparing harmonic and sum frequencies, we generate the arithmetic average of two visible frequencies. Cascading n stages provides difference-frequency division by 2n. For a demonstration we have phase locked the second harmonic and the sum frequency of two independent diode lasers.Keywords
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