Title

Ultralow Noise And Supermode Suppression In An Actively Mode-Locked External-Cavity Semiconductor Diode Ring Laser

Abstract

We report what is to our knowledge the lowest phase and amplitude noise characteristics achieved to date in a 10-GHz pulse train produced by the active harmonic mode locking of an external-cavity semiconductor diode laser. Supermode noise has also been suppressed below -140 dBc/Hz by use of a high-finesse fiber Fabry-Perot etalon as an intracavity filter. Novel noise sideband measurements that extend to the Nyquist offset frequency suggest a significant advantage in using harmonic (rather than fundamental) mode locking to produce ultralow-noise pulse trains, owing to the relationship between the noise roll-off frequency and the fundamental cavity frequency. © 2002 Optical Society of America.

Publication Date

5-1-2002

Publication Title

Optics Letters

Volume

27

Issue

9

Number of Pages

719-721

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/OL.27.000719

Socpus ID

0036573911 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0036573911

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