A single-frequency, diode-pumped Nd

YLF laser at 657 nm: A frequency and intensity noise comparison with an extended cavity diode laser

M. Nunez Portela, N. U. Wetter, J. J. Zondy, F. C. Cruz

Research output: Contribution to journalArticle

Abstract

We report on a continuous wave, diode-pumped, intracavity frequency-doubled Nd:YLF (yttrium lithium fluoride) single-frequency ring laser designed for high-resolution spectroscopy of the calcium intercombination transition at 657 nm. We measured its frequency modulation (FM) and amplitude modulation (AM) noise and compared it with an extended cavity diode laser (ECDL). The Nd:YLF laser has much lower FM noise, extending to 50 kHz in comparison with 5 MHz for the ECDL, and slightly higher AM noise, transferred from the pump diode laser. This characterization is important for the design of servo-systems for frequency or intensity stabilization, and also for quantum optics experiments. A Nd:YLF laser at 657 nm can become an attractive high-power 'local oscillator' for a calcium optical clock, with a fundamental 'telecom wavelength' that can be directly used for remote transfer in optical fibers.

Original languageEnglish
Article number025801
JournalLaser Physics
Volume23
Issue number2
DOIs
Publication statusPublished - Feb 2013
Externally publishedYes

Fingerprint

YLF lasers
noise intensity
Semiconductor lasers
Diodes
Amplitude modulation
semiconductor lasers
diodes
Frequency modulation
frequency modulation
cavities
calcium
Calcium
Quantum optics
lithium fluorides
Ring lasers
quantum optics
Servomechanisms
ring lasers
Yttrium
yttrium

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Industrial and Manufacturing Engineering

Cite this

A single-frequency, diode-pumped Nd : YLF laser at 657 nm: A frequency and intensity noise comparison with an extended cavity diode laser. / Nunez Portela, M.; Wetter, N. U.; Zondy, J. J.; Cruz, F. C.

In: Laser Physics, Vol. 23, No. 2, 025801, 02.2013.

Research output: Contribution to journalArticle

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