Abstract

Stable, narrow-linewidth optical sources are necessary in modern atomic physics. An appealing approach to achieving $\sim 10\mathrm{kHz}$ frequency stability is optical feedback. We have designed a compact external cavity diode laser with optical feedback to a filter cavity mounted on a single baseplate and enclosed inside a vacuum sealed box. The design was implemented for three wavelengths addressing the $422\mathrm{nm}$ cooling, $1091\mathrm{nm}$ repumping, and $674\mathrm{nm}$ clock transition lines of ${\mathrm{Sr}}^{+}$. We are able to cool a single, trapped strontium ion to $\sim 2\mathrm{mK}$ and observe motional sidebands of the $5S_{1∕2}\leftrightarrow 4D_{5∕2}$ transition.

© 2007 Optical Society of America

Modulation-free optical locking of an external-cavity diode laser to a filter cavity

Kazuhiro Hayasaka
Opt. Lett. 36(12) 2188-2190 (2011)

Compact, thermal-noise-limited optical cavity for diode laser stabilization at 1×10⁻¹⁵

A. D. Ludlow, X. Huang, M. Notcutt, T. Zanon-Willette, S. M. Foreman, M. M. Boyd, S. Blatt, and J. Ye
Opt. Lett. 32(6) 641-643 (2007)

Observation of the 5s²S_1/2−4d²D_5/2 transition in a single laser-cooled trapped Sr⁺ ion by using an all-solid-state system of lasers

G. P. Barwood, C. S. Edwards, P. Gill, H. A. Klein, and W. R. C. Rowley
Opt. Lett. 18(9) 732-734 (1993)

Sideband-resolved spectroscopy on the 4 ²S_1/2–3 ²D_5/2 transition in single calcium ions by use of fundamental waves of diode lasers

Kenji Toyoda, Hideyuki Naka, Hidenori Kitamura, Hideyuki Sawamura, and Shinji Urabe
Opt. Lett. 29(11) 1270-1272 (2004)

Low-noise, tunable diode laser for ultra-high-resolution spectroscopy

K. Döringshoff, I. Ernsting, R.-H. Rinkleff, S. Schiller, and A. Wicht
Opt. Lett. 32(19) 2876-2878 (2007)