Optical frequency standard by using a 1560 nm diode laser locked to saturated absorption lines of rubidium vapor

Abstract

A robust, compact, highly accurate rubidium optical frequency standard module was developed to overcome the delicate performance of conventional frequency stabilized lasers. A frequency doubled $1560\text{\hspace{0.17em} nm}$ distributed feedback diode laser locked to a rubidium $D_2$ saturated absorption line without using an optical amplifier was demonstrated, and dithering-free optical output was obtained. In addition, the sensitivity of the developed optical frequency standard to magnetic fields was investigated. We confirmed that the influence of the magnetic fields on the optical frequency standard can be almost negligible when using appropriate magnetic-shield films. As a result, the magnetic-field-insensitive optical frequency standard, which can be embedded in optical systems, exhibiting uncertainty less than at least $100\text{\hspace{0.17em} kHz}$, was successfully realized for the first time to the best of our knowledge.

© 2007 Optical Society of America

Frequency-stabilized 1520-nm diode laser with rubidium 5S_1/2 → 7S_1/2 two-photon absorption

Hsiang-Chen Chui, Yi-Wei Liu, Jow-Tsong Shy, Sen-Yen Shaw, Rostislav V. Roussev, and Martin M. Fejer
Appl. Opt. 43(34) 6348-6351 (2004)

Quasi-phase-matched frequency doubling in a waveguide of a 1560-nm diode laser and locking to the rubidium D₂ absorption lines

Vered Mahal, Ady Arie, Mark A. Arbore, and Martin M. Fejer
Opt. Lett. 21(16) 1217-1219 (1996)

Frequency stability at the kilohertz level of a rubidium-locked diode laser at 192.114 THz

Ariel Bruner, Vered Mahal, Irena Kiryuschev, Ady Arie, Mark A. Arbore, and Martin M. Fejer
Appl. Opt. 37(27) 6410-6414 (1998)

Frequency stabilization of a diode laser at 1540 nm by locking to sub-Doppler lines of potassium at 770 nm

Ariel Bruner, Ady Arie, Mark A. Arbore, and Martin M. Fejer
Appl. Opt. 37(6) 1049-1052 (1998)

Frequency locking of tunable diode lasers to a rubidium-stabilized ring-cavity resonator

Ayan Banerjee, Dipankar Das, Umakant D. Rapol, and Vasant Natarajan
Appl. Opt. 43(12) 2528-2531 (2004)