946-nm Nd:YAG digital-locked laser at 1.1 × 10 ⁻¹⁶ in 1 s and transfer-locked to a cryogenic silicon cavity

authored by

Alexandre Didier, Stepan Ignatovich, Erik Benkler, Maxim Okhapkin, Tanja E. Mehlstäubler

Abstract

We present a Nd:YAG ultra-stable laser system operating at 946 nm and demonstrate a fractional frequency instability of 1.1 × 10 ⁻¹⁶ at 1 s by pre-stabilizing it to a 30-cm-long ULE cavity at room temperature. All key analog components have been replaced by FPGA-based digital electronics. To reach an instability below the 10 ⁻¹⁶ level, we transfer the stability of a 1542 nm laser stabilized to a cryogenic silicon cavity exhibiting a fractional frequency instability of 4 × 10−17 at 1 s to the laser at 946 nm.

External Organisation(s)

National Metrology Institute of Germany (PTB)
RAS - Institute of Laser Physics

Type

Article

Journal

Optics letters

Volume

44

Pages

1781-1784

No. of pages

4

ISSN

0146-9592

Publication date

01.04.2019

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

Electronic version(s)

https://doi.org/10.1364/OL.44.001781 (Access: Unknown)