Generation of multiple optical frequencies referenced to a frequency comb for precision free-space frequency transfer

Byung Jae Chun; Hyun Jay Kang; Young-Jin Kim; Seung-Woo Kim

doi:10.1117/12.2212815

15 March 2016 Generation of multiple optical frequencies referenced to a frequency comb for precision free-space frequency transfer

Byung Jae Chun, Hyun Jay Kang, Young-Jin Kim, Seung-Woo Kim

Author Affiliations +

Proceedings Volume 9739, Free-Space Laser Communication and Atmospheric Propagation XXVIII; 973915 (2016) https://doi.org/10.1117/12.2212815
Event: SPIE LASE, 2016, San Francisco, California, United States

Abstract

Generating multiple optical frequencies referenced to the frequency standard is an important task in optical clock dissemination and optical communication. An apparatus for frequency-comb-referenced generation of multiple optical frequencies is demonstrated for high-precision free-space transfer of multiple optical frequencies. The relative linewidth and frequency instability at each channel corresponds to sub-1 Hz and 1.06×10^-15at 10 s averaging time, respectively. During the free-space transfer, the refractive index change of transmission media caused by atmospheric turbulences induces phase and frequency noise on optical frequencies. These phase and frequency noise causes induced linewidth broadening and frequency shift in optical frequencies which can disturb the accurate frequency transfer. The proposed feedback loop with acousto-optic modulator can monitor and compensate phase/frequency noise on optical frequencies. As a result, a frequency-comb-referenced single optical mode is compensated with a high signal to noise ratio (SNR) of 80 dB. By sharing the same optical paths, this feedback loop is confirmed to be successfully transferred to the neighboring wavelength channels (a 100 GHz spaced channel). This result confirms our proposed system can transfer optical frequencies to the remote site in free-space without performance degradation.

Citation Download Citation

Byung Jae Chun, Hyun Jay Kang, Young-Jin Kim, and Seung-Woo Kim "Generation of multiple optical frequencies referenced to a frequency comb for precision free-space frequency transfer", Proc. SPIE 9739, Free-Space Laser Communication and Atmospheric Propagation XXVIII, 973915 (15 March 2016); https://doi.org/10.1117/12.2212815

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
7 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Free space optics

Atmospheric optics

Frequency combs

Bragg cells

Signal to noise ratio

Singular optics

Channel projecting optics

Show All Keywords

Keywords/Phrases

Search In:

Publication Years