CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 9900 > Article
Presentation
3 August 2016 Preparation of 5.6dB vacuum squeezing on 795nm rubidium D1 line via an OPO (Conference Presentation)
Junmin Wang, Yashuai Han, Xin Wen, Baodong Yang, Yanhua Wang, Jun He
Author Affiliations +
Proceedings Volume 9900, Quantum Optics; 990016 (2016) https://doi.org/10.1117/12.2227484
Event: SPIE Photonics Europe, 2016, Brussels, Belgium
Abstract
We report on experimental preparation of the second-harmonic-wave laser and the single-mode squeezed vacuum state of 795 nm (rubidium atom D1 line) with periodically-poled KTiOPO4 (PPKTP) bulk crystals. By using a four-mirror bow-tie type ring doubling cavity we achieved ~111 mW of continuous-wave single-frequency ultra-violet (UV) laser radiation at 397.5 nm with ~191 mW of 795 nm fundamental-wave laser input. The corresponding doubling efficiency is 58.1%. To our knowledge, this is the highest doubling efficiency at 795 nm so far. Employing the 397.5 nm UV laser as a pump source of an optical parametric oscillator (OPO) with a PPKTP crystal, we achieved 5.6 dB of 795 nm single-mode squeezed vacuum output at analyzing frequency of 2 MHz. To our knowledge, this is the highest squeezing level of 795 nm single-mode squeezed vacuum so far. We analyzed the pump power dependence of the squeezing level, and concluded that UV laser induced losses of PPKTP crystal are main limiting factors for further improving the squeezing level. The generated 795 nm vacuum squeezing has huge potential applications in quantum memory and ultra-precision measurement with rubidium atoms.
Conference Presentation
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Junmin Wang, Yashuai Han, Xin Wen, Baodong Yang, Yanhua Wang, and Jun He "Preparation of 5.6dB vacuum squeezing on 795nm rubidium D1 line via an OPO (Conference Presentation)", Proc. SPIE 9900, Quantum Optics, 990016 (3 August 2016); https://doi.org/10.1117/12.2227484
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
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
 PRESENTATION
WATCH
PRESENTATION SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
KEYWORDS
Optical parametric oscillators
Rubidium
Ultraviolet radiation
Crystals
Continuous wave operation
Quantum memory
Current controlled current source
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top