NDLI: Experimental demonstration of a compact and high-performance laser-pumped rubidium gas cell atomic frequency standard

Content Provider	IEEE Xplore Digital Library
Author	Affolderbach, C. Droz, F. Mileti, G.
Copyright Year	1963
Abstract	The authors present a compact high-performance laser-pumped Rubidium atomic frequency standard exploiting the advantages of laser optical pumping for improved stability. The clock is based on an industrial Rb clock with the lamp assembly removed and optically pumped by light from a compact frequency-stabilized laser head. The modification of the buffer gas filling in the clock resonance cell reduces instabilities on medium-term timescales arising from the ac Stark effect and temperature variations. The frequency stability of the demonstrator clock was measured to be better than 4/spl times/10/sup -12//spl tau//sup -1/2/ up to 10/sup 4/ s, limited by the local oscillator (LO) quartz and RF loop electronics. Long-term drifts under atmosphere amount to 2-6/spl times/10/sup -13//day only, comparable to or lower than that for lamp-pumped clocks under similar conditions. Typical signal contrasts lie at around 20%, corresponding to a shot-noise limit for the short-term stability of 2/spl times/10/sup -13//spl tau//sup -1/2/. The results clearly demonstrate the feasibility of a laser-pumped Rb clock reaching <1/spl times/10/sup -12//spl tau//sup -1/2/ in a compact device (< 2 L, 2 kg, 20 W), given the optimization of the implemented techniques. Compact high-performance clocks of this kind are of high interest for space applications such as telecommunications, science missions, and future generations of satellite navigation systems [GPS, global orbiting navigation satellite system (GLONASS), European satellite navigation system (GALILEO)].
Sponsorship	IEEE Instrumentation and Measurement Society Bureau international des poids et mesures IEEE International Bureau of Weights and Measures (BIPM) URSI NBS Agency Ind. Sci. & Technol., Min. Int. Trade & Ind. Sci. Council Japan International Union of Pure and Applied Physics (IUPAP) NIST NRCC National Conference of Standards Laboratories (NCSL) Allen Osborne Associates Andeen-Hagerling, Inc. Ballantine Lab. Inc. Clarke-Hess Communications Research Corp. Fluke Corporation Guildline Instruments Hewlett-Packard Co. Julie Res. Lab. Inc. Keithley Instruments, Inc. Measurements International Ltd. Canada QuadTech Inc. Quantum Design Inc. Rotek Instrum. Corp. Tegam Inc. Tektronix Inc
Starting Page	429
Ending Page	435
Page Count	7
File Size	311662
File Format	PDF
ISSN	00189456
Volume Number	55
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-04-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Atom lasers Gas lasers Atomic clocks Pump lasers Laser stability Satellite navigation systems Optical pumping Optical buffering Frequency Lamps semiconductor lasers laser optical pumping laser stabilization microwave spectroscopy satellite navigation systems
Content Type	Text
Resource Type	Article
Subject	Instrumentation Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

A compact, high-performance laser-pumped Rubidium atomic frequency standard

A laser optically-pumped Rubidium vapour-cell frequency standard using a DFB laser diode

Preliminary Investigation of a New Optically Pumped Atomic Rubidium Standard

Realization of a pulsed optically pumped rubidium frequency standard

Optical Pumping Method to Reduce Light Shift in a Vapor Cell Atomic Frequency Standard

Diode-laser-pumped, gas-cell atomic clocks

Short and medium term frequency stability of a laser pumped rubidium gas-cell frequency standard for satellite navigation

A Highly Stabilized Semiconductor Laser and Its Application to Optically Pumped Rb Atomic Clock

Experiments on a semiconductor laser pumped rubidium atomic clock

Experimental demonstration of a compact and high-performance laser-pumped rubidium gas cell atomic frequency standard

Similar Documents

A compact, high-performance laser-pumped Rubidium atomic frequency standard

A laser optically-pumped Rubidium vapour-cell frequency standard using a DFB laser diode

Preliminary Investigation of a New Optically Pumped Atomic Rubidium Standard

Realization of a pulsed optically pumped rubidium frequency standard

Optical Pumping Method to Reduce Light Shift in a Vapor Cell Atomic Frequency Standard

Diode-laser-pumped, gas-cell atomic clocks

Short and medium term frequency stability of a laser pumped rubidium gas-cell frequency standard for satellite navigation

A Highly Stabilized Semiconductor Laser and Its Application to Optically Pumped Rb Atomic Clock

Experiments on a semiconductor laser pumped rubidium atomic clock

Experimental demonstration of a compact and high-performance laser-pumped rubidium gas cell atomic frequency standard