Ultrasensitive High Resolution Laser Spectroscopy and Its Application to Optical Frequency Standards
Abstract
Advanced laser stabilization techniques now permit one to lock laser frequencies onto line centers of natural atomic/molecular resonances with unprecedented precision and accuracy, leading to improved visible optical frequency standards. A novel approach of cavity-enhanced frequency modulation spectroscopy is demonstrated to enjoy a record high sensitivity (6 x 10(-12) integrated absorption), working with a rich spectrum of weak molecular overtone transitions. The resultant high signal-to-noise ratio allows a Nd:YAG laser to be stabilized on the overtone transition at the level of 1 x 10(-14) in 800 seconds. For the work of coherent optical frequency connection, we present our recent development of an optical frequency comb generator with a 3-terahertz span.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1996
- Accession Number
- ADA505521
Entities
People
- John L. Hall
- Jun Ye
- Long-sheng Ma
Organizations
- University of Colorado Boulder