Direct Spectroscopy in Hollow Optical with Fiber-Based Optical Frequency Combs
Abstract
Toward the creation of robust, portable frequency references in the near IR, we have isolated a single tooth from a fiber laser-based optical frequency comb for nonlinear spectroscopy and thereby directly referenced the comb. An 89 MHz erbium fiber laser frequency comb is directly stabilized to the P(23) (1539.43 nm) overtone transition of 12C2H2 inside a hollow-core photonic crystal fiber. To do this, a single comb tooth is isolated and amplified from 20 nW to 40 mW with sufficient fidelity to perform saturated absorption spectroscopy. The fractional stability of the comb, ~ 7 nm away from the stabilized tooth, is shown to be 610-12 at 100 ms gate time, which is over an order of magnitude better than that of a comb referenced to a GPS-disciplined Rb oscillator.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 09, 2015
- Accession Number
- AD1013315
Entities
People
- Kristan L. Corwin
Organizations
- Kansas State University