Calibrated Fabry-Perot etalon as an absolute frequency reference for OFDM communications

The frequency locking of a large number of lasers in OFDM applications requires an equally large number of stable references at predictable frequencies. The authors present a technique to lock a Fabry-Perot etalon on an atomic reference to provide multiple and evenly spaced absolute frequency refere...

Full description

Saved in:
Bibliographic Details
Published in:IEEE photonics technology letters 1992-07, Vol.4 (7), p.801-804, Article 801
Main Authors: Boucher, R., Villeneuve, B., Breton, M., Tetu, M.
Format: Article
Language:English
Subjects:
Atomic beams
Channel spacing
Fabry-Perot
Feedback loop
Frequency
Laser applications
Laser stability
Mirrors
OFDM
Resonance
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The frequency locking of a large number of lasers in OFDM applications requires an equally large number of stable references at predictable frequencies. The authors present a technique to lock a Fabry-Perot etalon on an atomic reference to provide multiple and evenly spaced absolute frequency references. Absolute etalon spacing is calibrated by matching two atomic references with two corresponding etalon modes. To maintain long-term stability in channel spacing, the etalon is locked to an atomic resonance using an electrical feedback loop to control mirror separation. This technique can be used for close spacing or coherent applications where channel separation and reproducibility is critical between transmitter and receiver.< >
ISSN:1041-1135
1941-0174
DOI:10.1109/68.145277