View Full Document

Experimental Work With Photonic Band Gap Fiber - Building A Laser Electron Accelerator



View the full content.
View Full Document
View Full Document

3 views

Unformatted text preview:

SLAC PUB 12087 August 2006 Experimental Work With Photonic Band Gap Fiber Building A Laser Electron Accelerator Melissa Lincoln Rasmus Ischebeck Robert Noble Robert Siemann Advanced Accelerator Research Department Stanford Linear Accelerator Center 2575 Sand Hill Road Menlo Park CA 94025 USA Abstract In the laser acceleration project E 163 at the Stanford Linear Accelerator Center work is being done toward building a traveling wave accelerator that uses as its accelerating structure a length of photonic band gap fiber The small scale of the optical fiber allows radiation at optical wavelengths to be used to provide the necessary accelerating energy Optical wavelength driving energy in a small structure yields higher accelerating fields The existence of a speed oflight accelerating mode in a photonic band gap fiber has been calculated previously 1 This paper presents an overview of several of the experimental challenges posed in the development of the proposed photonic band gap fiber accelerator system Keywords Photonic band gap fiber PACS 41 75 Jv 42 79 Gn 42 81 i 41 75 Ht INTRODUCTION The construction of a fiber based accelerator requires thorough characterization of the candidate fiber structure It is crucial to the successful operation of the accelerator that the frequency of the driving laser light be selected so as to fall within a band gap of the fiber Thus the transmission spectrum of the fiber must be well known The fiber s band gap describes a set of electromagnetic modes that are disallowed from propagating transversely and thus may only travel longitudinally through the fiber Radiation within the band gap cannot be lost radially through the fiber then for the fiber acts as a radial reflector 2 A requirement for acceleration is that the chosen frequency can excite a mode with speed of light phase velocity In order to be able to excite an accelerating mode in the fiber it must also be well known how to properly couple light into the fiber structure to



Access the best Study Guides, Lecture Notes and Practice Exams

Loading Unlocking...
Login

Join to view Experimental Work With Photonic Band Gap Fiber - Building A Laser Electron Accelerator and access 3M+ class-specific study document.

or
We will never post anything without your permission.
Don't have an account?
Sign Up

Join to view Experimental Work With Photonic Band Gap Fiber - Building A Laser Electron Accelerator and access 3M+ class-specific study document.

or

By creating an account you agree to our Privacy Policy and Terms Of Use

Already a member?