Angular Compensation For Multiline Dispersion In Raman Amplifiers

J A Goldstone; Bradley Bobbs; Michael M Johnson

doi:10.1117/12.943825

8 April 1988 Angular Compensation For Multiline Dispersion In Raman Amplifiers

J A Goldstone, Bradley Bobbs, Michael M Johnson

Proceedings Volume 0874, Nonlinear Optical Beam Manipulation, Beam Combining, and Atmospheric Propagation; (1988) https://doi.org/10.1117/12.943825
Event: 1988 Los Angeles Symposium: O-E/LASE '88, 1988, Los Angeles, CA, United States

Abstract

In a Raman amplifier pumped by a multiline laser, it is well-known that dispersion in the Raman medium may decouple the Raman gains of the lines from each other. The small-signal gain of each line is then reduced by the fraction of the total pump power in each line. If these gains are very different from each other, then the overall conversion efficiency to the Stokes-shifted output may be limited by the difficulty in optimizing the amplifier cell length for all lines simultaneously. We describe here how the gains may be completely coupled together to solve these problems by adjusting the relative angles between the input beams so as to compensate for medium dispersion, and thereby eliminate the four-wave mixing phase mismatch. The theoretical basis for the effect, different geometries for achieving coupling, and computer simulation results for sample cases are presented.

Citation Download Citation

J A Goldstone, Bradley Bobbs, and Michael M Johnson "Angular Compensation For Multiline Dispersion In Raman Amplifiers", Proc. SPIE 0874, Nonlinear Optical Beam Manipulation, Beam Combining, and Atmospheric Propagation, (8 April 1988); https://doi.org/10.1117/12.943825

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available