Title :
High repetition rate figure eight laser with extracavity feedback
Author :
Dennis, M.L. ; Duling, I.N.
Author_Institution :
US Naval Res. Lab., Washington, DC, USA
Abstract :
The operation of an erbium figure eight all-fibre laser with a fundamental repetition rate of 28.5 MHz is reported. The feedback of light rejected by the nonlinear amplifying loop mirror back into the laser is found to stabilise mode locking, enhance startup, shorten the pulse length to 275 fs, and provide a simple means of multiplying the repetition rate.
Keywords :
erbium; feedback; fibre lasers; laser cavity resonators; laser mode locking; 275 fs; 28.5 MHz; Er doped optical fibre; all-fibre laser; extracavity feedback; feedback; figure eight laser; high repetition rate; mode locking stabilisation; nonlinear amplifying loop mirror;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19921212
