To achieve the high brightness’s required for many laser applications it is necessary to phase lock multiple element fiber optical arrays. The intensity and hence the powers available from single-mode optical fibers are limited by optical surface damage or nonlinear optical effects. These limitations can be overcome by coherent beam combining of the output power from multiple optical fibers. We present the only technique for phase locking fiber arrays that doesn’t require a reference beam. There have been a number of research efforts addressing the need for very high brightness fiber laser sources by electronic phase locking[1,2,3,4,5]. The previous electronic phase locking techniques all required external reference beams and, also required one photodetector for each array element, while our method requires only a single photodetector for the entire array.

© 2008 Optical Society of America

PDF Article
More Like This
First Experimental Demonstration of Fiber Amplifier Array Phase Locking without an External Reference Beam

T. M. Shay, Vincent Benham, J. T. Baker, Anthony D. Sanchez, Sgt. D. Pilkington, Lt. Douglas Nelson, and Lt. Chunte A. Lu
CWD1 Conference on Lasers and Electro-Optics (CLEO) 2007

Phasing Locking of High Power Fiber Amplifier Arrays

T. M. Shay, J. T. Baker, Anthony D. Sanchez, C. A. Robin, C. L. Vergien, Angel Flores, C. Zerinque, D. Gallant, Chunte A. Lu, Benjamin Pulford, Capt. T. J. Bronder, and Arthur Lucero
AMA1 Advanced Solid-State Photonics (ASSP) 2010


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access Optica Member Subscription