Single-frequency pulse amplification in a higher-order mode fiber amplifier with fundamental-mode output

CLEO: 2013 ◽  
2013 ◽  
Author(s):  
J.W. Nicholson ◽  
J.M. Fini ◽  
X. Liu ◽  
A.M. DeSantolo ◽  
P.S. Westbrook ◽  
...  
Keyword(s):  
Fundamental Mode ◽  
Fiber Amplifier ◽  
Higher Order ◽  
Single Frequency ◽  
Order Mode ◽  
Pulse Amplification ◽  
Higher Order Mode ◽  
Frequency Pulse

High Energy Pulse Amplification in a Higher-Order Mode Fiber Amplifier with Axicon for Output Mode Conversion

CLEO: 2015 ◽  
2015 ◽  
Author(s):  
J.W. Nicholson ◽  
J.M. Fini ◽  
A. DeSantolo ◽  
P.S. Westbrook ◽  
R.S. Windeler ◽  
...  
Keyword(s):  
Mode Conversion ◽  
Fiber Amplifier ◽  
High Energy ◽  
Higher Order ◽  
Order Mode ◽  
Pulse Amplification ◽  
Energy Pulse ◽  
Higher Order Mode

Pumping of 7-Core erbium-doped double-clad fiber amplifier based on higher-order mode coupling

2015 ◽  
Author(s):  
Ryoichiro Nakamura ◽  
Tatsuya Koike ◽  
Moriya Nakamura ◽  
Werner Klaus ◽  
Yoshinari Awaji ◽  
...  
Keyword(s):  
Mode Coupling ◽  
Fiber Amplifier ◽  
Higher Order ◽  
Order Mode ◽  
Erbium Doped ◽  
Higher Order Mode

scholarly journals Modulated Differential Wavefront Sensing: Alignment Scheme for Beams with Large Higher Order Mode Content

Galaxies ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 81
Author(s):  
A. Bisht ◽  
M. Prijatelj ◽  
J. Leong ◽  
E. Schreiber ◽  
C. Affeldt ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Fundamental Mode ◽  
Higher Order ◽  
Wavefront Sensing ◽  
Gravitational Wave Detector ◽  
Order Mode ◽  
Wave Detector ◽  
Mode Content ◽  
Control Scheme ◽  
Higher Order Mode

Modulated differential wavefront sensing (MDWS) is an alignment control scheme in the regime of beams with strong higher order transversal modes (HOMs). It is based on the differential wavefront sensing (DWS) technique. MDWS represents a significant upgrade over conventional techniques used in the presence of high HOM content as it allows for higher control bandwidths while eliminating the need of auxiliary alignment modulations, that otherwise cause loss of applied squeezing. The output port of gravitational wave (GW) interferometers (IFO) is one such place where a lot of HOMs are present. These are filtered out by a cavity called the output mode cleaner (OMC), whose alignment gets challenging due to the presence of HOMs. In this paper, we present the first demonstration of the MDWS scheme for aligning the fundamental mode from the IFO to the OMC at the gravitational wave detector-GEO 600.

A higher-order mode fiber amplifier with an axicon for output mode conversion

2015 ◽  
Author(s):  
J. W. Nicholson ◽  
J. M. Fini ◽  
A. DeSantolo ◽  
P. S. Westbrook ◽  
R. S. Windeler ◽  
...  
Keyword(s):  
Mode Conversion ◽  
Fiber Amplifier ◽  
Higher Order ◽  
Order Mode ◽  
Higher Order Mode
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