Brillouin gain suppression in photonic crystal fibers with random acoustically microstructured cores.
Finite-element calculations of the Brillouin gain spectrum in photonic crystal fibers (PCFs) with cores incorporating random arrangements of regions with discrete acoustic velocities are presented. The peak Brillouin gain coefficient for PCFs with cores with an acoustic domain size of approximately 0.26 microm(2) and an acoustic velocity variation of 3% was calculated to be 3.3 x 10(-12) m/W with a Brillouin gain spectrum FWHM of 280 MHz. This corresponds to a decrease in the peak Brillouin gain coefficient of 7.4 dB relative to a PCF with an acoustically homogeneous core.
Spring
Justin
J
Laser and Optics Research Center, Department of Physics, United States Air Force Academy, 2354 Fairchild Drive, Suite 2A31, USAF Academy, Colorado 80840, USA. justin.spring@usafa.edu
Ward
Benjamin
B