Multi-MW peak power single-transverse mode operation of a 100 micron core diameter, Yb-doped photonic crystal rod amplifier

2007 ◽  
Author(s):  
Fabio Di Teodoro ◽  
Christopher D. Brooks
Keyword(s):  
Photonic Crystal ◽  
Peak Power ◽  
Transverse Mode ◽  
Core Diameter ◽  
Mode Operation

A photonic crystal fiber for single-polarization single-mode operation

2011 ◽  
Author(s):  
Hongjun Zheng ◽  
Chongqing Wu ◽  
Zhi Wang ◽  
Shanliang Liu ◽  
Huishan Yu ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Single Mode ◽  
Single Mode Operation ◽  
Crystal Fiber ◽  
Mode Operation ◽  
Single Polarization

Influence of displacement and patterning of phase shifters for piston mode operation of temperature compensated surface acoustic wave resonators on SiO2/LiNbO3 structure

2021 ◽  
Author(s):  
Keyuan Gong ◽  
Zhaohui Wu ◽  
Yu-Po Wong ◽  
Yawei Li ◽  
Qi Liang ◽  
...  
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Transverse Mode ◽  
Phase Shifters ◽  
Design Parameters ◽  
Mode Operation ◽  
Mode Suppression ◽  
Acoustic Wave Resonators ◽  
Piston Mode

Abstract This paper discusses influence of displacement and patterning of phase shifters for piston mode operation of the temperature compensated (TC) surface acoustic wave (SAW) resonator on SiO2/LiNbO3 structure. As the phase shifters, Cu metals placed on the top surface of SiO2 are considered. First, the conventional Cu stripes are chosen, and their displacement are considered from IDT aperture edges. It is shown that achievable transverse mode suppression is almost identical when the stripe shape is adjusted for each case. Next, Cu dots are considered as patterned phase shifters. It is shown comparable transverse mode suppression is possible also for this case. However, relatively strong SAW lateral leakage occurs when they are placed above IDT fingers. These results indicate that location and pattern can be added as design parameters for the phase shifters on SiO2. It is favorable for further enhancement of total device performances.

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