研究目的
Investigating the design, fabrication, and characterization of a panda type few-mode fiber capable of both mode profile and polarization maintenance.
研究成果
The panda-FMF demonstrates effective maintenance of both mode profile and polarization for high-order radially asymmetric modes under severe twist rates, with theoretical and experimental verification of effective refractive index differences and polarization extinction ratios.
研究不足
The study focuses on a specific design of panda-FMF and its performance under controlled conditions. The impact of manufacturing variances and environmental factors on performance is not extensively explored.
1：Experimental Design and Method Selection:
The study involves the design and fabrication of a panda-FMF with two applied stress rods into the conventional FMF to achieve mode profile and polarization maintenance. Theoretical models and finite element mode solvers are employed for design optimization.
2：Sample Selection and Data Sources:
The fabricated panda-FMF is characterized using optical time domain reflectometer (OTDR) for attenuation measurement and mode selective conversion techniques for mode profile and polarization maintenance verification.
3：List of Experimental Equipment and Materials:
Equipment includes DFB laser diode, photonic lantern (PL), phase plate (PP), power meter, polarization controller, fiber rotators (FRs), infrared CCD, and integrating sphere. Materials include the panda-FMF and conventional FMF for comparison.
4：Experimental Procedures and Operational Workflow:
The panda-FMF is subjected to mode selective excitation using PL and PP, followed by power measurement and mode profile capture under various twist rates to evaluate maintenance performance.
5：Data Analysis Methods:
The effective refractive index differences and polarization extinction ratios (PERs) are calculated to assess mode profile and polarization maintenance. Correlation coefficients are used to evaluate mode profile distortion.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容-
Optical time domain reflectometer
AXS-100
EXFO
Used for measuring the attenuation of the designated modes arising in the fabricated panda-FMF.
-
Photonic lantern
3PL-0160153
Phoenix Photonics
Mode selective conversion device for generating LP01, LP11a, and LP11b modes.
-
PMF fusion splicer
FSM 100P+
Fujikura
Used for fusion splicing the panda-FMF to the pigtail of the PL or the output end of the PP.
-
Fiber rotators
HFR007
Thorlabs
Used for managing the fiber twist angle with precision.
-
Infrared CCD
SP620U-1550
OPHIR Photonics
Used for capturing the mode profile at the panda-FMF output.
-
DFB laser diode
OSICS-DFB
Yenista Optics
Used for generating optical signals at a specific wavelength for mode selective excitation.
-
Integrating sphere
1918-R with detector 819D-IG-2-CAL
New Port
Used for power measurement of the output optical power.
-
登录查看剩余5件设备及参数对照表
查看全部
