Erbium-doped Circular Photonic Crystal Fiber Design for the Amplification of 20 OAM Modes

2021 ◽  
Author(s):  
Aditi Mehta ◽  
Mohd Rehan ◽  
Vipul Rastogi
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Crystal Fiber ◽  
Fiber Design ◽  
Erbium Doped

scholarly journals Efficient Photonic Crystal Fiber Design for Higher OAM Modes with Low Loss Towards Next Generation THz Communication

2021 ◽  
Author(s):  
Bibhatsu Kuiri ◽  
Bubai Dutta ◽  
Nilanjana Sarkar ◽  
Saikat Santra ◽  
Paulomi Mandal ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Confinement Loss ◽  
Solid Core ◽  
Low Loss ◽  
Crystal Fiber ◽  
Fiber Design ◽  
Effective Mode Area ◽  
Mode Purity ◽  
Mode Area

Abstract A newer and efficient solid core with air holes and ring based circular photonic crystal fiber (C-PCF) design is proposed, developed, and studied. The C-PCF structure with a ring core and three layers of air holes is developed to communicate terahertz frequency of the range of 1 THz to 3 THz. Finite element method (FEM) is used to optimize the position, shape and dimensions of air holes and refractive index (RI) of material for the proposed PCF design and check the efficiency to support different orbital angular momentum (OAM) modes for communication. Our novel designed C-PCF supports multiple stable modes with mode purity above 0.9. Confinement loss is in the range of 10-12 dB/cm, highest effective mode area in the order of 1 mm2 is achieved in the investigated study for 3 THz transmission. The study observes that the performance of PCF is strongly dependent on RI of core and cladding.

scholarly journals Liquid-Filled Highly Asymmetric Photonic Crystal Fiber Sagnac Interferometer Temperature Sensor

Photonics ◽  
2020 ◽  
Vol 7 (2) ◽  
pp. 33 ◽  
Author(s):  
Yashar E. Monfared ◽  
Amir Ahmadian ◽  
Vigneswaran Dhasarathan ◽  
Chunhao Liang
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Temperature Sensor ◽  
The Finite Element Method ◽  
Sagnac Interferometer ◽  
Linear Temperature ◽  
Modal Birefringence ◽  
Ambient Temperatures ◽  
Crystal Fiber ◽  
Fiber Design

In this paper, we theoretically designed and numerically studied a high-resolution and ultrasensitive photonic crystal fiber temperature sensor by selective filling of a liquid with high thermo-optic coefficient in one of the airholes of the fiber. The finite element method was utilized to study the propagation characteristics and the modal birefringence of the fiber under different ambient temperatures. A large base birefringence value of 7.7 × 10−4 as well as a large birefringence sensitivity of almost 29% to a 10 °C temperature variation was achieved for the optimized fiber design with liquid chloroform between 15 °C and 35 °C. We also studied the performance of the proposed optical fiber in a temperature sensing Sagnac interferometer. An average linear temperature sensitivity of 17.53 nm/°C with an average resolution of 5.7 × 10−4 °C was achieved over a temperature range of 20 °C (15 °C to 35 °C).

scholarly journals Stable and uniform dual-wavelength erbium-doped fiber laser based on fiber Bragg gratings and photonic crystal fiber

2005 ◽  
Vol 13 (1) ◽  
pp. 142 ◽  
Author(s):  
Xueming Liu ◽  
Xiufeng Yang ◽  
Fuyun Lu ◽  
Junhong Ng ◽  
Xiaoqun Zhou ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Fiber Laser ◽  
Photonic Crystal Fiber ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Dual Wavelength ◽  
Crystal Fiber ◽  
Erbium Doped
Sign in / Sign up

Export Citation Format

Share Document