Frequency tracking and locking of diode laser using transmission spectrum of a Faraday anomalous-dispersion optical filter

1993 ◽  
Author(s):  
Qingji Wang ◽  
Rong Chen ◽  
Yufeng Peng ◽  
Lemin Zheng
Keyword(s):  
Diode Laser ◽  
Transmission Spectrum ◽  
Optical Filter ◽  
Anomalous Dispersion ◽  
Frequency Tracking

Diode laser using narrow bandwidth interference filter at 852 nm and its application in Faraday anomalous dispersion optical filter

2016 ◽  
Vol 25 (8) ◽  
pp. 083201 ◽  
Author(s):  
Zhaojie Jiang ◽  
Qi Zhou ◽  
Zhiming Tao ◽  
Xiaogang Zhang ◽  
Shengnan Zhang ◽  
...  
Keyword(s):  
Diode Laser ◽  
Optical Filter ◽  
Interference Filter ◽  
Anomalous Dispersion ◽  
Narrow Bandwidth

A dual-wavelength bandpass Faraday anomalous dispersion optical filter operating on the D1 and D2 lines of rubidium

2021 ◽  
pp. 127855
Author(s):  
Yang Yan ◽  
Jinpeng Yuan ◽  
Lirong Wang ◽  
Liantuan Xiao ◽  
Suotang Jia
Keyword(s):  
Optical Filter ◽  
Anomalous Dispersion ◽  
Dual Wavelength

scholarly journals Hollow cathode lamp based Faraday anomalous dispersion optical filter

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Duo Pan ◽  
Xiaobo Xue ◽  
Haosen Shang ◽  
Bin Luo ◽  
Jingbiao Chen ◽  
...  
Keyword(s):  
Hollow Cathode ◽  
Optical Filter ◽  
Anomalous Dispersion ◽  
Hollow Cathode Lamp

Design and optimization of two dimensional photonic crystal based optical filter

2015 ◽  
Vol 24 (03) ◽  
pp. 1550027 ◽  
Author(s):  
G. Rajalakshmi ◽  
A. Sivanantha Raja ◽  
D. Shanmuga Sundar
Keyword(s):  
Refractive Index ◽  
Photonic Crystal ◽  
Transmission Spectrum ◽  
Filter Design ◽  
Photonic Band Gap ◽  
Fdtd Method ◽  
Optical Filter ◽  
Two Dimensional ◽  
Dimensional Photonic Crystal ◽  
Two Dimensional Photonic Crystal

In this paper, the channel drop filter based on two dimensional photonic crystal is proposed. The structure is made of silicon rods with the refractive index n1 = 3.4641 which are perforated in air with refractive index n2 = 1. The simulation results are obtained using 2D finite difference time domain (FDTD) method. The photonic band gap is calculated by plane wave expansion solver method. Resonant mode of the ring resonator and the filter transmission spectrum is calculated using 2D FDTD method. Full width half maximum (FWHM) bandwidth of the filter at the output transmission spectrum from 1.508 μm to 1.512 μm is 4 nm. The quality factor of the filter is 377.5 and the proposed filter design is around 21 × 15 μm which is suitable for photonic integrated circuits.

scholarly journals A Faraday Anomalous Dispersion Optical Filter Based on Rubidium Hollow-Cathode Lamp

2020 ◽  
Vol 10 (20) ◽  
pp. 7075
Author(s):  
Liang Shen ◽  
Rui Ma ◽  
Longfei Yin ◽  
Bin Luo ◽  
Duo Pan ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Hollow Cathode ◽  
Room Temperature ◽  
Saturated Vapor ◽  
Optical Filter ◽  
Optical Filters ◽  
Anomalous Dispersion ◽  
Narrow Linewidth ◽  
Hollow Cathode Lamp ◽  
Lower Temperature

Using a hollow-cathode lamp (HCL) to build a Faraday anomalous dispersion optical filter (FADOF) is a new method to realize narrow linewidth optical filters. In contrast to other atomic optical filters based on saturated vapors, which work at a relatively high temperature to maintain the atomic density, the HCL device using sputtered particles can work at a much lower temperature. In this work, a rubidium HCL-based FADOF (HCL-FADOF) working at 780 nm is established and carefully tested. With 20 mm cathode length, the transmittance can reach 29% under 18 mA discharge current and 260 G magnetic field at room temperature, which is equivalent to the performance of a saturated vapor-based FADOF (VC-FADOF) at more than 60 ∘C. This work provides a direct comparison of the performance of the HCL-FADOF and the VC-FADOF, which is of great benefit to further studies of atomic filters at normal temperature.

A potassium Faraday anomalous dispersion optical filter

1992 ◽  
Vol 94 (1-3) ◽  
pp. 30-32 ◽  
Author(s):  
B. Yin ◽  
T.M. Shay
Keyword(s):  
Optical Filter ◽  
Anomalous Dispersion

A study of the physical properties of Zeeman absorption faraday anomalous dispersion optical filter

1995 ◽  
Vol 4 (1) ◽  
pp. 33-38 ◽  
Author(s):  
Duan Ming-hao ◽  
Li Yi-min ◽  
Tang Jun-xiong ◽  
Wang Qing-ji
Keyword(s):  
Physical Properties ◽  
Optical Filter ◽  
Anomalous Dispersion
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