Volume: 7 Issue 1
12 Article(s)

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A Portable Analog Lock-In Amplifier for Accurate Phase Measurement and Application in High-Precision Optical Oxygen Concentration Detection
Xi CHEN, Jun CHANG, Fupeng WANG, Zongliang WANG, Wei WEI, Yuanyuan LIU, and Zengguang QIN
  • Publication Date: Mar. 15, 2017
  • Vol. 7 Issue 1 27 (2017)
Design of a Porous Cored Hexagonal Photonic Crystal Fiber Based Optical Sensor With High Relative Sensitivity for Lower Operating Wavelength
Shuvo SEN, Sawrab CHOWDHURY, Kawsar AHMED, and Sayed ASADUZZAMAN
In this article, highly sensitive and low confinement loss enriching micro structured photonic crystal fiber (PCF) has been suggested as an optical sensor. The proposed PCF is porous cored hexagonal (P-HPCF) where cladding contains five layers with circular air holes and core vicinity is formed by two layered elliptica
  • Publication Date: Mar. 15, 2017
  • Vol. 7 Issue 1 55 (2017)
A Novel Color Image Compression Algorithm Using the Human Visual Contrast Sensitivity Characteristics
Juncai YAO, and Guizhong LIU
In order to achieve higher image compression ratio and improve visual perception of the decompressed image, a novel color image compression scheme based on the contrast sensitivity characteristics of the human visual system (HVS) is proposed. In the proposed scheme, firstly the image is converted into the YCrCb color s
  • Publication Date: Mar. 15, 2017
  • Vol. 7 Issue 1 72 (2017)
Performance Analysis of 112 Gb/s×4-Channel WDM PDM-DQPSK Optical Label Switching System With Spectral Amplitude Code Labels
Isaac Adjaye ABOAGYE, Fushen CHEN, and Yongsheng CAO
  • Publication Date: Mar. 15, 2017
  • Vol. 7 Issue 1 88 (2017)