搜索结果: 1-6 共查到“光学仪器及技术 Distributed”相关记录6条 . 查询时间(0.156 秒)
Long-Range Distributed Strain and Temperature Sensing with 40-cm Spatial Resolution Based on DPP-BOTDA Employing Optical Pre-Amplification and Simplex Coding
Fiber optics sensors Stimulated scattering
2015/5/25
Sub-meter resolution sensing has been achieved employing linear pre-amplification with Simplex-coded pulses employing DPP-BOTDA. Results demonstrate a spatial resolution of ~40 cm over 56km sensing fi...
Distributed Birefringence Measurement of Polarization Maintaining Fiber Using Transient Brillouin Grating
Fibers polarization maintaining Scattering stimulated Brillouin
2015/6/10
We propose a true distributed birefringence measurement of polarization-maintaining fiber based on transient Brillouin grating. A birefringence variation of 2.5×10 -6 along 8 m Bow-tie fiber is measur...
Bandwidth Enhancement of Distributed Reflector Lasers at Low Bias Current by Optical Injection Locking
Lasers distributed-feedback Lasers injection-locked Quantum-well wire and -dot devices
2015/6/4
By optical-injection-locking, the bandwidth enhancement of Distributed-Reflector lasers with quantum-wire-like active regions was demonstrated. The bandwidth was increased to >15-GHz at a 5-mA bias, w...
10 cm spatial resolution and 20 km range full polarimetric reflectometry for distributed DGD measurement of high PMD fibres
polarimetric reflectometry distributed DGD measurement PMD fibres
2015/7/15
Full polarimetric reflectometry is realized with a spatial resolution of 10 cm over 20 km based on phase-noise compensated optical frequency domain reflectometry. Distributed DGD measurement of high P...
Optical Pulse Coding Applied to Distributed Temperature Sensor Using Coherent Detection of Spontaneous Brillouin Frequency Shift
Optical Pulse Coding Applied Distributed Temperature Sensor Spontaneous Brillouin Frequency Shift
2015/8/3
A 53-km Simplex-coded distributed temperature sensor based on coherent detection of Brillouin frequency shift is demonstrated with 1.1 K and 35 m resolutions, using only 10 mW input peak power.
Characterizing Discrete and Distributed Scattering of Higher-Order- Modes in Large-Mode-Area Fibres
Characterizing Discrete Distributed Scattering Higher-Order- Modes Large-Mode-Area Fibres
2015/7/30
We characterize higher-order-mode content in large-mode-area fibres using spatially and spectrally resolved mode imaging. The technique is capable of distinguishing between discrete and distributed sc...
