搜索结果: 1-15 共查到“光学工程 Fiber-Optic”相关记录23条 . 查询时间(0.07 秒)
Modeling Coherent Backscattering Errors in Fiber Optic Gyroscopes for Sources of Arbitrary Line Width
Backscattering drift backscattering noise fi ber optic gyroscope laser phase noise
2013/8/7
We present a new model of the noise and drift induced by coherent backscattering in a fiber optic gyroscope (FOG) interrogated with a light source of arbitrary temporal coherence. This study is ...
Experimental Observation of Low Noise and Low Drift in a Laser-Driven Fiber Optic Gyroscope
Backscattering drift backscattering noise fi ber optic gyroscope laser phase noise
2013/8/7
We demonstrate that by driving a fiber optic gyroscope (FOG) with a laser of relatively broad linewidth( ), both the noise and the bias drift are reduced to very low levels (0.058 and 1.1 , resp...
Resonant Fiber Optic Gyroscope Using an Air-Core Fiber
Gyroscopes photonic-bandgap fi bers resonant fi ber-optic gyroscope RFOG
2012/8/7
Air-core photonic bandgap fibers (PBFs) have great potential for the resonant fiber-optic gyroscope (RFOG), because they reduce both the Kerr-induced drift and the thermal polarization ins...
Advanced Fiber Optic Parametric Synthesis and Characterization
Fiber optics amplifier oscillators Nonlinear optics parametric processes
2011/5/26
Fiber parametric mixer devices posses the highest figure of merit in any technology,allowing for superior performance with respect to gain, noise and conversion efficiency in both incoherent and coher...
Evaluation of a Fiber-Optic Parametric Amplifier with Optical Feedback in Multi-Channel Dynamic Networks
Networks Parametric oscillators amplifiers
2011/5/26
We investigate the feasibility of optical gain-clamping a fiber-optic parametric-amplifier to prevent cross gain saturation in multi-channel systems. We measure only moderate improvement but identify ...
Evaluation of a Fiber-Optic Parametric Amplifier with Optical Feedback in Multi-Channel Dynamic Networks
Networks Parametric oscillators amplifiers
2011/5/26
We investigate the feasibility of optical gain-clamping a fiber-optic parametric-amplifier to prevent cross gain saturation in multi-channel systems. We measure only moderate improvement but identify ...
Using Dispersion in a Fiber-Optic Loop to Perform Time Domain Analogue RF Signal Auto-Correlation
Using Dispersion Fiber-Optic Perform Time Domain Analogue RF Signal Auto-Correlation
2011/5/22
We present an RF-photonic time-domain auto-correlator using a dispersion-induced stepped-time-delay of the modulation sidebands produced by a fiber optic recirculation loop circuit. This allows spectr...
Volterra Filtering for Nonlinearity Impairment Mitigation in DP-16QAM and DP-QPSK Fiber Optic Communication Systems
P-QPSK Fiber Optic Communication Systems Nonlinearity Impairment Volterra Filtering
2011/5/15
A reduced nonlinear Volterra filter is applied to 14 Gbaud DP-16QAM and 28 Gbaud DP-QPSK systems for nonlinearity mitigation. An increased reach of 500 km and 1200 km,respectively, is achieved compare...
Fiber optic pressure sensing with conforming elastomers.
Fiber optic pressure sensing conforming elastomers.
2010/12/27
A novel pressure sensing scheme based on the effect of a conforming elastomer material on the transmis-sion spectrum of tilted fiber Bragg gratings is presented. Lateral pressure on the elastomer incr...
Using a Microcontroller to Optimize the Bias Voltage of Balanced Photodiodes to Minimize Even-Order Distortion in Analog Fiber-Optic Links
Radio frequency photonics Photodiodes Fiber optic links subsystems
2010/6/4
Use of a microcontroller-based bias board for balanced photodiodes improves even-order distortion cancellation due to voltage dependent responsivity nonlinearities.The bias board improves the second o...
What we believe to be a novel fiber-optical inclinometer based on a dual-path core-to-cladding mode coupling mechanism is demonstrated. Both the amplitude and tilt direction of bends about a 2-mm-long...
Joint Equalization and Timing Recovery for Coherent Fiber Optic Receivers
Joint Equalization Timing Recovery Coherent Fiber Optic Receivers
2009/7/30
A new low-complexity, dispersion-robust digital timing recovery for coherent systems is presented as a joint implementation with the FIR-equalizer, demonstrated for 112Gb/s RZ-CP-QPSK.
The Fiber Optic Subsystem Components on Express Logistics Carrier for International Space Station
Fiber Optic Subsystem Components Express Logistics Carrier International Space Station
2009/7/20
The Photonics Group at the United States NASA Goddard Space Flight Center has been supporting the design,development, manufacturing and integration of the optical fiber subsystem on the Express Logist...
Realization of Optical OFDM Using Time Lenses and Its Comparison with Conventional OFDM for Fiber-optic Systems
Realization Conventional OFDM Fiber-optic Systems
2009/7/17
It is proposed to use Fourier transforms in optical domain using time lenses both at transmitter and at receiver to realize optical OFDM. Results show that coherent OFDM systems have higher nonlinear ...
Use of the Zero Forcing Method for Compensation of Polarization Dependent Loss in Coherent Fiber-Optic Links
Zero Forcing Method Compensation Polarization Dependent Coherent Fiber-Optic Links
2009/7/17
We show that a zero forcing receiver can be used to achieve nearly optimal performance in coherent polarization multiplexed systems. The advantage is in the receiver simplicity relative to the joint d...