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Binary Phase Micro-Grating and Polarization Beam Splitter for Free-Space Micro Optical Pickups
2011/11/24
A pop-up binary-phase micrograting and a pop-up micro polarization beamsplitter, for potential use in micro-optical pickups, have been realized on a single silicon chip using a two-layer polysilicon a...
We demonstrated a laser diode position sensor for a near-field height control system. The feedback signal of the laser diode sensor resulted from self-mixing interferometry was characterized and model...
Optical digital filters that employ optical delay lines are proposed. Properly locating the zeros in the transfer function is shown to enable interleaver pairs to be designed with the same amplitude r...
By using an optical nonreturn-to-zero (NRZ) format data-stream to injection-lock an synchronously modulated Fabry-Perot laser diode at below threshold condition (without DC driving current), an output...
High-speed all-optical data-format conversion and logic gate from a synchronously modulated Fabry朠閞ot laser diode (FPLD) below threshold condition is demonstrated by using external injection-induced n...
Differential cross-polarization modulation (DXPoM) wavelength conversion using a semiconductor optical amplifier has been proposed to outperform substantially traditional cross-polarization modulation...
A multiwavelength fiber ring laser that is based on an S-band erbium-doped fiber amplifier (EDFA) and a semiconductor optical amplifier (SOA) is developed. An optical switch is used to switch the mult...
Effects of filter bandwidth and driving voltage on optical duobinary transmission systems
2011/11/23
This work demonstrates how electrical driving voltage of a Mach–Zehnder modulator and the bandwidth of electrical low-pass filters (LPFs) affect optical duobinary signals. The fact that a 100% driving...
Hybrid optical access networks, integrating fiber-tothe-home (FTTH) and radio-over-fiber (RoF) systems that share a single distributed infrastructure, are promising for future multiservice access netw...
This investigation demonstrates the generation of OFDM-RoF signal using frequency doubling technique for the first time, to the author’s best knowledge. The 4-Gb/s OFDM signal using 16-QAM format modu...
Cost-Effective Multi-Services Hybrid Access Networks with no Optical Filter at Remote Nodes
2011/11/22
This letter experimentally demonstrates a multiservices hybrid access network integrated radio-over-fiber and fiber-to-the-home systems which share the same distributed architecture. A 1.25-Gb/s baseb...
HOPSMAN: An Experimental Testbed System for a 10-Gb/s Optical Packet-Switched WDM Metro Ring Network
2011/11/18
For future WDM MANs, optical packetswitching has been considered to be a promising paradigm that efficiently supports a wide range of Internet-based applications having time-varying and high bandwidth...
Generation of optical millimeter-wave (mm-wave) signal using a Mach–Zehnder modulator (MZM) based on double-sideband (DSB), single-sideband (SSB), and double-sideband with carrier suppression (DSBCS) ...
RADIO-OVER-FIBER (ROF) systems have attracted much interest for potential use in future broadband wireless communications. Essential to ROF systems is the ability to generate and transmit optical radi...
Following the accelerated development of wireless communications, efficient and costeffective methods of generating and transmitting microwave and millimeter-wave signals are increasingly important. T...