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Nanocavity and atomically thin materials advance tech for chip-scale light sources（图）
Nanocavity atomically thin materials advance tech chip-scale light sources
2017/2/16
When an individual uses Facebook or searches Google, the information processing happens in a large data center. Short distance optical interconnects can improve the performance of these data centers. ...
Single photon sources with single semiconductor quantum dots
single-photon source quantum dot (QD) quantum optics photon correlation
2016/1/23
In this contribution, we briefly recall the basic concepts of quantum optics and properties of semicon-ductor quantum dot (QD) which are necessary to the understanding of the physics of single-photon ...
Researchers transform slow emitters into fast light sources
Researchers transform slow emitters fast light sources
2015/11/12
Researchers from Brown University, in collaboration with colleagues from Harvard, have developed a new way to control light from phosphorescent emitters at very high speeds. The technique provides a n...
A 33mW 100Gbps CMOS Silicon Photonic WDM Transmitter Using Off-Chip Laser Sources
A 33 mW 100 Gbps CMOS Silicon Photonic WDM Transmitter On-Chip Laser Sources
2014/11/6
We report an ultra-low power 100Gbps silicon photonic WDM transmitter tunable with off-chip laser sources. The hybrid CMOS transmitter consists of eight 12.6Gbps WDM channels and consumes a total on-c...
Integrated Silicon Photonic Laser Sources for Telecom and Datacom
Integrated Silicon Photonic Laser Sources Telecom Datacom
2014/11/6
We demonstrate record performance heterogeneously integrated telecom wavelength and datacom wavelength lasers, processed simultaneously on the same wafer. Tunable lasers for telecom applications and u...
Nanotechnology aids in cooling electrons without external sources
external sources cooling electrons Nanotechnology aids
2014/9/12
A team of researchers has discovered a way to cool electrons to -228 °C without external means and at room temperature, an advancement that could enable electronic devices to function with very little...
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
2015/8/7
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 ...
Time-Interleaved Phase Remodulation to Enable Broadcast Transmission in Bidirectional WDM-PONs without Additional Light Sources
Time-Interleaved Phase Remodulation Enable Broadcast Transmission Bidirectional WDM-PONs without Additional Light Sources
2015/5/21
Time-interleaved phase remodulation is proposed to realize broadcast transmission for WDM-PONs. Simultaneous transmission of 5-Gb/s bidirectional unicast data and broadcast data is demonstrated at the...
Engineering Fiber-Nonlinearity Based Entangled Photon Sources for Quantum Key Distribution Applications
Engineering Fiber-Nonlinearity Based Entangled Photon Sources Quantum Key Distribution Applications
2015/5/20
We model fiber parametric entangled photon sources for use in quantum key distribution applications. Effects of Raman scattered photons are evaluated and are found to be manageable when appropriately ...
50 fJ-per-bit, High Speed, Directly Modulated Light Sources for On-chip Optical Data Communications
50 fJ-per-bit High Speed Directly Modulated Light Sources On-chip Optical Data Communications
2015/5/20
By employing optical injection-locking the direct modulation bandwidth of a 10μm diameter disc laser is increased to 15GHz. In addition, modulation at 20Gb/s is demonstrated with only 1mW DC bias & 19...
24 channels colorless WDM-PON with L-band 10 Gb/s downstream and C-band 2.5 Gb/s upstream using multiple- wavelengths seeding sources based on mode-locked lasers
Fiber optics optical communications Optoelectronics Networks
2015/6/8
A novel WDM-PON delivering 10-Gb/s downstream based on L-band loss-less reflective-amplified-modulator and 2.5-Gb/s upstream based on C-band injection-locked Fabry-Perot laser is experimentally demons...
2.5 Gbps Operation of RSOA for Low Cost WDM-PON Sources
Operation RSOA Cost WDM-PON Sources
2015/7/17
We present design issue of RSOA and report fabricated-device/packaged-module characteristics for WDM-PON. Optical gain, 3dB ASE bandwidth and polarization dependent gain were about 25 dB, 35 nm and le...
Spectrum Sliced Sources AMOOFDM Modulated for WDM&TDM PON
Spectrum Sliced Sources AMOOFDM Modulated WDM&TDM PON
2015/7/16
We experimentally demonstrate the use of AMOOFDM format as a cost effective solution for colorless source WDM-PONs based on spectrally sliced ASE source (SLED, RSOA and pre-selected RSOA).
Electrically Driven Single Photon Sources - Status and Challenges
Electrically Driven Single Photon Sources
2015/7/15
Recent progress in the field of electrically pumped single photon sources based on quantum dot-microcavity systems will be reviewed. We demonstrate efficient single photon emission at rates exceeding ...
Efficient measurement of large light sources for optical simulation and design（图）
Efficient measurement large light sources optical simulation optical design
2009/7/20
Like any task in optical design, large lighting projects such as architectural, automotive, street, security, or entertainment systems still need to be characterized for output color and luminance. Ho...