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New Design Results in Compact,Highly Efficient Frequency Comb
New Design Results Compact Highly Efficient Frequency Comb
2017/3/30
Northwestern Engineering researchers have designed a quantum cascade laser (QCL) frequency comb that is dramatically more efficient than previous iterations. Led by Manijeh Razeghi, researchers i...
Making Hydrogen Fuel from Water and Visible Light Highly Efficient（图）
Making Hydrogen Fuel Water Visible Light Highly Efficient
2015/9/9
Mimicking photosynthesis is not easy. The bottleneck of artificial photosynthesis is visible light, because converting it into other forms of energy is not efficient. Researchers at Michigan Technolog...
Phase Sensitive Degenerate Parametric Amplification Using Highly Efficient PPLN Ridge Waveguides
Nonlinear optics parametric processes Lithium niobate
2015/5/22
We constructed the first CW pumped degenerate parametric amplifier based on PPLN waveguides. We successfully demonstrated an in-phase gain of +11 dB and the phase sensitive amplification of a modulate...
Highly efficient and widely wavelength-tunable anti-Stokes signal conversion in the fundamental mode of photonic crystal fibe
Highly efficient wavelength-tunable anti-Stokes signal conversion undamental photonic crystal fibe
2015/5/20
Anti-Stokes signals from 645 to 543nm are generated in the fundamental mode. The power ratio of signal at 543 nm to residual pump at 840 nm is 22.6:1, the conversion efficiency P as /P p0 being above ...
Highly efficient electrospray process for carbon nanotube- based laser pulse formers
Nanomaterials Nonlinear optical devices Mode-locked laser
2015/6/9
We demonstrate laser pulsation of CNTs deposited by electrospray process that ensures target-localized and homogeneous deposition of CNTs with dramatically improved deposition efficiency (>95%). Resul...
High-speed Optical/electrical Devices and Their Integration for Highly-efficient 100GbE
Integrated optics devices Integrated optoelectronic circuits
2015/6/9
Recent challenges facing research and development on high-speed optical and electrical devices, and their integration for 100GbE are explained. The prospects regarding low-power-consumption technology...
Compact and Highly Efficient Intracavity SHG Green Light Source with Wide Operation Temperature Range Using Periodically Poled Mg:LiNbO3
Solid laser Intracavity LiNbO3
2009/6/1
A compact, high power SHG green light source with wide operation temperature range over 30 degrees Celsius has been developed by using a wavelength-locked laser diode and a 0.5mm-long periodically pol...