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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...
Entrainment of Micromechanical Limit Cycle Oscillators in the Presence of Frequency Instability
Limit cycles micromechanical devices optical resonators oscillators thermomechanical processes
2015/8/27
The nonlinear dynamics of micromechanical oscil-lators are explored experimentally. Devices consist of singly and doubly supported Si beams, 200nm thick and 35 μm long.When illuminated within a laser ...
Significant progress in Yb-fiber laser based frequency combs over the last few years resulted in sub-Hz relative comb-tooth linewidths, average powers over 60W and GHz comb spacings enabling novel app...
Single-Frequency Hybrid Brillouin/Ytterbium Fiber Laser with 1-W Output Power
Lasers fiber Lasers ytterbium Nonlinear optics fibers
2015/6/8
A high-power hybrid Brillouin/ytterbium fiber laser is demonstrated with an output power of 1 W. The laser operates in the single-frequency regime with an optical signal-to-noise ratio greater than 55...
Novel Wide-range Frequency Offset Compensator Demonstrated with Real-time Digital Coherent Receiver
Wide-range Frequency Offset Compensator Demonstrated Real-time Digital Coherent Receiver
2015/7/30
A novel frequency offset estimator is proposed and implemented in a 1Gbit/s real-time coherent receiver to demonstrate all-digital frequency offset compensation up to ±0.4 symbol rate.
High Precision Frequency Standards Using Mode-Locked Fiber Lasers
EDFA Mode-locked fiber lasers Ultrashort pulse generation
2009/6/12
We describe an application of ultrashort fiber lasers to high precision frequency standards that enable us to measure unknown optical frequencies directly. Mode-locked lasers have a unique feature in ...
25 J Green-Beam Generation Using Large Aperture CsLiB6O10 Frequency Doubler
Nd:glass laser CsLiB6O10 (CLBO) crystal Second-harmonic generation (SHG)
2009/6/9
We report on the high energy and high efficiency doubling of Nd:glass laser with large aperture CsLiB6O10 (CLBO) crystal. A green output energy of 25 J at 532-nm has been obtained with 34 J of input N...
Gas Temperature Analysis of Laser Gain Medium in a Slab-type Radio-frequency-discharge-excited CO2 Laser
DFB laser Absorption spectroscopy CO2 absorption lines
2009/6/1
An optical method of temperature measurement to analyze CO2 laser active medium based on near-infrared absorption spectroscopy with a 1.6-µm distributed-feedback (DFB) semi- conductor laser is d...
Frequency-Shifted-Feedback Laser for Precise Remote 3D Measurement for Industry Applications
FSF laser Chirp frequency Optical comb
2009/6/1
A frequency-shifted feedback laser (FSFL), which generates a comb of chirped frequency components, has the ability for long distance and high accuracy optical ranging. In this report, the principles a...
Novel Optogalvanic Spectroscopy of Semiconductor Atoms with a Frequency-tripled ns Ti:sapphire Laser Injection-seeded by a cw Frequency-scanning Ti:sapphire Laser
Deep-ultraviolet Injection seeding Optogalvanic spectroscopy
2009/6/1
Novel optogalvanic spectroscopy of silicon atoms was conducted with the narrow-linewidth nanosecond pulsed deep-ultraviolet coherent light source which was comprised of the frequency-tripled nanosecon...
Optical frequency synthesizer based on selectively injection-locked DFB lasers from a femtosecond fiber laser comb
Optical frequency synthesizer DFB lasers fiber laser comb
2015/8/4
We present an optical frequency synthesizer based on two DFB lasers that can be selectively injection-locked to a desired single mode among the femtosecond fiber laser comb components.
Digital Clock Recovery Algorithm for Optical Coherent Receivers Operating Independent of Laser Frequency Offset
Digital Clock Recovery Algorithm Optical Coherent Receivers Laser Frequency Offset
2015/7/30
We propose a digital clock recovery algorithm and demonstrate its tolerance to at least 5GHz laser frequency mismatch in a 43Gb/s DP-RZ-QPSK receiver after 1200km transmission.
Single-frequency laser at 473 nm by use of twisted-mode technique
Single-frequency Twisted-mode Diode-end-pump
2011/12/6
We experimentally demonstrate an all solid-state laser producing single-frequency output at 473 nm. Spatial gain hole-burning in the gain material has been eliminated by use of twisted-mode cavity app...
Low threshold, actively Q-switched Nd3+:YVO4 self-Raman laser and frequency doubled 588 nm yellow laser
Raman laser Self-stimulation Actively Q-switched Yellow laser
2011/12/12
We reported an actively Q-switched, intracavity Nd3+:YVO4 self-Raman laser at 1176 nm with low threshold and high efficiency.From the extracavity frequency doubling by use of LBO nonlinear crystal, ov...
专著信息
书名
Study on Thermal Frequency Stabilization of Laser in Precision Measurement
语种
英文
撰写或编译
作者
李志刚,王宝光,杜振辉,艾长胜
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纳米技术与精密工程,（录用）
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