RIE lag directional coupler based integrated InGaAsP/InP ring mode-locked laser

2011 ◽  
Author(s):  
John S. Parker ◽  
Pietro R.A. Binetti ◽  
Yung-Jr Hung ◽  
Erik J. Norberg ◽  
Larry A. Coldren
Keyword(s):  
Directional Coupler ◽  
Ring Mode ◽  
Mode Locked Laser

Subring-wavelength multidimensional multiplexing for quad-comb generation from an integrated dual-ring mode-locked laser

2021 ◽  
Author(s):  
Hao Sun ◽  
Haisu Lv ◽  
Jinxuan Wu ◽  
Pengcheng Hu ◽  
Haijin Fu ◽  
...  
Keyword(s):  
Ring Mode ◽  
Mode Locked Laser ◽  
Comb Generation ◽  
Dual Ring

scholarly journals Integrated Microwave Photonic Isolators: Theory, Experimental Realization and Application in a Unidirectional Ring Mode-Locked Laser Diode

Photonics ◽  
2015 ◽  
Vol 2 (3) ◽  
pp. 957-968 ◽  
Author(s):  
Martijn Heck ◽  
Sudharsanan Srinivasan ◽  
Michael Davenport ◽  
John Bowers
Keyword(s):  
Laser Diode ◽  
Experimental Realization ◽  
Microwave Photonic ◽  
Ring Mode ◽  
Mode Locked Laser

Analysis of the Phase-Locking Dynamics of a III-V-on-Silicon Ring Mode-Locked Laser

2020 ◽  
Author(s):  
Kasper Van Gasse ◽  
Bart Kuyken ◽  
Alexis Verschelde ◽  
Massimo Giudici ◽  
Mathias Marconi ◽  
...  
Keyword(s):  
Phase Locking ◽  
Ring Mode ◽  
Mode Locked Laser

Stability analysis of the fiber ring mode-locked laser with a SOA

2002 ◽  
Author(s):  
Can Peng ◽  
Minyu Yao ◽  
Qianfan Xu ◽  
Hongming Zhang
Keyword(s):  
Stability Analysis ◽  
Fiber Ring ◽  
Ring Mode ◽  
Mode Locked Laser

Monolithically Integrated Gain-Flattened Ring Mode-Locked Laser for Comb-Line Generation

2012 ◽  
Vol 24 (2) ◽  
pp. 131-133 ◽  
Author(s):  
John S. Parker ◽  
Ashish Bhardwaj ◽  
Pietro R. A. Binetti ◽  
Yung-Jr Hung ◽  
Larry A. Coldren
Keyword(s):  
Monolithically Integrated ◽  
Ring Mode ◽  
Mode Locked Laser ◽  
Line Generation

Integrated 30GHz passive ring mode-locked laser with gain flattening filter

2010 ◽  
Author(s):  
John S. Parker ◽  
Ashish Bhardwaj ◽  
Pietro R.A. Binetti ◽  
Yung-Jr Hung ◽  
Chin-Han Lin ◽  
...  
Keyword(s):  
Ring Mode ◽  
Gain Flattening ◽  
Flattening Filter ◽  
Mode Locked Laser ◽  
Gain Flattening Filter

Structured methods for improving flow measurement accuracy in pipelines

2020 ◽  
pp. 30-35
Author(s):  
Gurami N. Akhobadze
Keyword(s):  
Flow Measurement ◽  
Measurement Accuracy ◽  
Directional Coupler ◽  
Signal To Noise Ratio ◽  
Scattered Wave ◽  
Orthogonal Polarization ◽  
Flow Sensors ◽  
Information Signal ◽  
Mass Flows ◽  
Processing Device

In the age of digital transformation of production processes in industry and science the development and design of intelligent flow sensors for granular and liquid substances transferring through pipelines becomes more important. With this in view new approaches for improving the accuracy of microwave flowmeters are proposed. Taking into account the characteristics ofelectromagnetic waves propagating through a pipeline, a wave scattered by inhomogeneities of the controlled medium is analyzed. Features of the transformation of the polarized scattered wave limiting the geometric dimensions of the pipeline and optimizing the values of the useful scattered signal are revealed. Expediency of collection of the information signal with orthogonal polarization of the scattered wave and through a directional coupler is substantiated. The method of estimating the measurement accuracy with reference to the signal-to-noise ratio at the input of the processing device is given. The research results can be used in cryogenic machine engineering to measure volume and mass flows of liquid cryogenic products.

Next Generation Laser Voltage Probing

2008 ◽  
Author(s):  
Yin S Ng ◽  
William Lo ◽  
Kenneth Wilsher
Keyword(s):  
Phase Modulation ◽  
Phase Locked Loop ◽  
Next Generation ◽  
Solid Immersion Lens ◽  
User Friendliness ◽  
New Developments ◽  
Polarization Difference ◽  
Previous Generation ◽  
Mode Locked Laser ◽  
Optical Laser

Abstract We present an overview of Ruby, the latest generation of backside optical laser voltage probing (LVP) tools [1, 2]. Carrying over from the previous generation of IDS2700 systems, Ruby is capable of measuring waveforms up to 15GHz at low core voltages 0.500V and below. Several new optical capabilities are incorporated; these include a solid immersion lens (SIL) for improved imaging resolution [3] and a polarization difference probing (PDP) optical platform [4] for phase modulation detection. New developments involve Jitter Mitigation, a scheme that allows measurements of jittery signals from circuits that are internally driven by the IC’s onboard Phase Locked Loop (PLL). Additional timing features include a Hardware Phase-Locked Loop (HWPLL) scheme for improved locking of the LVP’s Mode-Locked Laser (MLL) to the tester clock as well as a clockless scheme to improve the LVP’s usefulness and user friendliness. This paper presents these new capabilities and compares these with those of the previous generation of LVP systems [5, 6].

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