Adaptive On-Line Frequency Stabilization System for Laser Diodes Based on Genetic Algorithm(Lasers, Quantum Electronics)
スポンサーリンク
概要
- 論文の詳細を見る
We propose a frequency stabilization system for laser diodes (LDs), in which the electrical feedback loop response can be determined using an on-line genetic algorithm (GA) so as to attain lower LD frequency noise power within the specific Fourier frequency range of interest. At the initial stage of the stabilization, the feedback loop response has been controlled through GA, manipulating the proportional gain, integration time, and derivative time of conventional analog PID controller. Individuals having 12-bit chromosomes encoded by combinations of PID parameters have converged evolutionarily toward an optimal solution providing a suitable feedback loop response. A fitness function has been calculated for each individual in real time based on the power spectral density (PSD) of the frequency noise. The performance of this system has been tested by stabilizing a 50 mW visible LD. Long-term (τ > 0.01 s) frequency stability and its repeatability have been improved.
- 社団法人電子情報通信学会の論文
- 2003-10-01
著者
-
Kawamoto Takahiro
Department of Cardiology, Kawasaki Medical School Hospital
-
Kawamoto Takahiro
Department Of Electronics Doshisha University
-
HISATAKE Shintaro
Department of Electronics, Doshisha University
-
HAMAGUCHI Naoto
Department of Electronics, Doshisha University
-
SASAKI Wakao
Department of Electronics, Doshisha University
-
Hisatake Shintaro
Department Of Electronics Doshisha University:(present Address) Division Of Advanced Electronics And
-
Sasaki W
Department Of Electronics Doshisha University
-
Kawamoto Takahiro
Department Of Cardiology Kawasaki Medical School
-
Hamaguchi Naoto
Department Of Electronics Doshisha University
関連論文
- PE-202 The Relationship between Coronary Plaque Characteristics and Serum Lipid Profile(Atherosclerosis, clinical-05, The 71st Annual Scientific Meeting of the Japanese Circulation Society)
- Sinus of Valsalva dilates disproportionately in aortic root aneurysm with moderate to severe aortic regurgitation : quantitative assessment by transesophageal echocardiography
- FRS-108 Dynamic Change in 3-Dimensional Strain during Acute Ischemia by Newly-Developed 3-Dimensional Myocardial Tracking System(FRS22,New Echocardiographic Technologies (I),Featured Research Session (English),The 73rd Annual Scientific Meeting of The Jap
- Dynamic Change in the Mitral Valve Tenting as a Predictor of the Long-Term Prognosis in Patients With Decompensated Heart Failure
- Portopulmonary Hypertension Associated with Congenital Absence of the Portal Vein Treated with Bosentan
- 2 Tenting Volume Measured by 3D Echocardiography Predicts the Postoperative Outcome After Valvuloplasty in patients with Functional Mitral Regurgitation(Symposium 9 (SY-09) (M) New Insight for Treatment of Ischemic Mitral Regurgitation,Special Program,The
- Local Release of Catecholamines From the Hearts of Patients With Tako-Tsubo-Like Left Ventricular Dysfunction
- Noninvasive Measurements of the Mitral Annulus Geometry by Newly-developed Quantitation Software With Real-time Three-dimensional Echocardiography : A Validation Study
- PJ-748 Relationship between High Sensitivity C-Reactive Protein and In-stent Restenosis after Sirolimus-eluting Stent Implantation(Coronary revascularization, PCI-21, The 71st Annual Scientific Meeting of the Japanese Circulation Society)
- OJ-243 Progression of Ischemic Cardiomyopathy is Predictable by Left Ventricular Dilation and iNOS Expression during Initial Stage of Repetitive Ischemia/reperfusion Injury(Chronic coronary heart disease/Remodeling-1, The 71st Annual Scientific Meeting of
- OE-120 Dynamics of the Mitral Annular Geometry during Cardiac Cycle : New Insights from Real-time Three-Dimensional Echocardiography with a Novel Software System(Echo/Doppler-02, The 71st Annual Scientific Meeting of the Japanese Circulation Society)
- Dynamics of Mitral Complex Geometry and Functional Mitral Regurgitation During Heart Failure Treatment : Real-time Three-dimensional Echocardiographic Study
- PJ-385 Geometric Changes of Tricuspid Leaflets and Annulus in Atrial Septal Defect : Quantitation by Novel Software System With Real-time 3D Echocardiography(Echo/Doppler-11 (I) PJ65,Poster Session (Japanese),The 70th Anniversary Annual Scientific Meeting
- OJ-271 Dynamics of Mitral Complex Geometry and Functional Mitral Regurgitation during Heart Failure Treatment : Real-time Three-dimensional Echocardiographic Study(Echo/Doppler-5 (I) OJ46,Oral Presentation (Japanese),The 70th Anniversary Annual Scientific
- OE-306 Quantitation of Tricuspid Valve Leaflets and Annular Geometric Changes in Chronic Pulmonary Hypertension by Transthoracic Real-Time Three-Dimensional Echocardiography(Echo/Doppler-2 (I) OE52,Oral Presentation (English),The 70th Anniversary Annual S
- Mitral Leaflets and Annulus Geometry in Ischemic Mitral Regurgitation : Assessment by Newly Developed Anatomical Image Creation System With Three-dimensional Echocardiography(Diagnosis and Treatment of Valvular Heart Disease-Multidiciplinary Treatment of
- Multiple Left Ventricular Aneurysms in a Patient With Cardiac Sarcoidosis
- Frequency and Spatial Distribution of Thin-Cap Fibroatheroma Assessed by 3-Vessel Intravascular Ultrasound and Optical Coherence Tomography : An Ex Vivo Validation and an Initial In Vivo Feasibility Study
- C-reactive protein predicts non-target lesion revascularization and cardiac events following percutaneous coronary intervention in patients with angina pectoris
- PJ-060 Direct Ultrasound Measurements of Strain Using Newly-developed 3-Dimensional Myocardial Tracking Image in Normal Adults(PJ010,Echo/Doppler (New Technology) 2 (I),Poster Session (Japanese),The 73rd Annual Scientific Meeting of The Japanese Circulati
- Quantitative measurement of mitral valve coaptation in functional mitral regurgitation : In vivo experimental study by real-time three-dimensional echocardiography
- Massive Thrombus in a Patient With Peripartum Fulminant Myocarditis
- Clinical Implication of Energy Loss Coefficient in Patients With Severe Aortic Stenosis Diagnosed by Doppler Echocardiography
- PJ-339 Association of Coronary Plaque Characteristics by Virtual HistologyTM Intravascular Ultrasound and Coronary Temperature(Intravascular endoscopy/Intravascular ultrasound(06)(I),Poster Session(Japanese),The 72nd Annual Scientific Meeting of the Japan
- PJ-010 Assessment of Cell Density in the Fibrous Cap by Optical Coherence Tomography(Acute myocardial infarction, clinical(diagnosis/treatment)(08)(IHD),Poster Session(Japanese),The 72nd Annual Scientific Meeting of the Japanese Circulation Society)
- OE-253 Natural History of the Thin-Cap Fibroatheroma Assessed by Optical Coherence Tomography in Vivo(Coronary revascularization, PCI(02)(IHD),Oral Presentation(English),The 72nd Annual Scientific Meeting of the Japanese Circulation Society)
- PJ-817 Local Release of C-reactive Protein and Plaque Characteristics by Integrated Backscatter Intravascular Ultrasound : A Comparison between Stable and Unstable Angina(PJ137,Intravascular Imagings 1 (I),Poster Session (Japanese),The 73rd Annual Scienti
- PE-425 Renal Flow Reserve and Renal Resistance Index after Successful Percutaneous Renal Angioplasty for Renal Artery Stenosis Predict Renal Functional Recovery(PE071,Echo/Doppler (Peripheral/Vascular) (I),Poster Session (English),The 73rd Annual Scientif
- OE-162 Does Mild to Moderate MR Progress after Bypass Surgery? A Serial Doppler Echocardiographic Study(Cardiovascular surgery/CABG-1, The 71st Annual Scientific Meeting of the Japanese Circulation Society)
- PJ-431 Improvement of Flow Capacity of a Left Internal Thoracic Artery Graft Assessed by a Pressure Wire(Intravascular Endoscopy/Intravascular Ultrasound 4 (I) : PJ72)(Poster Session (Japanese))
- Novel Rat Model of Ischemic Cardiomyopathy Induced by Repetitive Myocardial Ischemia/Reperfusion Injury While Conscious
- PJ-012 Nicorandil Could Induce NO Production in Coronary Circulation. : Real-time Measurement Using a Catheter-type NO Sensor(Coronary circulation, basic/clinical-4 (IHD) PJ2,Poster Session (Japanese),The 70th Anniversary Annual Scientific Meeting of the
- PJ-406 Importance of Repetitive Transesophageal Echocardiography in the Early Detection of Perivalvular Abscess in Patients With Infective Endocarditis(Valvular herat disease/Pericarditis/Cardiac tumor-3, The 71st Annual Scientific Meeting of the Japanese
- PE-273 Dynamics of Mitral Complex Geometry during Acute Left Ventricular Pressure Overload : In Vivo Experimental Study by Using Real-time 3D Echocardiography(Valvular heart disease/Pericarditis/Cardiac tumor-2, The 71st Annual Scientific Meeting of the J
- Left Ventricular Rupture Associated With Takotsubo-like Left Ventricular Dysfunction (Apical Ballooning)
- Simultaneous Systemic/Pulmonary Embolism Caused by Deep Vein Thrombosis
- Free-floating Left Atrial Ball Thrombus in Non-valvular Atrial Fibrillation
- Perforated Mitral Valve Aneurysm in the Anterior Leaflet Associated With Lateral Scallop Prolapse
- Assessment of the Histological Characteristics of Coronary Arterial Plaque With Severe Calcification
- Assessment of Coronary Intima-Media Thickness by Optical Coherence Tomography : Comparison With Intravascular Ultrasound
- PJ-788 Evaluation of Coronary Endothelial Function in High-fat Dietinduced Obese Dogs by Using Catheter-type No Sensor(Endothelium-4, The 71st Annual Scientific Meeting of the Japanese Circulation Society)
- OE-088 Multiple Thin-cap Fibroatheromas Assessed by Three Vessel Histological and Optical Coherence Tomographic Study(Intravascular endoscopy/Intravascular ultrasound-1, The 71st Annual Scientific Meeting of the Japanese Circulation Society)
- Quantitative measurements of aortic valve coaptation by three-dimensional transesophageal echocardiography in patients with aortic regurgitation without primary leaflet disease
- Geometrical Demonstration and Three-Dimensional Quantitative Analysis of the Mitral Valve With Real-Time Three-Dimensional Echocardiography : Novel Anatomical Image Creation System
- Relation Between Ischemic Mitral Regurgitation and TIMI Perfusion Grade after Coronary Intervention in Patients with Inferior Myocardial Infarction(Echo/Doppler 3 (I), The 69th Annual Scientific Meeting of the Japanese Circulation Society)
- Effects of Intra-Aortic Balloon Counterpulsation on Coronary Pressure in Patients With Stenotic Coronary Artery(Emergency Care 1 (H), The 69th Annual Scientific Meeting of the Japanese Circulation Society)
- Assessment of Vulnerable Plaques by Intracoronary Temperature Measurements Using a Combined Pressure-Thermometer Guide Wire(Diagnosis and Treatment of Acute Coronary Syndrome, The 69th Annual Scientific Meeting of the Japanese Circulation Society)
- OJ-396 Evaluation of Left Anterior Descending Coronary Artery by High-Frequency Transthoracic Echocardiography : Comparison with Simultaneous Intravascular Ultrasound Measurements(Echo/Doppler 14 (I) : OJ48)(Oral Presentation (Japanese))
- Automatic Quantification of Left Ventricular Systolic Wall Thickening Using Two-Dimensional Strain Assessed by a Novel Tissue-Tracking System
- Coronary microvascular endothelial function deteriorates late (12 months) after sirolimus-eluting stent implantation
- Systemic inflammation and left atrial thrombus in patients with non-rheumatic atrial fibrillation
- 6 Assessment of Vulnerable Plaques Using a Newly Developed Combination Catheter of Intravascular Ultrasound with Thermography(Symposiums (SY3) (I) : Imaging Vulnerable Atherosclerotic Plaque : The Evolving of New Imaging Technique)(Special Program)
- Preoperative assessment scale for elderly Japanese patients (part I) : basic study design and clinical trial
- Clinical Applicability of Two-dimensional Strain and Strain-rate Assessed by a Novel Tissue Tracking System(Echo/Doppler 6 (I), The 69th Annual Scientific Meeting of the Japanese Circulation Society)
- PJ-606 Up-regulation of CXCL16/SR-PSOX and recruitment of CD8+ cells in cardiac valves during inflammatory valvular heart disease(Valvular Heart Disease/Pericarditis/Cardiac Tumor 3 (M) : PJ102)(Poster Session (Japanese))
- Assessment of Coronary Microcirculation in Patients With Takotsubo-Like Left Ventricular Dysfunction
- PJ-610 Value of Mitral Flow Rumble as a Marker of Severe Mitral Regurgitation : Comparative Evaluation With Phonocardiogram and Quantitative Doppler Echocardiography(Valvular Heart Disease/Pericarditis/Cardiac Tumor 3 (M) : PJ102)(Poster Session (Japanese
- Adaptive On-Line Frequency Stabilization System for Laser Diodes Based on Genetic Algorithm(Lasers, Quantum Electronics)
- A Compact and Efficient Frequency Stabilization System for 35mW Visible Laser Diode with Real-Time Power Spectral Density Monitor(Special Issue on Recent Progress in Semiconductor Lasers and Light-Emitting Devices)
- Impaired coronary flow reserve in obstructive sleep apnea and its improvement after continuous positive airway pressure therapy : a transthoracic Doppler echocardiographic study
- Natural History of Stent Edge Dissection, Tissue Protrusion and Incomplete Stent Apposition Detectable Only on Optical Coherence Tomography After Stent Implantation : Preliminary Observation
- Quantification of mitral valve apparatus by three-dimensional transesophageal echocardiography : in vitro validation study comparing two different analysis systems
- Prediction of Congestive Heart Failure in Patients with Non Valvular Atrial Fibrillation
- Visualization of Neointima Formation by Optical Coherence Tomography