Laser Intensity Stabilization System Using Laser-Diode-Pumped Nd:YAG Rod-Laser Amplifier
スポンサーリンク
概要
- 論文の詳細を見る
We have developed an intensity stabilization system using a laser-diode (LD)-pumped Nd:YAG rod-laser amplifier as an intensity control device; an injection current to the pumping LDs is controlled to change the intensity of the amplified output. To control the injection current, we have newly designed a current-shunt circuit making use of an opto-coupler, which is quite effective in isolating the control circuit where very small signals must be handled from the high-current circuit to drive the pumping LDs. Using this circuit, we have obtained a high open-loop gain of about 100 dB at 100 Hz. We have also measured the phase noise induced in the laser rod caused by the change in the pumping current and confirmed that the cross-coupling between the intensity stabilization signal and the phase noise is negligible. Here, we report the details of the system and the attained noise level.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2007-08-15
著者
-
Moriwaki Shigenori
Department Of Advanced Material Science The University Of Tokyo
-
Mio Norikatsu
Department Of Advanced Material Science The University Of Tokyo
-
Ozeki Takafumi
Department of Advanced Materials Science, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
-
Machida Kosuke
Department of Advanced Materials Science, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
-
Moriwaki Shigenori
Department of Advanced Materials Science, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
関連論文
- Experimental Efforts to Detect Gravitatoional Waves : Large Scale Cryogenic Gravitational Wave Telscope(Chapter 1. Relativistic Astrophysics and Gravitational Waves-Recent Developments-, Part I: Invited Talks, The Next Chapter in Einstein's Legacy)
- Frequency Discrimination Method Making Use of Polarization Selectivity of Triangular Optical Cavity
- Wideband Frequency Stabilization of a 100-W Injection-Locked Nd:YAG Laser Using an External Electrooptic Modulator
- Development of Electrooptic Modulator for Advanced Ground-Based Gravitational Wave Telescopes Using Stoichiometric MgO-Doped LiNbO_3 Crystals
- Laser Interferometer Instrumented in a Disk Antenna for Gravitational Radiation
- Frequency Modulation Method for a He-Ne Laser Using the Mechanical Resonance of the Laser Cavity
- Interferometric Gravitational Wave Detector Using the Transmission Light of the Fabry-Perot Cavity
- Mechanical $Q$-factor Measurement of a Quartz Oscillator at Cryogenic Temperature
- Shot-Noise Limited Low-Frequency Intensity Noise of a Nd:YAG Laser
- Dynamic Null Experiment to Test the Law of Gravitation
- Large-Scale Cryogenic Gravitational Wave Telescope (LCGT)
- Mechanical Transfer Function of a Pendulum Suspended with a Finite-Mass Wire
- Large-Scale Cryogenic Gravitational Wave Telescope (LCGT)
- Laser Intensity Stabilization System Using Laser-Diode-Pumped Nd:YAG Rod-Laser Amplifier
- High-Power and Low-Noise Photodetector for Interferometric Gravitational Wave Detectors
- High-Speed Mechanical Actuator for Precision Optical Path Length Control
- Internal Friction Originating from Random Magnetism