Low frequency fluctuations and the stabilization in semiconductor laser diodes

半导体激光二极管的低频波动和稳定性

• 批准号: 05452198
• 负责人: TAKAGI Keiji
• 金额: $ 3.52万
• 依托单位: Kyushu Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05452198/
• 关键词: Laser; Fluctuation; Noise; Low-frequency; Stabilization; 1; f

A system for analyzing low frequency light fluctuation is set up with amonochromator (MC50N) and multi-channel detector (Hamamatsu C2326). The multi-channel detector includes a PCD Image Sensor which has 256 sensing elements. The light output of a laser diode is divided into various wavelengths and the light spectral intensities are obtained at various wavelengths. The current noise is also measured. The noises show 1/f spectra. This can explained by the superposition of the Lorentzian spectra. The correlation coefficient between the light and the driving current was calculated from the measured values in single- and multi-mode operations. The optical feedback was carried out to the laser diode and the noise reduction was demonstrated. The mode-hopping noise and mode partition noise would often occur in multi-mode operation on the light output of laser diodes. Employing this analyzing system, more detailed study including the current dependence of the noise will be carried out and the 1/f noise problem should be studied more intensively in the low ferquency range including the other semiconductor devices.

利用单色仪（MC 50 N）和多道探测器（HamamatsuC 2326）建立了一套低频光起伏分析系统。多通道探测器包括一个PCD图像传感器，具有256个传感元件。激光二极管的光输出被分成各种波长，并且在各种波长处获得光谱强度。还测量了电流噪声。噪声呈现1/f谱。这可以用洛伦兹谱的叠加来解释。从单模式和多模式操作中的测量值计算光和驱动电流之间的相关系数。对半导体激光器进行了光反馈，并进行了降噪实验。激光二极管多模工作时，在输出光中经常会出现跳模噪声和模分配噪声。采用这种分析系统，将进行更详细的研究，包括噪声的电流依赖性和1/f噪声问题应在低频范围内，包括其他半导体器件进行更深入的研究。

项目成果

S.Yang, T.Sasaki, T.Mizunami and K.Takagi: "Measurements on low-frequency fluctuation in the laser diodes." IEEE Trans.on ED.41,11. 2162-2163 (1994)

S.Yang、T.Sasaki、T.Mizunami 和 K.Takagi：“激光二极管低频波动的测量”。

高樹: "Measurements on low freguency prase and Amplitude fluctuations and its application to reduce the nuise in bipolar fransistors" IEICE Trans.Comm.E78-B. 279-280 (1995)

Takagi：“低频脉冲和振幅波动的测量及其在减少双极晶体管噪声中的应用”IEICE Trans.Comm.E78-B (1995)。

S.Yang,T.Sasaki,T.Mizunami and K.Takagi,: "Measurements on low-frequency fluctuation in the laser diodes." IEEE Trans.on ED.41. 520-523 (1994)

S.Yang、T.Sasaki、T.Mizunami 和 K.Takagi，：“激光二极管低频波动的测量”。

K.Takagi,T.Mizunami,S.Yang and M.Wada,: "Low-Frequency Fluctuation of the Transport Factor in Junction Transistors." J.J.A.P.32. 3782-3783 (1993)

K.Takagi、T.Mizunami、S.Yang 和 M.Wada，：“结型晶体管中传输因子的低频波动”。

K.Takagi, T.Mizunami, S.Yang and M.Wada: "Low-Frequency Fluctuation of the Transport Factor in Junction Transistors." J.J.A.P.32,9A. 3782-3783 (1993)

K.Takagi、T.Mizunami、S.Yang 和 M.Wada：“结型晶体管中传输因子的低频波动”。