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    • 3. 发明专利
    • Recording apparatus and optical oscillation device
    • 记录装置和光学振荡装置
    • JP2012064920A
    • 2012-03-29
    • JP2011111866
    • 2011-05-18
    • Sony Corpソニー株式会社
    • FUJITA GOROKURAMOTO MASARUWATANABE HIDEKIMIYAJIMA TAKAO
    • H01S5/065H01S5/026
    • H01S5/0265B82Y20/00G11B7/0045G11B7/126G11B7/127G11B2007/00457H01S5/0202H01S5/028H01S5/0614H01S5/0658H01S5/06821H01S5/2009H01S5/22H01S5/3216H01S5/34306
    • PROBLEM TO BE SOLVED: To provide a recording apparatus which can obtain a desired pulse light frequency easily using a single element based simple structure.SOLUTION: A recording apparatus 200, designed to record information on an optical recording medium 21, comprises a self-oscillating semiconductor laser 1, containing therein a supersaturated absorber unit for applying a bias voltage Vsa and a gain unit for injecting gain current, which emits laser light used for recording information to an optical recording medium 21; a reference signal generation unit 14 which, in addition to generating a master clock signal, supplies an injection signal synchronized with the master clock signal to the gain unit of the self-oscillating semiconductor laser 1; and a recording signal generation unit 13 which, while generating a recording signal based on the master clock signal, applies the recording signal as a bias voltage Vsa to the supersaturated absorber unit of the self-oscillating semiconductor laser 1.
    • 要解决的问题:提供一种能够使用单个元件的简单结构容易地获得期望的脉冲光频率的记录装置。 解决方案:设计用于在光学记录介质21上记录信息的记录装置200包括自振荡半导体激光器1,其中包含用于施加偏置电压Vsa的过饱和吸收器单元和用于注入增益电流的增益单元 ,其将用于记录信息的激光发射到光学记录介质21; 参考信号生成单元14除了产生主时钟信号之外,还将与主时钟信号同步的注入信号提供给自激半导体激光器1的增益单元; 以及记录信号生成单元13,其在基于主时钟信号生成记录信号的同时,将记录信号作为偏置电压Vsa施加到自激振荡半导体激光器1的过饱和吸收体单元。(COPYRIGHT:( C)2012,JPO&INPIT
    • 10. 发明专利
    • Light source apparatus, optical signal generator, and electric signal generator
    • 光源装置,光信号发生器和电信号发生器
    • JP2012146787A
    • 2012-08-02
    • JP2011003322
    • 2011-01-11
    • Advantest Corp株式会社アドバンテスト
    • MASUDA SHINSHIODA KAZUNORI
    • H01S5/068H01S3/067H01S5/40
    • H01S5/0427H01S3/0064H01S3/06754H01S5/0057H01S5/06821H01S5/4006
    • PROBLEM TO BE SOLVED: To provide a light source which outputs optical frequency modulation light having a constant output light intensity.SOLUTION: A light source apparatus, which outputs an optical signal having an optical frequency according to a frequency control signal, comprises: a laser light source for outputting laser light having an optical frequency according to the frequency control signal; and a light intensity adjustment part for compensating a change in the intensity of the laser light so as to output the laser light for which the change in the intensity that is caused by a change in the optical frequency is suppressed. The light intensity adjustment part comprises an optical amplification part for adjusting the amplification factor of the laser light from the laser light source part on the basis of the frequency control signal to suppress the change in the intensity of the laser light that occurs in response to the frequency control signal and perform output.
    • 要解决的问题:提供输出具有恒定输出光强度的光调制光的光源。 解决方案:一种根据频率控制信号输出具有光频率的光信号的光源装置,包括:激光源,用于输出具有根据频率控制信号的光频率的激光; 以及用于补偿激光强度变化的光强度调节部件,以便输出由光频率变化引起的强度变化的激光。 光强度调节部分包括一个光放大部分,用于根据频率控制信号调节来自激光光源部分的激光的放大系数,以抑制响应于该激光光源的激光强度的变化 频率控制信号并执行输出。 版权所有(C)2012,JPO&INPIT