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    • 9. 发明授权
    • Light source
    • 光源
    • US07386021B2
    • 2008-06-10
    • US11437791
    • 2006-05-22
    • Raman Kashyap
    • Raman Kashyap
    • H01S3/04
    • G02F1/0147G02F1/353G02F1/3775G02F2201/307H01S5/0092H01S5/02248H01S5/02407H01S5/02438H01S5/147
    • In a first broad aspect, the invention provides a light source. The light source includes a semiconductor laser for emitting laser light at a first frequency. The light source also includes an optical fibre that includes a fibre Bragg grating. The fibre Bragg grating is optically coupled to the semiconductor laser for receiving the laser light, reflecting a reflected portion of the laser light towards the laser and allowing the transmitted portion of the laser light to pass through the fibre Bragg grating. The fibre Bragg grating has a temperature-dependant reflection spectrum. A frequency converting optical element is optically coupled to the fibre Bragg grating for receiving the transmitted portion of the laser light and converting at least a fraction of the transmitted portion of the laser light into a converted light having a second frequency different from the first frequency. An output port is optically coupled to the frequency converting optical element for outputting the converted light. A temperature controller is thermally coupled to the fibre Bragg grating for modulating a temperature of the fibre Bragg grating so as to modulate the reflection spectrum.
    • 在第一个广泛的方面,本发明提供一种光源。 光源包括用于以第一频率发射激光的半导体激光器。 光源还包括包括光纤布拉格光栅的光纤。 光纤布拉格光栅光学耦合到半导体激光器以接收激光,将激光的反射部分反射向激光器并允许透射的部分激光通过光纤布拉格光栅。 光纤布拉格光栅具有温度依赖反射光谱。 频率转换光学元件光学耦合到光纤布拉格光栅,用于接收激光的透射部分,并将激光的透射部分的至少一部分转换为具有与第一频率不同的第二频率的转换光。 输出端口光耦合到变频光学元件,用于输出转换的光。 温度控制器热耦合到光纤布拉格光栅,用于调制光纤布拉格光栅的温度,以便调制反射光谱。
    • 10. 发明申请
    • Light source
    • 光源
    • US20070064756A1
    • 2007-03-22
    • US11437791
    • 2006-05-22
    • Raman Kashyap
    • Raman Kashyap
    • H01S5/00
    • G02F1/0147G02F1/353G02F1/3775G02F2201/307H01S5/0092H01S5/02248H01S5/02407H01S5/02438H01S5/147
    • In a first broad aspect, the invention provides a light source. The light source includes a semiconductor laser for emitting laser light at a first frequency. The light source also includes an optical fibre that includes a fibre Bragg grating. The fibre Bragg grating is optically coupled to the semiconductor laser for receiving the laser light, reflecting a reflected portion of the laser light towards the laser and allowing the transmitted portion of the laser light to pass through the fibre Bragg grating. The fibre Bragg grating has a temperature-dependant reflection spectrum. A frequency converting optical element is optically coupled to the fibre Bragg grating for receiving the transmitted portion of the laser light and converting at least a fraction of the transmitted portion of the laser light into a converted light having a second frequency different from the first frequency. An output port is optically coupled to the frequency converting optical element for outputting the converted light. A temperature controller is thermally coupled to the fibre Bragg grating for modulating a temperature of the fibre Bragg grating so as to modulate the reflection spectrum.
    • 在第一个广泛的方面,本发明提供一种光源。 光源包括用于以第一频率发射激光的半导体激光器。 光源还包括包括光纤布拉格光栅的光纤。 光纤布拉格光栅光学耦合到半导体激光器以接收激光,将激光的反射部分反射向激光器并允许透射的部分激光通过光纤布拉格光栅。 光纤布拉格光栅具有温度依赖反射光谱。 频率转换光学元件光学耦合到光纤布拉格光栅,用于接收激光的透射部分,并将激光的透射部分的至少一部分转换成具有与第一频率不同的第二频率的转换光。 输出端口光耦合到变频光学元件,用于输出转换的光。 温度控制器热耦合到光纤布拉格光栅,用于调制光纤布拉格光栅的温度,以便调制反射光谱。