Generation of millimeter-wave sub-carrier optical pulse by using cascaded all-pass cavities

• 作 者: 徐钦峰 叶青 潘政清 方祖捷 蔡海文 瞿荣辉
• 机 构: Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,
• 出 处: Chinese Optics Letters
• 发表日期: 2010年01期
• 关键词: cascaded millimeter waveguide extinction resonator waveform repetition mirror tr

A novel scheme is proposed to transform an ultra-short optical pulse to a millimeter-wave frequencymodulated pulse by using the cascaded all-pass cavities(APCs).The envelope waveform of the generated pulse train is calculated,showing effective improvement by APC cascading.The extinction ratio is analyzed with different input pulses,different cavity reflectivities,and different cascading numbers.It is shown that the cascading does not introduce much effect on the extinction ratio.Two designs by using Gires-Tournois cavity and waveguide ring resonators are proposed to realize the cascaded APC.

A novel scheme is proposed to transform an ultra-short optical pulse to a millimeter-wave frequency modulated pulse by using the cascaded all-pass cavities (APCs). Envelope waveform of the generated pulse train is calculated, showing effective improvement by APC cascading. The extinction ratio is analyzed with different input pulses, different cavity reflectivities, and different cascading numbers. It is shown that the cascading does not introduce much effect on the extinction ratio. Two designs by using Gires-Tournois cavity and waveguide ring resonators are to realize the cascaded APC.