公开(公告)号：US20110116802A1

公开(公告)日：2011-05-19

申请号：US13054158

申请日：2009-06-30

申请人： Shin Kamei ,  Tsutomu Kitoh ,  Masaki Kohtoku ,  Tomohiro Shibata ,  Takuya Tanaka ,  Yasuyuki Inoue ,  Mikitaka Itoh

发明人： Shin Kamei ,  Tsutomu Kitoh ,  Masaki Kohtoku ,  Tomohiro Shibata ,  Takuya Tanaka ,  Yasuyuki Inoue ,  Mikitaka Itoh

IPC分类号： H04J14/02

CPC分类号： G02B6/12028 ,  G02B6/12019 ,  G02B6/29352 ,  G02B6/29398

摘要： An optical wavelength multiplexing/de-multiplexing circuit having a low loss and a flat transmission spectrum is provided. The optical wavelength multiplexing/de-multiplexing circuit compensates a temperature dependence of a center transmission wavelength which remains in an athermal AWG, and has an excellent accuracy of the center transmission wavelength in a whole operating temperature range or has a comparatively wide operable temperature range. The temperature dependence of the transmission wavelength in the athermal MZI is modulated and set so as to cancel the temperature dependence of the center wavelength which remains in the athermal AWG. The present invention focuses particularly on an optical coupler in the MZI and modulates the temperature dependence of the transmission wavelength in the MZI by providing the optical coupler itself with a mechanism which changes a phase difference between two outputs by temperature.

摘要翻译： 提供具有低损耗和平坦透射光谱的光波长多路复用/解复用电路。 光波长复用/解复用电路补偿保持在无热AWG中的中心透射波长的温度依赖性，并且在整个工作温度范围内具有优异的中心透射波长的精度或具有相当宽的可操作温度范围。 在无热MZI中的透射波长的温度依赖性被调制和设定，以抵消保持在无热AWG中的中心波长的温度依赖性。 本发明特别着重于MZI中的光耦合器，并且通过为光耦合器本身提供一种通过温度改变两个输出之间的相位差的机构来调制MZI中的透射波长的温度依赖性。

公开(公告)号：US06320888B1

公开(公告)日：2001-11-20

申请号：US09156500

申请日：1998-09-18

申请人： Takuya Tanaka ,  Hiroshi Takahashi ,  Akimasa Kaneko ,  Akira Himeno ,  Yasuyuki Inoue

发明人： Takuya Tanaka ,  Hiroshi Takahashi ,  Akimasa Kaneko ,  Akira Himeno ,  Yasuyuki Inoue

IPC分类号： H01S514

CPC分类号： H01S5/146 ,  H01S5/02248 ,  H01S5/02469 ,  H01S5/06256 ,  H01S5/1039 ,  H01S5/141 ,  H01S5/4087

摘要： A frequency stabilized laser using an integrated external cavity, comprising a semiconductor laser diode and an optical waveguide installed on the same substrate, and having an optically induced grating formed in the optical waveguide suppresses mode hopping due to a temperature change to stabilize the oscillation frequencies of the laser. A material having a refractive index temperature coefficient opposite in sign to the refractive index temperature coefficient of the semiconductor laser diode is installed on that portion of the optical waveguide between the semiconductor laser diode and the optically induced grating which has been formed by removing an upper cladding and a core, or removing the upper cladding, the core, and a lower cladding.

摘要翻译： 使用集成外部空腔的频率稳定化激光器，包括安装在同一基板上的半导体激光二极管和光波导，并且具有形成在光波导中的光学感应光栅，抑制由于温度变化引起的模式跳变，以使振荡频率稳定 激光。 具有与半导体激光二极管的折射率温度系数相反的折射率温度系数的材料安装在半导体激光二极管和通过去除上部包层而形成的光学感应光栅之间的光波导部分 和芯，或去除上包层，芯和下包层。