阅读说明：本技术 波长可调谐激光器 (Wavelength tunable laser ) 是由 赵家霖 陈微 宋小鹿 于 2018-04-09 设计创作，主要内容包括：本申请揭示了一种波长可调谐激光器。该波长可调谐激光器包括反射式半导体光放大器、三个耦合器和至少两个微环谐振器；其中,所述反射式半导体光放大器跟所述第一耦合器的一个端口连接,所述第一耦合器的另一端口和所述第二耦合器的一个端口之间放置所述至少两个微环谐振器中的部分微环谐振器,所述第一耦合器的第三端口和所述第二耦合器的第二端口之间放置所述至少两个微环谐振器中的另一部分微环谐振器,所述第二耦合器的第三端口和第四端口跟所述第三耦合器的两个端口连接。通过对称设计,本申请揭示的波长可调谐激光器可以提高光信号输出效率。(The application discloses a wavelength tunable laser. The wavelength tunable laser comprises a reflective semiconductor optical amplifier, three couplers and at least two micro-ring resonators; the reflective semiconductor optical amplifier is connected with one port of the first coupler, a part of the at least two micro-ring resonators is placed between the other port of the first coupler and one port of the second coupler, another part of the at least two micro-ring resonators is placed between the third port of the first coupler and the second port of the second coupler, and the third port and the fourth port of the second coupler are connected with two ports of the third coupler. Through the symmetrical design, the wavelength tunable laser disclosed by the application can improve the output efficiency of optical signals.)