Dual-ring-modulated laser that uses push-pull modulation

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	Dual-ring-modulated laser that uses push-pull modulation
其他题名	Dual-ring-modulated laser that uses push-pull modulation
	LUO, YING; LIN, SHIYUN; KRISHNAMOORTHY, ASHOK V.; BOVINGTON, JOCK T.; ZHENG, XUEZHE
	2017-05-18
专利权人	ORACLE INTERNATIONAL CORPORATION
公开日期	2017-05-18
授权国家	美国
专利类型	发明申请
摘要	A dual-ring-modulated laser includes a gain medium having a reflective end coupled to a gain-medium reflector and an output end coupled to a reflector circuit to form a lasing cavity. This reflector circuit comprises: a first ring modulator; a second ring modulator; and a shared waveguide that optically couples the first and second ring modulators. The first and second ring modulators have resonance peaks, which are tuned to have an alignment separation from each other. During operation, the first and second ring modulators are driven in opposing directions based on the same electrical input signal, so the resonance peaks of the first and second ring modulators shift wavelengths in the opposing directions during modulation. The modulation shift for each of the resonance peaks equals the alignment separation, so the resonance peaks interchange positions during modulation to cancel out reflectivity changes in the lasing cavity caused by the modulation.
其他摘要	双环调制激光器包括具有耦合到增益介质反射器的反射端的增益介质和耦合到反射器电路以形成激光腔的输出端。该反射器电路包括：第一环形调制器;第二环调制器;以及光学耦合第一和第二环形调制器的共用波导。第一和第二环调制器具有谐振峰，其被调谐为具有彼此之间的对准分离。在操作期间，基于相同的电输入信号，第一和第二环形调制器以相反的方向被驱动，因此第一和第二环形调制器的谐振峰值在调制期间沿相反的方向移动波长。每个谐振峰值的调制偏移等于对准分离，因此谐振峰在调制期间交换位置，以消除由调制引起的激光腔中的反射率变化。
主权项	A dual-ring-modulated laser, comprising: a gain medium having a reflective end coupled to an associated gain-medium reflector; a reflector circuit comprising a first ring modulator, a second ring modulator, a shared waveguide that optically couples the first and second ring modulators together, wherein the first and second ring modulators have resonance peaks that are tuned to have an alignment separation from each other; an input waveguide that couples the gain medium to the reflector circuit to create a lasing cavity; a push-pull drive circuit that drives the first and second ring modulators in opposing directions based on the same electrical input signal, so that the resonance peaks of the first and second ring modulators shift wavelengths in the opposing directions during modulation, wherein the modulation shift for each of the resonance peaks substantially equals the alignment separation, so that the resonance peaks interchange positions during modulation to cancel out reflectivity changes in the lasing cavity caused by the modulation; and at least one output, which is optically coupled to the lasing cavity.
申请日期	2017-01-31
专利号	US20170139237A1
专利状态	授权
申请号	US15/421300
公开（公告）号	US20170139237A1
IPC 分类号	G02F1/01 \| H01S5/026 \| H01S5/125 \| H01S5/30 \| H01S5/50
专利代理人	-
代理机构	-
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/57547
专题	半导体激光器专利数据库
作者单位	ORACLE INTERNATIONAL CORPORATION
推荐引用方式 GB/T 7714	LUO, YING,LIN, SHIYUN,KRISHNAMOORTHY, ASHOK V.,et al. Dual-ring-modulated laser that uses push-pull modulation. US20170139237A1[P]. 2017-05-18.