Optical modulators as monolithically integrated optical isolators

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	Optical modulators as monolithically integrated optical isolators
其他题名	Optical modulators as monolithically integrated optical isolators
	KOCH, THOMAS LAWSON; KOYAMA FUMIO; LIOU KANG-YIH; KOCH THOMAS L
	1995-05-03
专利权人	AMERICAN TELEPHONE AND TELEGRAPH COMPANY
公开日期	1995-05-03
授权国家	加拿大
专利类型	发明申请
摘要	OPTICAL MODULATORS AS MONOLITHICALLY INTEGRATED OPTICAL ISOLATORSAbstract An apparatus and technique for providing isolationfor a signal source utilizing two or more modulators isdescribed. In particular, the apparatus generates a timedsequence of "open gates" that are synchronized to the datasignal which permit transmission in a forward direction,and which attenuate a reverse direction signal. Anotherembodiment attenuates primarily reflected light signals byutilizing a passive waveguide and a modulator. Thepassive waveguide provides a propagation delay such thatsignals reflected from its end facet are attenuated by themodulator. The apparatus is suitable for use as anisolator for a light source in a high-speed optical fiberdata transmission system.
其他摘要	作为单片集成光学隔离器的光调制器摘要描述了一种利用两个或更多个调制器为信号源提供隔离的装置和技术。具体地说，该装置产生与数据信号同步的“打开的门”的时间序列，该数据信号允许正向传输，并且衰减反向信号。通过利用无源波导和调制器，另一个实施例主要衰减反射光信号。无源波导提供传播延迟，使得从端面反射的信号被调制器衰减。该设备适合用作高速光纤数据传输系统中光源的anis光器。
主权项	A monolithically integrated signal source and isolator apparatus for providing a stable, low frequency chirp source device for high-speed fiber-optic data transmission, comprising: a laser light source utilized as the signal source; a first modulator driven to be synchronous with a transmitted data stream from the signal source; a second modulator driven to be synchronous with the transmitted data stream, wherein the second modulator is sequentially arranged and spaced a distance apart from the first modulator to provide a phase delay between them, and wherein the modulators generate a timed sequence of open gates which permit transmission of a data signal in a forward direction and attenuate a reverse direction signal; and a semiconductor substrate, with the laser light source and the first and second modulators monolithically integrated on the semiconductor substrate.
申请日期	1994-07-26
专利号	CA2128839A1
专利状态	失效
申请号	CA2128839
公开（公告）号	CA2128839A1
IPC 分类号	G02F1/01 \| H01L \| H04B10/04 \| H01S5/026 \| H04B10/06 \| H01S3/00 \| H01S5/00 \| G02F1/025 \| H01S5/50 \| H01S \| H01S5/0625 \| H01L27/15 \| H04B10/142 \| H04B10/152 \| H04B
专利代理人	-
代理机构	KIRBY EADES GALE BAKER
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/64736
专题	半导体激光器专利数据库
作者单位	AMERICAN TELEPHONE AND TELEGRAPH COMPANY
推荐引用方式 GB/T 7714	KOCH, THOMAS LAWSON,KOYAMA FUMIO,LIOU KANG-YIH,et al. Optical modulators as monolithically integrated optical isolators. CA2128839A1[P]. 1995-05-03.