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	Integrated laser-amplifier with steerable beam
	WELCH, DAVID F.; WAARTS, ROBERT G.; MEHUYS, DAVID G.; CRAIG, RICHARD R.
	1991-03-26
著作权人	SDL, INC.
专利号	US5003550
国家	美国
文献子类	授权发明
其他题名	Integrated laser-amplifier with steerable beam
英文摘要	A monolithic integrated master oscillator power amplifier (MOPA) device including a single mode diode laser with distributed Bragg reflectors, an amplifier in tandem with the laser, lateral phase controllers and a detuned second order grating surface output coupler, all on a common substrate. The amplifier is a flared waveguide in one embodiment, and a branching network of single mode waveguides followed by an array of single mode gain waveguides in another embodiment. The diode laser is tunable by means of a separate tuning current applied to the rear Bragg reflector. Tuning the laser wavelength provides, in conjunction with the output coupler, a longitudinal steering of the output beam. The lateral phase controllers are an array of separately addressable electrodes that adjust the optical path length to compensate for phase variation in the amplifiers and also to provide lateral steering of the output beam. An additional embodiment includes a chain of amplifiers and grating output couplers for providing multiple output beams.
公开日期	1991-03-26
申请日期	1990-03-09
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/46073]
专题	半导体激光器专利数据库
作者单位	SDL, INC.
推荐引用方式 GB/T 7714	WELCH, DAVID F.,WAARTS, ROBERT G.,MEHUYS, DAVID G.,et al. Integrated laser-amplifier with steerable beam. US5003550. 1991-03-26.

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