Semiconductor laser

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	Semiconductor laser
其他题名	Semiconductor laser
	SHIMIZU AKIRA
	1988-01-21
专利权人	CANON INC
公开日期	1988-01-21
授权国家	日本
专利类型	发明申请
摘要	PURPOSE:To provide a semiconductor laser capable of emitting a plurality of coherent light fluxes spaced from each other by a large distance, by arranging a plurality of waveguides having a curved shape such that they are close to respective adjacent waveguides or such that they are formed integrally in a part. CONSTITUTION:Three waveguides G1, G2 and G3 are arranged side by side. Each waveguide has a shape of an arc whose chord has a length W. Light fluxes L1, L2, L3 and L4 are emitted from the ends of the arcs as indicated by the arrows in the drawings. Taking the case of the arc or waveguide G1 as an example, a phase difference between the light fluxes L1 and L2 is given by Q/lambda when Q is a resonator length of G1 (a length of the waveguide) and lambdais a wavelength of oscillation. The value Q/lambda is equal to an integral multiple of pi when considered from the resonance conditions. Accordingly, the phase difference between the light fluxes L1 and L2 is 0 deg. or 180 deg., while the light fluxes L1 and L2 are coherent in either case. This semiconductor laser may be utilized as a holography light source.
其他摘要	目的：通过设置多个具有弯曲形状的波导使得它们靠近相应的相邻波导或者形成它们，提供能够发射相互隔开大距离的多个相干光通量的半导体激光器。整体在一个部分。组成：三个波导G1，G2和G3并排排列。每个波导具有弧形的形状，其弦长为W.光束L1，L2，L3和L4从弧的端部发射，如图中箭头所示。以弧或波导G1的情况为例，当Q是G1的谐振器长度（波导的长度）并且λ是振荡的波长时，光通量L1和L2之间的相位差由Q /λ给出。。当从谐振条件考虑时，值Q /λ等于pi的整数倍。因此，光通量L1和L2之间的相位差是0度。或者180度，而光通量L1和L2在任何一种情况下都是相干的。该半导体激光器可以用作全息光源。
申请日期	1986-07-07
专利号	JP1988014487A
专利状态	失效
申请号	JP1986157987
公开（公告）号	JP1988014487A
IPC 分类号	H01S5/00 \| H01S3/18
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/181661/84998
专题	半导体激光器专利数据库
作者单位	CANON INC
推荐引用方式 GB/T 7714	SHIMIZU AKIRA. Semiconductor laser. JP1988014487A[P]. 1988-01-21.

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