Semiconductor laser module and method for simultaneously reducing relative intensity noise (RIN) ans stimulated brillouin scattering (SBS)

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	Semiconductor laser module and method for simultaneously reducing relative intensity noise (RIN) ans stimulated brillouin scattering (SBS)
其他题名	Semiconductor laser module and method for simultaneously reducing relative intensity noise (RIN) ans stimulated brillouin scattering (SBS)
	TSUKIJI, NAOKI; YOSHIDA, JUNJI; KIMURA, TOSHIO; KADO, SOUKO
	2003-04-10
专利权人	FURUKAWA ELECTRIC CO., LTD., THE
公开日期	2003-04-10
授权国家	美国
专利类型	发明申请
摘要	A semiconductor laser module including a semiconductor laser device having an integrated diffraction grating configured to output a multiple mode laser beam in the presence of a driving current, an optical fiber configured to guide the multiple mode laser beam to an output of the laser module, and an optical attenuation device configured to attenuate the multiple mode laser beam by an amount sufficient to provide a predetermined output power from the output of the laser module. The optical attenuation device may be an optical coupling lens offset from an optimum coupling position by an amount sufficient to provide the predetermined output power, or an optical attenuator interrupting the optical fiber and configured to attenuate the multiple mode laser beam by an amount sufficient to provide the predetermined output power. Also, a two fiber Raman amplifier having a super large area (SLA) fiber that provides amplification of the signal based primarily on the forward excitation light can also be used to suppress SBS.
其他摘要	一种半导体激光器模块，包括：半导体激光器件，具有：集成衍射光栅，被配置为在存在驱动电流的情况下输出多模激光束;光纤，被配置为将多模激光束引导至激光器模块的输出;以及光学衰减装置，被配置为将多模激光束衰减足以从激光模块的输出提供预定输出功率的量。光学衰减装置可以是从最佳耦合位置偏移足以提供预定输出功率的光学耦合透镜，或者是光学衰减器，其中断光纤并且被配置为将多模激光束衰减足以提供的量。预定的输出功率。此外，具有超大面积（SLA）光纤的双光纤拉曼放大器也可用于抑制SBS，所述超大面积（SLA）光纤主要基于正向激发光提供信号放大。
主权项	A semiconductor laser module comprising: a semiconductor laser device having an integrated diffraction grating and configured to output a multiple mode laser beam in the presence of a driving current; an optical fiber configured to guide the multiple mode laser beam to an output of said laser module; and an optical attenuation device configured to attenuate said multiple mode laser beam by an amount sufficient to provide a predetermined output power from said output of the laser module.
申请日期	2002-09-23
专利号	US20030067952A1
专利状态	授权
申请号	US10/251835
公开（公告）号	US20030067952A1
IPC 分类号	G02B6/26 \| G02B6/42 \| H01S3/094 \| H01S3/0941 \| H01S3/30 \| H01S5/022 \| H01S5/12 \| H04B10/2537 \| H01S3/04 \| H01S3/08
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/181661/52848
专题	半导体激光器专利数据库
作者单位	FURUKAWA ELECTRIC CO., LTD., THE
推荐引用方式 GB/T 7714	TSUKIJI, NAOKI,YOSHIDA, JUNJI,KIMURA, TOSHIO,et al. Semiconductor laser module and method for simultaneously reducing relative intensity noise (RIN) ans stimulated brillouin scattering (SBS). US20030067952A1[P]. 2003-04-10.