公开(公告)号：WO1998025326A1

公开(公告)日：1998-06-11

申请号：PCT/GB1997003353

申请日：1997-12-04

Applicant: UNIVERSITY OF SOUTHAMPTON ,  NILSON, Johan ,  HANNA, David, Colin ,  MINELLY, John, Douglas ,  PASCHOTTA, Ruediger, Eberhard

Inventor： UNIVERSITY OF SOUTHAMPTON

IPC: H01S03/06

CPC classification number: H01S3/06729 ,  H01S3/063 ,  H01S3/06716 ,  H01S3/0672 ,  H01S3/06733 ,  H01S3/08045 ,  H01S3/094007 ,  H01S3/09403 ,  H01S3/2308 ,  H01S2301/02

Abstract: We disclose single- or few-moded waveguiding cladding-pumped lasers, superfluorescent sources, and amplifiers, as well as lasers, including those for high-energy pulses, in which the interaction between the waveguided light and a gain medium is substantially reduced. This leads to decreased losses of guided desired light as well as to decreased losses through emission of undesired light, compared to devices of the prior art. Furthermore, also cross-talk and inter-symbol interference in semiconductor amplifiers can be reduced. We also disclose devices with a predetermined saturation power. As a preferred embodiment of the invention, we disclose a single (transverse) mode optical fibre laser or amplifier in which the active medium (providing gain or saturable absorption) is of the fibre's cross section where the intensity of the signal light is substantially reduced compared to its peak value. The fibre may be cladding-pumped.

Abstract translation: 我们公开了单波导或少量波导包层泵浦激光器，超荧光源和放大器，以及激光器，包括用于高能量脉冲的激光器，其中波导光和增益介质之间的相互作用显着降低。 与现有技术的装置相比，这导致引导的所需光的损失减少以及通过发射不期望的光而减少的损耗。 此外，还可以减少半导体放大器中的串扰和符号间干扰。 我们还公开了具有预定饱和功率的设备。 作为本发明的优选实施例，我们公开了单（横）模式光纤激光器或放大器，其中有源介质（提供增益或可饱和吸收）是纤维的横截面，其中信号光的强度基本上减小， 达到其峰值。 纤维可以被包层泵送。