发明名称 |
MODE CONVERTER FOR HIGH POWER, HIGHER-ORDER MODE OPTICAL FIBER AMPLIFIERS |
摘要 |
A mode converter for use with a higher-order mode (HOM)-based fiber amplifiers takes the form of axicon-based configuration that is able to convert high power (tens of mW and higher) optical signals propagating in higher-order mode form into a diffraction-limited beam without experiencing the nonlinear effects (such as self-phase modulation) that are found when using a long-period grating (LPG) to create a diffraction-limited beam by performing mode conversion. The axicon may comprise a bulk optic device, a fiber-based device, or a GRIN-based configuration (where the refractive index profile of the GRIN element is formed to create a diffraction-limited signal). |
申请公布号 |
US2015340830(A1) |
申请公布日期 |
2015.11.26 |
申请号 |
US201514670831 |
申请日期 |
2015.03.27 |
申请人 |
OFS FITEL, LLC |
发明人 |
Nicholson Jeffrey W. |
分类号 |
H01S3/067;G02B6/34;G02B27/00;G02B27/46;H01S3/091;G02B6/26;G02B6/32 |
主分类号 |
H01S3/067 |
代理机构 |
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代理人 |
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主权项 |
1. An optical system for providing conversion of a higher-order mode optical signal into a diffraction-limited beam, the optical system comprising:
an optical waveguide for supporting the propagation of a higher-order mode optical signal; an axicon-based mode converter coupled to the output of the optical waveguide, the axicon-based mode converter including an axicon lensing element formed to exhibit optical characteristics such that when the higher-order mode optical signal from the optical waveguide is applied as an input to the axicon lensing element, the axicon element performs mode conversion in a manner that creates a diffraction-limited output signal. |
地址 |
Norcross GA US |